Ethiopia starts filling Grand Renaissance dam- July 15, 2020
Ethiopia has started filling the Grand Renaissance Dam, a giant hydroelectric project it is building on the Blue Nile, its Water Minister said on Wednesday. “The construction of the dam and the filling of the water go hand in hand,” Seleshi Bekele said in televised comments. “The filling of the dam doesn’t need to wait until the completion of the dam.” The water level had increased from 525 to 560 meters, he said. The $4 billion Grand Ethiopian Renaissance Dam will have an installed capacity of 6,450 megawatts – more than doubling its existing capacity – and is the centerpiece of Ethiopia’s bid to become Africa’s biggest power exporter.


Crews dredge Mississippi River to make it deeper
Low river levels continue to cause problems
The low Mississippi River has caused major problems from Memphis to the Gulf of Mexico. Now, river leaders are digging into the bottom of the river to try to make it deeper.
The U.S. Army Corps of Engineers dredge ship Jadwin was on the river Wednesday in the area of Stack Island. The dredging continues because the rain brought by Hurricane Isaac did little to help the the river levels, officials said. Barges are still having trouble moving up and down the waterway.
"The floodwaters (from 2011) left silt on the bottom of the river channel. As you know, the river level is coming down. The bottom of the river is coming up. They are meeting in the middle and it's making the river hazardous in some places," said Kavanaugh Breazeale of the Corps of Engineers.
Normally the Corps' dredge efforts wrap up in September or October, but because of the low water levels, crews will continue working at least through November, officials said.


Netherlands-based marine contractor Royal Smals has ordered a fully-electric deep suction dredger from Holland Shipyards Group subsidiary TV Dredging.
The new vessel, a custom build dredger, will be used for sand extraction.
The jointly designed vessel will measure 22 metres long and 7.51 metres wide and will be capable of dredging up to depths of 27.3 metres. The total installed power will be 1,000 kW, with 550 kW for the dredge pump and 375 kW for the jet pump.
The dredger is expected to enter service in the second half of 2020.
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The reFRESH Fort Myers Beach Waterlines Project is underway to replace the old, unreliable water infrastructure with a new water system that is dependable and able to handle existing and increasing demand on the island. The project consists of work being done along Estero Boulevard in coordination with the reFRESH Estero Boulevard Project as well as four phases for replacement of waterlines, storm drainage and outfalls on side streets off of Estero Boulevard.
The project began in 2011 when the Town of Fort Myers Beach completed water main replacement for North Estero Boulevard. In 2015, the Town completed installation of new water mains in Basin Based Neighborhood, Bay Beach Lane and Laguna Shores. In early 2016, new water mains on Estero Boulevard from Times Square to Red Coconut RV Park were installed. The project will continue along Estero Boulevard and various side streets.
New water system will be able to handle increasing demand
Old materials will be replaced with reliable material to prevent frequent line breaks


Experiments with a seven-stage Electrical Submersible Pump (ESP) have been carried out to study the effect of liquid viscosity on the gas-liquid two-phase stage performance. The experimental tests provided data about the stage pressure increment as a function of the liquid flow rate at constant rotational speed, inlet pressure, and volumetric gas flow rate. Two different mineral oils were used so that the ESP two-phase stage performance was measured for 1 cP, 1.2 cP and 8.5 cP liquid viscosities, and for 8 different gas flow rates.
The experimental results demonstrate that the increase of liquid viscosity causes gas surging in the stage to initiate at lower normalized gas flow rates, reducing the gas handling capability of the stage. Increasing the liquid viscosity also causes the stage to reach a zero pressure increment at a higher normalized liquid flow rate. The pressure increment deterioration caused by the gas worsens with increased liquid viscosity. The performance map is analyzed and compared with that of another pump (GC-6100) with a higher inlet stage pressure.


Hydraulic boosters model GBH2-S are compressor units with hydraulic drive equipped with a single pumping unit. It is a flexible and versatile product that can be used for daughter stations fed by hydrogen trailers.
► Configuration with single, double or three compression stages
► Maximum outlet pressure: 50 MPa
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► Wide range of capacity up to 500 kg/day


Modular commercial trench drain with a variety of grates.
Complete system for indoor drainage.
Track and field drainage systems.
Surface drainage systems for roads, bridges and airports.
Custom built fiberglass trench drainage.
Underground storm water storage systems.
Designer bathroom drainage products.
Residential drainage systems and other products.
Oil water separators and spill containment solutions.
Tunnel and fence systems for small animals crossing roads.
Modular polymer ducting system with lockable covers.


Salini Impregilo announced it has signed a US$575 million engineering, procurement and construction contract to design and construct portions of the 280-MW Nenskra hydroelectric project on the Nenskra River in the Svaneti district of Northwest Georgia.
Work on the project began the first week of September and has a 62-month construction period.
The primary objective of the transaction would be to increase electricity generation from renewable sources in Georgia and eliminate the wintertime electricity generation deficit of the country, by developing a new hydropower plant on the Nenskra River.
According to a Salini Impregilo press release, “The project consists of a dam, pressure tunnel, surge tank, penstock and powerhouse. Additionally, a transfer tunnel will convey water from Nakra River to the new Nenskra Dam Reservoir to improve the performance of the project.”
The World Bank, which on Sept. 2 listed the project’s capacity at 210 MW, said the Nenskra Dam, reservoir and water delivery systems were initially conceived in 2009 and 2010. After various visits to the project area, the process culminated with a pre-feasibility study released in March 2010. Stucky Ltd., an engineering firm based in Vaud, Switzerland, produced a detailed feasibility study in May 2011.
After considering site conditions in the Nenskra River basin, developers decided to build an asphalt faced rockfill dam. Salini Impregilo said, “The peculiarity of the structure is the 65-meter-deep cutoff wall to be realized throughout the alluvial deposit on the riverbed.”
The main dam is 135 meters in height and 820 meters in length on the upper Nenskra River, creating a live storage of about 182 million m3. The reservoir would directly capture the flow of Nenskra River and indirectly fill with flow from the adjacent Nakra River via a transfer tunnel.
A 12.4-kilometer-long, 4.5-meter-diameter transfer tunnel is slated to convey flow from an intake on the Nakra River to the Nenskra Dam catchment area. The free-flow transfer tunnel optimizes the 725 m head, which is at a point upstream from an existing hydroelectric project that also utilizes the Nakra River. The Enguri River basin, to which Nakra River is a tributary, sources flow into the 700-MW Khudoni hydroelectric project.
The Nenskra Reservoir sends flow downstream to the facility’s powerhouse via a 16.5-kilometer-long headrace tunnel that runs parallel to the Nenskra River and connects to a 4.5-meter-diameter pressure shaft and penstock.
Salini Impregilo said, “The project is capable of providing, on average, a total annual energy generation of 1,219 GWh, [with] 259 GWh of guaranteed supply in the winter months and maximizes export benefits in the summer months. The power will be distributed through a 220 kV transmission line to Akhari-Jvari substation.”


Canada’s BC Hydro has awarded three contracts with a combined value of more than $1.26 billion for the 1100 MW Site C hydropower project in the Canadian province of British Columbia. The Site C dam and hydropower generation project is being built with a total investment of $8.2 billion on the Peace River in northeast British Columbia.
The $1.22 billion contract for construction of the generating station and spillways has been awarded to the Aecon-Flatiron-Dragados-EBC Partnership (AFDE Partnership). The AFDE Partnership will be responsible for providing civil works related to the powerhouse, penstocks, spillways, and power intakes of the project. The powerhouse will have six generators with a combined capacity of 1100 MW. AFDE is expected to start work in Spring 2018 and is likely to complete the work over five years.
BC Hydro has also awarded contracts of $25.2 million to F&M Installations for construction of the Site C substation, and $17.6 million to Reel Coh for the design, supply, and commissioning of the bridge and gantry cranes.


The optimal spillway design is of great significance since these structures can reduce erosion downstream of the dams. This study proposes a risk-based optimization framework for a stepped spillway to achieve an economical design scenario with the minimum loss in hydraulic performance. Accordingly, the stepped spillway was simulated in the FLOW-3D® model, and the validated model was repeatedly performed for various geometric states. The results were used to form a Multilayer Perceptron artificial neural network (MLP-ANN) surrogate model. Then, a risk-based optimization model was formed by coupling the MLP-ANN and NSGA-II. The concept of conditional value at risk (CVaR) was utilized to reduce the risk of the designed spillway malfunctions in high flood flow rates, while minimizing the construction cost and the loss in hydraulic performance. Lastly, given the conflicting objectives of stakeholders, the non-cooperative graph model for conflict resolution (GMCR) was applied to achieve a compromise on the Pareto optimal solutions. Applicability of the suggested approach in the Jarreh Dam, Iran, resulted in a practical design scenario, which simultaneously minimizes the loss in hydraulic performance and the project cost and satisfies the priorities of decision-makers.
ASJC Scopus subject areas


Louisville Water Company Completes I-64 Water Main Project
Wednesday July 6, 2011
Louisville Water Company has completed a major capital improvement project that will improve water pressure, reliability and fire protection for northeastern Jefferson County including the neighborhoods of Landis Lakes, Copper Field and Lake Forest. The project included construction of over five miles of 36-inch transmission main along I-64 from the Gene Snyder to the Jefferson/Shelby County line. The project also includes a new pump station and water storage tank.
The infrastructure will serve an area that’s seen rapid residential and commercial growth in the past 15 years. The total project budget was $20 million. Louisville Water received $4 million in funding from the American Recovery and Reinvestment Act to help fund the transmission main project.


|Pump Parts suppliers The open impeller has no cover plate on both sides of the blade, which is easy to manufacture and easy to clean. It is suitable for conveying materials containing a large amount of suspended solids, with low efficiency and low liquid pressure. The semi closed impeller has no cover plate on one side of the suction port, while there is a cover plate on the other side, which is suitable for conveying materials that are easy to precipitate or contain particles, and the efficiency is also low; the closed impeller has a front cover on both sides of the blade Rear cover plate, high efficiency, suitable for conveying clean liquid without impurity. General centrifugal pump impeller for this kind of.|
Main parts of centrifugal pump
The main components are impeller, pump shell and shaft seal device.
The function of impeller is to transfer mechanical energy of prime mover to liquid directly, so as to increase static pressure energy and kinetic energy of liquid (mainly static pressure energy).
The impeller generally has 6 ~ 12 backward curved blades.
Impeller has open, semi closed and closed three types.
The impeller has two suction modes: single suction and double suction.
The function is to seal the impeller in a certain space, so as to inhale and press out the liquid by the impeller. Pump case made of volute shape, it is also known as volute. As the cross-sectional area of the flow channel is gradually enlarged, the high-speed liquid thrown out from the impeller gradually reduces the flow velocity, so that part of the kinetic energy can be effectively converted into static pressure energy. The pump shell not only collects the liquid thrown out by the impeller, but also is an energy conversion device.
Shaft sealing device
The function is to prevent the liquid in the pump shell from leaking out along the shaft or the external air leaking into the pump shell.
There are two kinds of common shaft seal devices: packing seal and mechanical seal.
The filler is usually impregnated with oil or coated with graphite asbestos rope. Mechanical seal mainly relies on the relative movement of the end face between the moving ring installed on the shaft and the stationary ring fixed on the pump shell to achieve the purpose of sealing.Pump Parts suppliers


Puget Sound Naval Shipyard, Bremerton, WA
Refurbish Main Dewatering Pump #2, Pumpwell 2
This design-build project at the historic Pumpwell 2 is a follow up to an earlier uncompleted effort to execute similar work. This project will refurbish the main dewatering pump #2 located inside the drydock of Pumpwell 2. The scope of the work will include replacement of the pump impellor, pump motor, pump casing, pump footings, and motor controls, and procurement of four check valves and replacement of one check valve. The shaft connecting the pump and motor will also be refurbished, as will the shaft bearings and couplings. Components will then be aligned and tested.


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QW Vertical Electric Submersible Sewage Pump own compact structure, small volume, convenient to move, simple installation, without having to build pump room, working while being submerged into water, and greatly reduce the project cost;Seal oil chamber is equipped with high precision anti-interference leakage detection sensor, and the thermal sensor is embedded in the stator winding, absolute protection of pump motor.According to the user, can be fitted with automatic security control cabinet and float switch, the pump leakage, leakage, overload and overtemperature of safety protection and automatic control of pump according to the required level change.
1.The impeller of QW Vertical Electric Submersible Sewage Pump adopts particular large channel structure, so the drain has been improved greatly.
2.To improve the application safety this pump can be fixed with various protective devices according to the consumer's requirements.
3.It adopts inner self-flow circulation system.
4.Mechanical seal adopts the latest material and is made wth extra care, so its life is over 8000 hours.
5.It can adopt double-way and automatic coupling installation device which makes the installation,maintenance of thr unit convenience and quick.
6.To realize automation management.
|1.||Living waste water discharging|
|2.||Sewage system of municipal works|
|3.||Sewage system in factory and mine corporation|
|4.||Other transportation of non-corrosive and diluted medium|
|5.||Temporary floodwater discharging|
|6.||Waste water discharging of public facility|
|7.||Various water-discharging system|


|RFx ID :||21351207|
|Tender Name :||Mosgiel Stormwater Pump Station(s) Renewal|
|Reference # :||8653|
|Open Date :||Friday, 2 August 2019 4:30 PM (Pacific/Auckland UTC+12:00)|
|Close Date :||Friday, 23 August 2019 4:00 PM (Pacific/Auckland UTC+12:00)|
|Tender Type :||Registration of Interest (ROI)|
|Tender Coverage :||Sole Agency [?]|
|Required Pre-qualifications :||None|
|Alternate Physical Delivery Address :|
|Alternate Physical Fax Number :|
The Dunedin City Council is seeking to establish a shortlist of suitably experienced and resourced main contractors for the construction of two new stormwater (SW) pump stations in Mosgiel. These two new stormwater pump stations will replace existing pumping stations and upon completion, will provide increased SW pumping capacity for their respective catchments.
Construction of these pumping stations will be completed in two stages, namely:
Stage 1 is the Reid Avenue Pump Station, which includes a new outfall with connecting pipework, along with the construction of inground concrete tanks, installation and commissioning of new SW pumps and the supply and installation of an emergency generator, generator building, MSB and controls.
Stage 2 is the Carlyle Road Pump Station.


WAPDA Chairman Stresses Timely Completion of Diamer Basha Dam, Dasu Hydropower Projects
LAHORE MIRROR– Chairman WAPDA Engr Lt Gen Sajjad Ghani (Retd), during his visit to Diamer Basha Dam and Dasu Hydropower Project, directed the projects’ teams to accelerate the construction work, so that both projects could be completed in accordance with their timelines.
Electricity generation from Dasu Hydropower Project is scheduled in 2026, whereas, Diamer Basha Dam Project is scheduled for completion in 2028. WAPDA successfully diverted mighty River Indus at Dasu Hydropower Project in February 2023 and at Diamer Basha Dam in December 2023.
In the first leg, the Chairman reached Diamer Basha Dam and reviewed construction work on the left and right abutments of the dam, diversion canal, guide wall, upstream and downstream coffer (temporary) dams and permanent bridge.
CEO Diamer Basha Dam Company, GM/PD Diamer Basha Dam Project, the consultants and the contractors were present on the occasion. Construction activities are being carried out on 13 key sites of the project. The permanent bridge along with the approach road downstream of the main dam will be completed in June this year.
In the second leg, the Chairman visited Dasu Hydropower Project and witnessed construction activities at under-ground power house and transformer cavern, left abutment and upstream coffer (temporary) dam.
GM/PD Dasu Hydropower Project, flanked by the consultants and the contractors, briefed the Chairman that construction work is simultaneously continuing on 13 sites, including excavation and support work at power house, transformer cavern as well as left and right abutments of the dam.
Excavation is also in progress on open areas, five tunnels and two bridges under relocated Karakoram Highway.
Diamer Basha Dam, on its completion, will store 8.1 MAF water to irrigate 1.23 million acres of land and generate 4500 MW, providing 18 billion units of green, clean and low-cost electricity to the National Grid every year.
The 4320 MW-Dasu Hydropower Project is to be completed in two stages. The Stage-1, with installed generation capacity of 2160 MW, will contribute 12 billion units of economically affordable electricity to the National Grid per annum.


Datos del Proyecto
Cliente: Canal de Isabel II
Localización: Madrid | Spain
Área de Negocio: Networks (Water)
Descripción del Proyecto
The works include the construction of a new pipeline to supply Serranillos del Valle, from the connection chamber, where it connects with the impulsion to Griñón to the outlet of the existing regulation tank at the Griñón DWTP.
The works included the execution of the corresponding trench and driving ducts, the installation of the appropriate protective and handling elements, the execution of the reinforced concrete housing structures and the replacement of road surfaces and sidewalks affected by the installation. The project also includes the extension of the pumping system at Griñon by means of the installation of an additional 75 kW pump equipped with a frequency converter and the installation, a 4 m³ water hammer arrestor. The existing installations were updated in preparation for the new pump and the start-up of the new pumping system.


Among these projects is the infrastructure construction and environmental improvement project for Tham Luong–Ben Cat–Rach Nuoc Len canal. The project will connect HCMC with neighboring provinces through inland waterway network, including Long An Province on Cho Dem River, Binh Duong and Dong Nai provinces on Sai Gon River.
The clean-up project on polluted Xuyen Tam canal which runs through Binh Thanh and Go Vap districts aims to prevent flooding on the canal and clean up Nhieu Loc-Thi Nghe canal.
Additionally, other plans on the third phase of the HCMC Water Environment Improvement Project on Tau Hu-Ben Nghe-Doi-Te canal, boosting the project on preventing flooding caused by high tides linked to climate change, building and upgrading the 96km-long water drainage system and renovating the 5km-long canal system in the 2021-2025 period will be kicked off.
The city needs more than VND101,000 billion (US$4.38 billion) for the above mentioned projects.


Boasting outstanding expertise in various infrastructure sectors, including water and hydropower facilities, airports, roads, ports and housing projects, SINOHYDRO offers package-solutions through project models from simple construction to EPC and BOT. Currently, SINOHYDRO has 486 international projects under construction in more than 72 countries, with total contract value of nearly USD 43 billion. Many large and mega scale projects built by SINOHYDRO are landmarks in the host countries.
Yangtze Three Gorges Project
The Yangtze Three Gorges Project, with a total installed capacity of 32*700MW, is presently the largest hydropower project in the world. Commenced in 1994, the project was fully operational in 2009.As one of the main contractors, SINOHYDRO played an active role in the entire process.
El Palito Thermoelectric Plant
El Palito Thermoelectric Plant, located in Venezuela, is part of the EPC contract package between SINOHYDRO and owner PDVSA, signed in April 2010. El Palito is designed to have four power units with a total installed capacity of 772MW. By the end of September 2012, two of the units started power generation, greatly improving the country’s longstanding power shortage problem.
Dali Zhemo Mountain Wind Power Plant
Dali Zhemo Mountain Wind Power Plant, located in China's Yunan province, began power generation at year-end 2008. The green power project was funded partly through SINOHYDRO. With a total installed capacity of 30MW, it is China's first wind power plant built in a high-land area with an average altitude of more than2800m.


The Kafue Gorge Upper Power Station (KGU), is an operational hydroelectric power plant across the Kafue River in Zambia.
KGU is located on the Kafue River, approximately , by road, south of Lusaka, the capital and largest city in Zambia. This is approximately upstream of where the Kafue River empties into the Zambezi River, and approximately upstream of the Kafue Gorge Lower Power Station. The geographical coordinates of Kafue Gorge Upper Power Station are:15°48'25.0"S, 28°25'16.0"E (Latitude:-15.806944; Longitude:28.421111).
KGU is an earth-rockfill dam with a concrete spillway with four radial gates. The electromechanical capacity is six generators of 150 megawatts each, for maximum capacity of 900 megawatts. The reservoir measures in surface area. The power generators and electromechanical power house are below ground. The water effluent from 900 megawatts Kafue Gorge Upper Power Station is used downstream to power the 750 megawatts Kafue


hydro power project would have a reservoir storage capacity of 164 million cubic meter.
hydropower project is located on the Jhelum River, one of the rivers of the Indus River System in northern Pakistan, about 55 kilometers east of Islamabad.
Pingzhi Liu had gone missing in Dec 2017 while working on the Karot
In the deal, Fact and Fiction adds Karot
's production capabilities.
China and Pakistan held a ceremony recently to celebrate starting construction of the Karot
Hydropower Plant, one more energy project on the sideline of China-Pakistan Economic Corridor (CPEC).
Summary: Rawalpindi [Pakistan], Dec 21 (ANI): A Chinese engineer working on the Karot
Hydropower Project in Pakistan's Kahuta has gone missing.
Private Power and Infrastructure Board (PPIB) and Karot
Power Company have signed implementation agreement for development and operation of 720 MW Karot
Punjab Environmental Protection Agency (PEPA) has approved constructing 720 MW Karot
Hydropower project, worth $1.4 billion on Jhelum River near village Karot
, Kahuta tehsil.
The run-of-river Karot
Hydropower Project, with concrete gravity dam having installed capacity of producing 720 MW power would be completed by 2020.
Shaofeng said that 720 MW Karot
hydropower project is at its first stages (feasibility stage) and that the tariff has been approved by NEPRA, said a BoI statement.


Impacted Ward: 2
Contractor: Bi-State Utilities
This purpose of the project is to alleviate frequent flooding along Woodlawn Drive and Gustane Drive. The conceptual project is to replace the undersized conveyance system and increase the inlet capacity.
Virtual Road Show
The existing drainage system upstream of rose Brae Dr. is undersized with capacity issues causing localized flooding along Woodlawn Dr., Gustane Dr., Cunningham Ct. and Nathan Ave. Learn more through our Virtual Road Show:
Along Woodlawn Drive and Gustane Drive
- Notice to Proceed with Construction was September 17, 2020.
- Construction for this project is substantially complete. They are waiting on extra fencing to be delivered before completion.


Enguri is a 1,325MW hydro power project. It is located on Enguri river/basin in Abkhazia, Georgia. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in 1978.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||1,325||1,325||–||Active||Abkhazia, Georgia||Engurhesi|
The project is developed and owned by Engurhesi. The company has a stake of 100%.
The hydro reservoir capacity is 1,100 million cubic meter. The gross head of the project is 410m. The total number of penstocks, pipes or long channels that carry water down from the hydroelectric reservoir to the turbines inside the actual power station, are 5 in number. The penstock length is 451m. The project generated 3,300 GWh of electricity.
The project got commissioned in 1978.
Turboatom was selected as the turbine supplier for the hydro power project. The company provided 5 units of francis turbines, each with 265MW nameplate capacity.
Turboatom supplied 5 electric generators for the project.
Engurhesi Ltd is a power generation company in Georgia. It owns and operates the Enguri Hydro Power Plant which generates 1300 MW of electricity.
All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.


SCH Number 2021120558
- Alameda Reservoir Improvement Project
- The project will replace the roof and roof framing system and seismically upgrade the Alameda Reservoir. The proposed work includes roof replacement, replacement of the reservoir’s valve stem extension, installation of a new forced air ventilation system, and installation of new ventilation and interior lighting.
2 documents in project


CNP Pump Supplier KL
New generation submersible sewage pump with improved features. Body is made of cast iron and impeller is made of cast iron/SS304/SS316. Auto-coupling design allows for pump top pull out from sump pit for maintenance works without needing to dismantle pipeline.
Single-stage in-line circulation pumps, equipped with standard motor and mechanical seal. The design allows it to be less susceptible to impurities in the liquid. The motor is designed to be pulled out from the top during disassembly, the pump can be repaired without affecting the pipeline.
Pump body is made of cast iron.


Work has restarted on the removal of the Beaver Dam Brook culvert. Originally scheduled for the end of summer, higher than expected water levels had delayed construction until now. As shown in the photo, crews installed temporary coffer dams to allow the work to proceed. Measures are being taken to allow the brook to continue to flow to prevent upstream flooding during the project
Removal of the culvert under the MBTA railbed along Beaver Dam Brook through Reedy Meadow is proposed to mitigate flooding for surrounding neighborhoods. Brush and tree removal along the MBTA railroad bed from the Episcopal Church to Reedy Meadow was completed in August. The culvert construction project is now continuing at the site, weather permitting. Residents having further questions are asked to call Town Engineer Charlie Richter at (781) 334-9503.


عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Diversion dams in order to raise the water level of river and conveys of water into the main canal irrigation network is designed. If the dimensions of different parts of the diversion dam be considered large, stability will be supplying, but due to the increase volume of materials, construction costs will be more. Design engineer must choose sections of dam that had least amount of materials and meantime be sustainable. Optimize section of diversion dams can be calculated with classic and genetic algorithm methods. The purpose of this study evaluation the efficiency of genetic algorithm to find optimized section of diversion dam in addition to regard laws and regulations designed the least volumes of materials. Decision variables that used in this study include wall height upstream and downstream of dam, slope in the upper body, thickness of stilling basin, thickness of concrete blanket upstream and length of concrete blanket. The objective function is to minimize amount of materials is used. Design constraints used include abide the stability of dam safety factors against Piping, Sliding, overturning and failure. In this research, section of Nazelian Dam by using genetic algorithm optimized and the effect of GA operators in objective function were investigated. Results show, if the genetic algorithm was used in design for overturning with a minimum safety factor of 2.1, the body weight of the dams and volume of materials decreased by 15.4%. Suitable values for the number of generation, population size, probability crossover and mutation to optimize Diversion Dam were 50, 30, 0.55 and 0.05, respectively.


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- Pump manufactured with heavy duty housing, cable leads are isolated by hardened epoxy for water proofing, double mechanical seal.
- Achieved IP68 (highest submersible water resistant protection rating), keeps pumps dust free and water proof to provide extended pump life and performance.
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- Water extracting from rivers, lakes and reservoirs.
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- Others : Extraction of water from dock and river.
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- Liquid Temperature: 0~40°C
- Submersion Depth: 30m (100ft)
||10 HP (7500 watts)
|Maximum Flow Rate
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Drainage and piling works will be carried out soon following the conclusion of site clearing and soil investigation works at the construction site of the 130-metre Sg. Nanga Machan Bridge in the Kanowit district.
Upgrade works are also being carried out along 9.5km of Jalan Ulu Machan, which connects to the concrete bridge. The current dirt road will be turned into a paved single-lane road.
Construction for both the road and the bridge will be completed by mid-2021.
The infrastructure project is carried out by the Upper Rajang Development Agency (URDA), under RECODA.


Ames Construction Gets Second Contract For FM Diversion Project Work
$59 million to build a flow control structure on the Wild Rice River
FARGO, N.D. — U.S. Army Corps of Engineers has awarded its second contract for the $2.75 billion Red River diversion project.
A $59 million project to build a flow control structure on the Wild Rice River will be built by Ames Construction out of Burnsville, Minnesota.
The concrete structure with two gates will be located about 7 miles south of the FM metro.
The first contract, for a control structure closer to the metro was awarded to Ames Construction in 2016 for about $46 million.
That project was delayed over a lawsuit by upstream people and changes in order to meet Minnesota permit requirements. Construction resumed earlier this year.


Lifting chains and hooks engineered by Flygt are available in several lengths for a range of loads:
Chain blocks are available with calibrated lifting chains with tight tolerance:
The block is for manual operation. A trolley is used for installation on beams. The block is used on Flygt lifting cranes.
Semi permanent, submersible pump installation. Wet pit arrangement with the pump installed on twin guide bars with automatic connection to the discharge pipe.
Column pipe, semi permanent, submersible pump installation. Wet pit arrangement with the pump installed inside the discharge pipe, automatically seated on a flange.


Pentax DG Submersible Pumps
Pentax DG Submersible Pumps are suitable for rainwater with set-back Vortex type stainless steel impeller and cast iron pump body. These pumps are suitable for pumping liquids with suspended solids; ideal for civil and household applications.
The sealing system consists of two seals lubricated in oil chamber.
Materials of construction
Pump body - Cast Iron
Motor Cover - Stainless Steel
Impeller - Stainless Stel set back Vortex
Motor Shaft Impeller - AISI 430 Stainless Steel
Mech Seal - double seal with oil barrier; silicon carbide on pump side, sealing ring on motor side
Maximum flow - 400 L/MIN
Maximum head - 11 M
Maximum liquid temperature - 40 deg c
Motor protection IP68
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Sundsbrum is a 103MW hydro power project. It is located on Skeinsvassdraget river/basin in Vestfold og Telemark, Norway. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. Post completion of construction, the project got commissioned in 1970. Buy the profile here.
Skagerrak Energi and VEST-TELEMARK KRAFTLAG are currently owning the project having ownership stake of 91.5% and 8.5% respectively.
Sundsbrum is a reservoir based project. The gross head of the project is 480m. The project generated 389 GWh of electricity.
The project got commissioned in 1970.
For more details on Sundsbrum, buy the profile here.


Maldives Transport and Contracting Company (MTCC) states that the work on design and build of Sh. Foakaidhoo Harbor Development is well underway, with overall 62% project progress.
According to MTCC, the fourth shipment of precast concrete blocks required for quay wall construction has been delivered to the project site on 15th April 2022.
Project work consists of dredging operations of 45,795cbm, construction of a 464m quay wall, a 100m revetment, a 507m breakwater, installation of 2320sqm harbor pavement, installation of streetlights and navigation lights.
The value of the project is MVR 64.6 million.


43 hydro projects under construction: Govt
Thursday, April 6, 2017, 5:01 PM
Forty three hydro-electric projects, with total generating capacity of 11,928 MW, are under construction. Out of these 43 projects, 16 are stalled due to financial constraints and other reasons, Power Minister Piyush Goyal said. Total power generation capacity of the 16 projects is 5,163 MW and the anticipated completion cost of these projects would be Rs.52,306 crore while their original cost was Rs.27,027 crore.


Maldives Transport and Contracting Company (MTCC) has revealed that work on the design and build of Ha. Ihavandhoo Harbour is making significant headway.
According to MTCC, the overall project progress currently stands at 35 percent. New harbor basin dredging works for the project is currently ongoing, with 59 percent completion.
The total value of the project is MVR 48.5 million.


Technical visit 1. QARTLI WIND FARM
Qartli Wind Farm is the first wind power plant in Georgia with a total installed capacity of 20.7 MW and an annual forecasted generated electricity output of 84 100 000 kWh. The plant was commissioned on December 20 of 2016.
Technical visit 2. Zhinvali HPP (130 MW) and Reservoir
Zhinvali, also Jinvali, is an artificial water reservoir located on the river Aragvi in Georgia. The building of the hydroelectric dam formed the Zhinvali Reservoir. The dam has been built in 1986.


Port of Wells: Dredging to Begin Next Week (UK)
The Port of Wells has announced that the main channel dredging project is scheduled to commence on 24th February 2014.
The port’s dredger “Kari Hege” will be engaged in dredging operations in the main channel north of number 4 buoy, between buoys 4 and 2.
All material dredged from these areas will be placed on the berm which is marked by the port hand channel buoys.
The locations which will be dredged are dictated by the regular survey results.
Press Release, February 21, 2014


Laurel Chapel Box Culvert Replacement
T. R. Long Engineering, P.C. served as the General Engineering Consultant for the construction of repairs/replacement of a failed box culvert along Laurel Chapel Road. Mr. Long served as the project manager and design engineer. He also supervised bidding, contract administration, and construction observation.


- Flood Warning
The Flood Warning continues for
The Savannah River at Burtons Ferry.
* At 9 PM Sunday the stage was 18.0 feet.
* Flood stage is 15.0 feet.
* Minor flooding is occurring.
* Forecast, the river will continue rising to near 18.1 feet by early
Wednesday morning. Additional rises may be possible thereafter.
* At 18.2 feet, the picnic area at Stoney Bluff Landing becomes
flooded. Access to the house at the end of Stoney Bluff Landing
Road is limited.


Bianco AHS05A Light Construction Submersible Pump
The pump is a submersible drainage pump fitted with semi vortex, eurethane coated impeller plus agitator, supplied wired and ready to install. The pump has a dual mechanical seal in oil chamber and can handle particles to 25 mm x 10
The pump is characterised by:
- Corrosion resistant pump components.
- Fully automatic operation.
- Dual Mechanical Seal in oil bath, SIC/SIC, Carbon Ceramic.
- Eurethane coated semi vortex impeller allows pumping of suspended solids, sandy and stringy material.
- Agitator on the end of the pump shaft helps prevent air locking and clogging.
- Carry handle.
- Versatile outlet connection.
- 240V single phase motor with in-built auto reset thermal overload.
- Suitable for construction sites, storm water, basements.
|Product Type||Light Construction Pump|
|Suitable For||Construction Sites Stormwater|
|Flow Range Category||c. 200 – 299 L/min|
|Flow Rate (L/min)||220 L/min|
|Kilo Watts||0.4 kW|
|Head Range Category||a. 0 – 39 m|
|Max Head (m)||12 m|
|Port Size Outlet||2″ BSPF outlet|
|Particle Size||10 mm|
|Warranty (months)||12 Months|
Dimensions: LxHxW (mm) 240 x 330 x 190
- Corrosion resistant pump components
- Can handle particles to 25mm x 10mm
- Fully automatic operation
- Cast iron pump body
- Dual mechanical seal in oil bath, SIC/SIC Carbon Ceramic
- Eurethane coated semi vortex impeller allows pumping of suspended solids, sandy and stringy material
- Agitator on the end of the pump shaft helps prevent air locking and clogging
- Versatile outlet connection
- 240V single phase motor with in-built auto reset thermal overload
- 10m of power cable
- Suitable for construction sites, storm water and basements
Liquid: Clean water temperature range: 2 – 35 °C
Pump body: Cast Iron
Impeller: Eurethane coated semi vortex
Shaft: Stainless Steel 403
Shaft seal: Dual Mechanical in oil bath, Silicon Carbide/Silicon Carbide Carbon/Ceramic
Installation: Maximum ambient temperature: 40 °C
Maximum submergence: 8m
Pipe connections discharge: 2”


The Shuakhevi hydropower plant project, Georgia
Briefing | 2 May 2014
The European Bank for Reconstruction and Development has approved a loan of up to USD 86.5 million for Adjaristsqali Georgia LLC (AGL), a subsidiary of the Norwegian Clean Energy Invest for the construction of the 185 MW Shuakhevi hydropower plant (HPP). The project involves the construction of two dams and three diversion tunnels. Bankwatch member group Green Alternative has concerns about the possible negative impacts of the Shuakhevi HPP and the overall justification for the project, both explained in this briefing.


Clarke Submersible Water Pumps
Order Before 3pm for next day delivery
Clarke Submersible Water Pump
This submersible water pump is manufactured from tough, non-corrosive and rustproof materials, as well as having a long-life ceramic shaft for reliability.
Best for heavy-duty draining applications, the Clarke Submersible Water Pump shifts both clean and dirty water including particles up to 35mm dia.
Fitted with an auto start/stop float switch for automatic water level control, the float switch enables the water pump to stop and restart automatically as the surrounding water level changes. As the water level rises, the switch will float and start the pump.
This premium water pump will ensure that the grower’s nutrient solution is automatically and efficiently pumped into their hydroponic system with high pressure over a great distance.
- Max flow rate of 133 l/min.
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- Max Head (lift height) 8m.
- Made from tough, non-corrosive and rust-proof materials.
- 1 ½” BSP threaded pump outlet.
- Includes elbow and outlet reducer adaptors.
- Integral carry handle for easy transportation.


Neelum Jhelum Power Project to be inaugurated on Friday
ISLAMABAD:Neelum Jhelum Hydro Power Project will be formally inaugurated on Friday.
Power supply from the project has been started on experimental basis and the first unit is already providing sixty megawatt electricity to national grid.
The project will provide nine hundred sixty-nine megawatt electricity to the national grid. APP/AFP


Supastream pumps are general purpose pumps designed for use in low pressure water recirculation applications.
The pump’s impeller and diffuser design maximizes the hydraulic output of the pump while minimizing turbulence. The pump’s efficient hydraulic performance shortens run times and reduces energy consumption leading to lower operating costs.
The pump body is manufactured utilising state of the art engineering plastic moulding with a single piece strainer pot and volute for extra strength. A high grade 316 stainless steel mechanical seal is incorporated for extra protection against corrosion. e.g. from chlorinated water, ozone, iodine, Baquacil, bromine and salt water.
- Clear basket lid.
- Quick connect barrel unions for UPVC pipe.
- High grade carbon/graphite mechanical seal with 316 stainless steel spring assembly.
- High performance motor:
– IP44 rating
– Motor shaft 303 grade stainless steel
– Fan cooled
– Thermal overload protection


Hutchinson Water International Holdings (HWL)
Description for Kokhav Hayarden Hydropower (Israel)
Kokhav Hayarden is a classical Pumped Storage Plant with an installed power of 300 MW
- Upper Dam ( Earthfill, H = 25 m, L = 1.8 km, Vol. = 1.5 Mm3, Live Storage = 3.1 Mm3 )
- Lower Dam ( Rockfill w. concrete facing, H = 18 m, L = 1.7 km, Vol. = 0.2 Mm2, Live Storage = 2.8 Mm3 )
- Headrace tunnel ( L = 755 m, D = 5.5 m, Concrete Lining )
- Upper Surge Shaft ( H = 48 m, D = 14 m )
- Penstock ( H = 670 m, D = 4 m )
- Underground Power House ( No. 2 Francis turbines, IP = 300 MW )
- Tailrace Tunnel ( L = 1.6 km, D = 5.5 m )
Roma Est Sewage Plant (Italy)
Sewage treatment plant for domestic and industrial waste water.
Kamuzu I Dam (Malawi)
The scope of the assignment is the raising,...
Santu Miali Hydropower (Italy)
Refurbishment of the Santu Miali hydropower plant
Bagré Multi-Purpose Project (Burkina Faso)
The “Pôle de Croissance de Bagré”...
Little Beles Storage Plant (Ethiopia)
Reservoir for water supply with a storage capacity equal to 3.5 Mm³.
Dam Break Studies (Mauritius)
The assignment consists in the analysis of...
Bwari Aqueduct (Nigeria)
Water supply system for the district of Abuja, including pipelines, pumping...
Thwake Multi-purpose Dam (Kenya)
Thwake is a multi-purpose dam designed to...
Plaine Hollandaise Dam ( Seychelles )
The project is aimed at increasing the drinking...


In general, Reservoir Simulation Software List is an engineering or a mathematical representation of an actual system or an application in real life. Reservoir simulation is also a specific field developed by petroleum engineers that using porous media as the basis for simulation in order to accurately predict the behavior of fluid within the reservoir.
To develop reservoir simulation, the fluid and/or the reservoir’s environment must be studied in its environment. This can be done with the aid of computer-aided engineering (CAE) and petroleum engineering techniques. The reservoir in a reservoir simulation tool is used as a model of the actual reservoir and used for modeling and engineering purposes.
There are three types of reservoir simulation tools. They are the fluid modeling software, the reservoir simulation generator and reservoir simulation analysis software. All these tools are similar in that they are used to simulate or model an operational reservoir. The main difference between these three types is in their methodologies, and the way they generate the reservoir simulation results.
Hydraulic Simulation is the most widely used simulation technique in the engineering field. This is mostly done with hydraulic simulations to predict, model, forecast and analyze the flow of fluid through the reservoir. Hydraulic simulations can be used for analyzing and forecasting a reservoir’s performance, reservoir maintenance, reservoir operations, reservoir design, and the flow conditions of a reservoir.
Another type of reservoir simulation software is the reservoir simulation generator. This software is used to create a simulation that generates the results for a set number of variables that are then used in modeling the reservoir.
A reservoir Reservoir Simulation Software List is generally used for modeling and testing of reservoir models. It helps engineers and scientists in analyzing reservoir performance. These reservoir simulation tools are used by researchers to help them study reservoir models, predict their performance, and make changes in the reservoir model.
Finally, reservoir simulation analysis software is used in order to make statistical data and calculations on the reservoir model. Some examples of the type of analysis that is done using this software include the formation of reservoir statistics, which helps engineers to predict the performance of a reservoir, and the prediction of reservoir flow rate, which helps determine the reservoir flow capacity.
All of these simulation tools are designed to make the simulation and the resulting data usable. Engineers and scientists use the simulation tools to make the necessary changes in the reservoir or to make the modeling and engineering work easier.
Simulation tools will continue to improve as Reservoir Simulation Software List. As new simulation techniques are applied to improve the quality of results and as well as to provide information about reservoir flow and other physical properties, it is expected that these tools will become more accurate and better for use in a variety of applications. The reservoir simulation software industry will continue to gain popularity.


Heatrae 95605870 Cartridge 8 0BAR Valveexpansion Relief - 552724
Product DetailsThe pressure relief valve helps to control pressure build up within a closed system. It is set to vent as pressure increases to prevent pressure causing the system to malfunction or break .
- Pressure: 8 bar
Type Pressure Relief Valve Cartridge Manufacturer Model No 95605870 Brand Name Heatrae Sadia EAN 5012496058705


Fort Peck Dam and Lake
- Lakes and Rivers, Boating/ Boating Tours/ Water Craft Rentals, Camping, Fishing/ Fishing Access Sites, Recreation Area, Bird and Wildlife Viewing
- General info
A product of FDR’s New Deal, construction on Fort Peck Dam began in October of 1933. It was constructed by hydraulic methods and to this day is the largest hydraulically earth-filled dam in the world. Electrically operated dredge boats dredged Missouri River bottom sands, silts, and clays which were then pumped through 28” pipelines to the dam site. The dredged area is covered by the Fort Peck Lake today.
At its construction peak, nearly 11,000 people were employed. At one time during the construction years, the population of the area exceeded 50,000 in 18 construction boom towns surround- ing the lake. Life magazine featured one of these towns in the November 1936 issue. Today the population of Fort Peck Lake is but a mere 235.
To allow construction of the dam, the waters of the Missouri River were diverted through four flood control tunnels. The lake created by the dam is 130 miles long, 16 miles wide at its widest, and 220 feet deep at its deepest.
The U.S. Army Corps of Engineers build Fort Peck Dam initially for flood control, irrigation, navigation, and domestic water supply. Hydroelectric power generation and recreation were later authorized for use. Two


2017 Volume 10 Issue 4 Pages 378-384
In consideration of the particle features and behaviors, the Computational Fluid Dynamics (CFD)-Discrete Element Method (DEM) coupled method has been applied to simulate the liquid-solid flows in the centrifugal pump with crystallization phenomenon. The crystal particles tend to distribute more uniformly in the inlet section and enter the impeller along the pressure sides of the blades with a moderate rise in velocity. Particle number density is different at different regions in the impeller passages with the characteristics of small density near suction sides and large density near pressure sides. In addition, large crystal particles are mainly located near the pressure sides and small crystal particles predominantly appear in the region near suction sides. The relative velocity magnitude of flow near the impeller inlet tends to be higher than that of crystal particles, while the velocities of the solid particles are substantially higher than liquid phase at the outlet.
This article cannot obtain the latest cited-by information.


Houziyan is a 1,700MW hydro power project. It is located on Dadu river/basin in Sichuan, China. The project is currently active. It has been developed in multiple phases. Post completion of construction, the project got commissioned in 2016.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||1,700||1,700||–||Active||Sichuan, China||Guodian Dadu River Hydropower Development|
The project was developed by Guodian Dadu River Hydropower Development. GD Power Development, China Energy Investment and Sichuan Chuantou Energy are currently owning the project having ownership stake of 69%, 21% and 10% respectively.
The hydro reservoir capacity is 706 million cubic meter. The net head of the project is 130m. The project generated 7,015 GWh of electricity.
The project got commissioned in 2016.
Houziyan (Houziyan Phase I) is equipped with Harbin Electric Machinery turbine. The phase consists of 1 turbine with 425MW nameplate capacity.
Houziyan (Houziyan Phase II) is equipped with Harbin Electric Machinery turbines. The phase consists of 3 turbines, each with 425MW nameplate capacity.
Harbin Electric Machinery was selected as the generator supplier for the hydro power project. The project consists of 4 generators.
About Guodian Dadu River Hydropower Development
Guodian Dadu River Hydropower Development Co Ltd develops, constructs and operates hydroelectric power stations. The company supplies electricity. Guodian Dadu River Hydropower Development is headquartered in Chengdu, Sichuan, China.
All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.


Dover Western Docks Revival Project Kicks Off
The first stage of construction works on the Dover Western Docks Revival (DWDR) development project starts today, according to the Dover Port.
The port announced that this major stage of the construction program is now officially underway and is scheduled to be completed at the end of 2018.
As the result of these works there will be some changes to the seafront area to establish the construction zone from 7th February 2017, reported the port.
The port added that this will affect both the Esplanade, Union Street, the waterfront and harbor and require the closure of the Esplanade at Cambridge Terrace in order to facilitate the beginning of work on the navigation channel required to connect the Wellington Dock to the new marina.
From Spring 2017 dredgers will be operational within the harbor prior to the start of piling necessary for the construction of the new cargo berths and marina.
Overall, the project includes the design and construction of two new berths including quay walls and land reclamation, a new marina pier, the marina curve, navigation channel and new lock gates, bascule bridge and capital dredging work.
VSBW, a joint venture between VolkerStevin and Boskalis Westminster, will deliver the marine structures and bridge works.


Work on the S. Maradhoo Harbor breakwater reconstruction scheme is nearing its completion, with overall 92% project progress, the Maldives Transport and Contracting Company Plc (MTCC) reports.
“Revetment works for the project are currently ongoing, with 65% completion. We also completed paving works of 1,975 sqm needed for the project in June 2020,” the company stated.
The S. Maradhoo harbor breakwater reconstruction project consists of the removal of existing rock boulder breakwater; dredging operations of 18,873cbm; construction of a 340m revetment; a 419m quay wall and bridge construction.
The estimated value of the project is $1.6 million.
The project was awarded to MTCC on June 30, 2019 with subsequent mobilization of equipment undertaken on November 3, 2019.


water pump / submersible
The submersible drainage center-line pump JC 6 is ideal for pumping water and dirty water mixed with light abrasives. When delivered to a site you can start using them right away. The low weight and compact design ensure convenient transport, handling, and installation. Head max 40 feet, flow max 63 gpm.


DRAGON plastic horizontal centrifugal pumps are high performance pumps operated by a direct-drive electric motor for fast fluid transfer and drainage with flow-rates ranging from 6 to 40 m3/h.
The special semi-opened impeller design allows continuous pumping even with dirty fluids with apparent viscosity up to 500cps. and small suspended solids.
DRAGON centrifugal pumps feature a solid pump casing and a lantern for connecting the electric motor and inspection of the mechanical seal.
The semi-opened impeller is fitted to the pump shaft that is integral with the drive shaft of the electric motor.
The shaft mechanical seal is housed at the rear of the impeller.


Located near Patan, in Maharashtra’s Satara district, close to the Koyna River, the Koyna Hydroelectric Project is India’s largest completed hydroelectric power plant with a capacity of 1,960MW.
Which is the first hydroelectric project in India?
The 4.5 megawatt hydroelectric power station near Sivasamudram falls of the Cauvery in Karnataka was the first major power station in India.
What are the top 3 countries using hydroelectric power?
Top five hydropower producing countries in the world
- China – 341.1GW. With a total capacity of 341.1GW in 2017, China is the leading producer of hydropower in the world. …
- US – 102GW. …
- Brazil – 100GW. …
- Canada – 81.4GW. …
- Russia – 51.1GW.
Which state is the largest producer of electricity in India?
The state of Maharashtra is at the top position in installed electricity generation capacity in India.
Who built Koyna Dam?
Hint: The Koyna dam was built by the Maharashtra government. After the Ganga, Godavari and Brahmaputra, the river is India’s fourth largest river in terms of water inflows and river basin area. Before entering Telangana State, it flows through the state of Karnataka.


TIP: It is strongly recommended that an automatic back-washable sand filter, G.A.C. filter and a water softener is installed inline before any Commercial R.O system.
Commerical Reverse Osmosis:
CL 300- 600 (1100 Lt/Day – 2200 Lt/Day)
Standard Features: TFC Membranes. Three pre-filtration stages (5u Sediment removal G.A.C Carbon1u Sediment removal). High & Low pressure gauges. Product & reject flow meters. High & Low pressure cut-off switch with solenoid valves. High flow booster pump. Water quality monitor.
CL 1500 – 3000 (5500 Lt/Day – 11000 Lt/Day)
Automatic LCD mini computer with water flush and backwash.Drain Water Flow Meter.Pure Water Flow Meter.Inlet Water Pressure Gauge.Operation Pressure Gauge.Inlet Water Pressure Protection Switch(Run Dry Protection).20″ GAC Filter. 20″ 5 micron sediment filter.Booster Pump.Return Water Control Valve.Solenoid Valve For Inlet Water.Solenoid Valve For Auto Flush.
Pressure control valve.4040 Membrane Housing(Stainless Steel)
|3 x Pre-filter stages|
|High & Low pressure gauges|
|Product & reject flow metersIntergrated membrane cleaning|
|High & Low pressure cut-off switch with solenoid valve|
|High flow booster pump|
|Water quality monitor|


The Nepal Goverment, thought the Department of Electricity Development, has announced that two hydropower projects to be developed in far-western Nepal have achieved the financial closure. Two consortiums have signed agreements to fund the construction of the plats with a US$111.4 million financing package.
One of the projects is the 15.33 MW Kalanga hydropower project located on the Kalanga River in Sukunda. The total project investment is estimated at Rs2.80 billion (US$41.7 million). Kalanga Hydro P LTd. is the project developer and the financing consortium includes: NMB Bank, NIC Asia Bank, Civil Bank, Janata Bank Nepal, Deva Bikas Bank and Jyoti Bikas Bank.
The second project comprises the Upper Kalanga hydroelectric project, which is currently under development by Sanigad Hydro Pvt. and has a projected capacity of 38.4 MW. This project involves a run-of-river plant with a gross head of 585.5 m, which is expected to generate around 219.3 GWh per year.
The total project investment is estimated at Rs4.74 billion (US$70.6 million). It will be financed by a consortium formed by Machhapuchre Bank, Rastriya Banijya Bank, Nepal Bank, NCC Bank, Sunrise Bank, Kumari Bank, Janata Bank and Civil Bank


Forte and Tablada, Inc. was responsible for Topographic Survey, Preliminary and Final drawings and specifications, Construction Inspection, Hydrologic & Hydraulic Study, and permitting for drainage improvements to Seymourville Canal in Plaquemine. The design replaced the CMP culverts at Plaza Drive to improve the capacity of the existing system. The corrugated metal pipe was replaced with box culverts and the canal between Plaza and Tenant Road was lined with concrete to increase drainage capacity. This project was funded through HMGP funds.
In addition to increasing the drainage capacity of the channel, it was necessary to provide a lined channel due to previous erosion issues and erosion concerns related with constructing an earthen channel with the steep slopes necessary (2H:1V). It was determined that using a slope stabilization product would appropriately mitigate future erosion issues while providing the stability necessary for a successful project. As this was a Hazard Mitigation Grant funded project we were able to construct a project using a hardened channel that greatly reduces the likelihood for future channel erosion issues as well as a project with optimized flow for the modified route.


Client: Utilities Kingston
Location: Kingston, Ontario
Size: 35 MLD
JLR was selected to undertake a Class Environmental Assessment (EA) and to provide design and contract administration services for a new treated water storage reservoir and pumping station for the west end of the City of Kingston. JLR was the Prime Consultant for the Class EA and for the design and construction of an 8 million litre above-grade, glass-fused-to-steel storage reservoir and a pumping station with a firm capacity of 35 MLD. The project also incorporated two standby generators, a stormwater detention pond, and a new electrical service to the site.
Other Water Storage Facilities Projects
Hawkesbury Standpipe Rehabilitation


Hand pumps are designed to match the output pressure requirements of HYPRESS heads and cutters. Each pump is equipped with a built- in， factory set pressure release valve with audible click to signal completion of crimp cycle.
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• Save time with quick disconnect hydraulic ftting
• High quality crimps provided with built-in， factory set pressure release valve and audible click to signal completion of crimp
• 5-year limited warranty


Hopkins, TX810 PM CDT Tue Mar 20 2018
The Flood Warning continues for
The South Sulphur River Near Cooper.
* At 0715 PM Tuesday the stage was 17.56 feet.
* Flood stage is 16 feet.
* Minor flooding is occurring and it is expected to continue.
* Forecast...The river will continue rising to near 18 feet by
Wednesday after midnight and remain above flood stage for the next
few days. Additional rises may be possible
LAT...LON 3337 9567 3341 9556 3341 9549 3330 9548


Pratibha Industries Limited is engaged in the sale of construction materials. The Company operates through engineering, procurement and construction (EPC) segment. The Company is engaged in designing, engineering and execution/construction of complex and integrated water transmission and distribution projects, water treatment plants, elevated and underground reservoirs, mass housing projects, commercial complexes, pre-cast design and construction, road construction and real estate. It provides water sourcing solutions covering development of bulk water supply, transmission main, augmentation of existing water supply schemes for urban and rural, and water distribution and metering solutions. It is involved in infrastructure development, including design and construction of railway stations. Its projects include Elevated Service Reservoir at Meerut; Tata Housing Residential Project at Kalyan (Maharashtra), and Raheja Universal Madh, Malad (Mumbai), among others.


Hydropower project Current Affairs, GK & News
The Union Cabinet recently approved the Ratle Hydropower Project of 850 MW. The cabinet has nodded to an investment of Rs 5,281.94 crores in the project. The project is located in River Chenab. About the Ratle Hydropower Project It is a joint venture of Jammu and Kashmir State Power Development Corporation and National Hydroelectric power ..
Category: Economy & Banking Current Affairs
India and Nepal recently signed the financial closure of Arun-III, which is the largest hydropower project of the country. The 900 MW hydropower project is under construction in Nepal, with an estimated cost of $1.04 million. The project, which is to be built with the financial assistance from India, is to be completed in 5 ..


AFRY India says it received a letter of award from Greenko Energy Projects Ltd. to provide detailed design engineering services for the 1,200-MW Pinnapuram Integrated Renewable Energy Pumped Storage Project in the southern part of India,
AFRY India says this is a first-of-its-kind pumped storage project to be developed by an independent power producer in India. The project is funded by multi financial institutions and equity partners from India & the Middle East. The total contract value, awarded in March, is about US$2.5 million, and the project duration is about 36 months.
The Pinnapuram project is located in Pinnapuram village of Andhra Pradesh state. The project has upper and lower reservoirs impounded by 9.6-km-long, 42-m-high rockfill dams, a power intake, pumping intake, six tunnels and penstock pipes, and a subsurface powerhouse complex containing eight variable speed reversible turbine-generator units.
Greenko is a renewable energy owner and operator in India. The company has projects under construction with licensed capacity of 584.1 MW, comprising two wind projects with a licensed capacity of 160 MW, six hydro power projects with a licensed capacity of 244.1 MW and six solar energy projects with a licensed capacity of 180 MW. There are also six hydro projects under active development with a total licensed capacity of 369 MW. And the company is constructing two integrated renewable energy storage projects (IRESP), Pinnapuram and the Saundati Pumped Storage Project, with a total pumped storage capacity of 2,460 MW. The IRESPs are expected to harness the power of solar and wind resources with digitally connected storage infrastructure to provide scheduled and flexible power to the grid.
Per Greenko’s website, when completed Pinnapuram will feature the 1,200-MW pumped storage powerhouse, as well as a 2,000-MW solar plant and a 400-MW wind farm.
AFRY is an engineering, design and advisory company.


Roads to close as levee work begins
Corps of Engineers work to enlarge levee
Portions of Mississippi Highway 465 in Warren and Issaquena counties will be closed as the Army Corps of Engineers works to complete a Mississippi River levee enlargement project.
Authorities told The Vicksburg Post that the levee roadway near Albermarle Lake and Goose Lake Road will be barricaded on the south end at intersection of Goose Lake Road and Mississippi 465 and on the north end it will be barricaded where the highway ramps up onto the Mississippi River Levee.
Another area affected by the project is near Lake Chotard and Laney's Boat Camp. Roads there were blocked the week of Aug. 18.
Road work is expected to be completed during the fall and the levee project is scheduled to be completed in late summer 2015.


Elizabeth Street, Tanunda - Drainage upgrade project
- Elizabeth Street, Tanunda (view map)
- Anticipated completion date
- 31 May 2022
Council has completed the stormwater drainage upgrade to improve the management of stormwater within the Council area and reduce the risk of stormwater flooding of residential properties and businesses.
This drainage upgrade project involved installation of a new underground drainage system from Langmeil Road to the North Para River along Elizabeth Street.
Maria Street, Tanunda - Drainage upgrade project
This drainage upgrade project involved upgrading the existing stormwater drain from Maria Street to the property boundary approx. 150m west of Maria Street.
The Big Project - Tanunda Recreation Park Redevelopment
- The Big Project
- Works in progress
Current works at the Tanunda Recreation Park include construction of a Junior Oval, widening of the Main Oval, new Inclusive Playground and new Clubrooms and Changerooms.
Smyth Road, Tanunda - Bridge Remediation
- Plan and design phase
Repair works are being undertaken on Smyth Road Bridge in conjunction with Light Regional Council.


As construction efforts at the Lake Oroville spillways remain focused on repairing and reconstructing the gated flood control spillway, also known as the main spillway, roller-compacted concrete is placed to fill the large void between the upper and lower chutes of the spillway. Crews also install forms in preparation of pouring concrete for the spillway walls.
Construction of the 1,050-foot middle section of the spillway chute, including filling in the two scour holes, is now about 20 percent complete, with approximately 60,000 cubic yards of roller-compacted concrete placed.
Placement of reinforced, structural concrete is 25% complete. Crews have placed 25 slabs of structural concrete so far. When it is complete, there will be 1,220 feet of spillway chute with structural concrete – 870 feet on the upper portion of the spillway and 350 in the lower portion of the spillway.


Objective of this research project is to develop a mechanical model for the shear strength of thick reinforced concrete slabs without shear reinforcement. The model is aimed for practical use and considers also distinctive features of hydraulic engineering so that the shear strength of existing hydraulic structures can be more accurately estimated.
|Effective start/end date||1/08/13 → 31/12/19|
Explore the research topics touched on by this project. These labels are generated based on the underlying awards/grants. Together they form a unique fingerprint.


Yunnan Sanjiangkou is a 62MW hydro power project. It is located on Supa river/basin in Yunnan, China. The project is currently active. It has been developed in multiple phases. The project construction commenced in 1993 and subsequently entered into commercial operation in 1993.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||62||62||–||Active||Yunnan, China||Yunnan Baoshan Keyuan Silicon Electric|
The project is developed and owned by Yunnan Baoshan Keyuan Silicon Electric.
The hydro power project consists of 2 turbines each with 15 MW nameplate capacity and 2 turbines each with 16 MW nameplate capacity respectively.
The project construction commenced in 1993 and subsequently entered into commercial operation in 1993.
Power Purchase Agreement
The power generated from the project is sold to China Southern Power Grid under a power purchase agreement with a contracted capacity is 172.91GWh.
The power generated from the project is sold to China Southern Power Grid under a power purchase agreement with a contracted capacity is 173.91GWh.
About Yunnan Baoshan Keyuan Silicon Electric
Yunnan Baoshan Keyuan Silicon Electric Co., Ltd is a china based renewable energy generation company currently operating Sanjiangkou Hydro-electric Power Station Expansion Project located in China.
All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.


Product Profile of Duplex Low Pressure Filter
Duplex low pressure filter is designed as inline mounting filter with flow capacity of upto 450lpm. The low pressure filter is provided with 1 - 1/2" connections. The low pressure filter can handle maximum pressure of 40 to 160 bar. The duplex low pressure filter is fitted with nitrile/ viton/ epdm seals.
Key Features of Duplex Low Pressure Filter
- Designed as inline mounting filter with flow capacity of upto 450lpm.
- Self-locking connection mechanism prevents accidental disconnection caused by vibration
- Can be connected with up to 50 bar pressure in each hydraulic hose line
- Screw connection mechanism avoids use of locking balls and so eliminates the risk of Brinelling
- Modular construction allows numerous thread/connection options as standard
- Bowl made of Carbon Steel.
- Bowl Externally painted
- Nitrile/ Viton/ EPDM seals.
Product Specification of Duplex Low Pressure Filter
- Working Pressure Rating:Up to 450 Bar
- Burst Pressure Rating:Up to 1800 Bar
- Connections:1 - 1/2"
- Maximum pressure of 40 to 160 bar:1 - 1/2"
- 50 lpm to 450 lpm:
- Threads:1/4, 3/8, 1/2, 3/4, 1,11/4, 11/2 inch
- Size:1/4, 3/8, 1/2, 3/4, 1,11/4, 11/2 inch
- -20 degree C to +100 degree C:Flow Capacity


2-32 PERIODIC MAINTENANCE
Brake Fluid Level Inspection
Check that the brake fluid level in the front brake reservoir
[A] is above the lower level line [B].
Hold the reservoir horizontal by turning the handlebar
when checking brake fluid level.
If the fluid level is lower than the lower level line, fill the
reservoir to the upper level line [C].
Check that the brake fluid level in the rear brake reservoir
[A] is above the lower level [B].
If the fluid level is lower than the lower level line, remove
the reservoir cap and fill the reservoir to the upper level
Follow the procedure below to install the brake fluid reser-
voir cap correctly.
First, tighten the brake fluid reservoir cap [B] clockwise
[C] by hand until the resistance is felt fully; then, tighten
the cap an additional 1/6 turn [D] while holding the brake
fluid reservoir body [A].
Change the brake fluid in the brake line completely
if the brake fluid must be refilled but the type and
brand of the brake fluid that is already in the reser-
voir are unidentified. After changing the fluid, use
only the same type and brand of fluid thereafter.
Recommended Disc Brake Fluid
Brake Pad Wear Inspection
Remove the brake pads (see Brakes chapter).
Check the lining thickness [A] of the pads in each caliper.
If the lining thickness of either pad is less than the service
limit [B], replace both pads in the caliper as a set.
Pad Lining Thickness
4 mm (0.16 in.)
5 mm (0.20 in.)
1 mm (0.04 in.)


River House construction begins
Mike Holmes and The Holmes Group have started the construction of River House and have installed silt fencing. Tree hoarding and the pool has been covered. The deep foundations designed to resist future shore erosion are in the ground. The detached garage and the house are being built at the same time.


OMAHA, NE – In response to recent heavy rains and runoff in southeastern South Dakota and northwestern Iowa, releases from Fort Randall and Gavins Point dams will be reduced, the U.S. Army Corps of Engineers announced today.
"The reduction in releases will correspond with high flows on the unregulated tributaries, particularly the James, Big Sioux and Little Sioux Rivers, which enter the Missouri River downstream of Gavins Point Dam," said John Remus, chief of the Corps' Missouri River Basin Water Management Division.
Fort Randall releases were reduced from 55,000 cubic feet per second (cfs) to 47,000 cfs Thursday morning. Fort Randall releases are scheduled to be further reduced over the next couple days.
"The extent of the Fort Randall release reduction will be based on how the runoff from yesterday's rain impacts the Gavins Point reservoir," added Remus.
Gavins Point releases will be reduced from 58,000 cfs to 46,000 cfs over a 3-day period starting on Friday. The releases will be reduced 4,000 cfs a day. The Gavins Point releases will be maintained at 46,000 cfs until the Missouri River at Sioux City, Iowa, peaks, which is expected to occur early next week.
Once the Missouri River peaks at Sioux City, the Corps plans to increase Gavins Point releases back to 58,000 cfs to continue evacuating the stored flood waters from this last spring and summer.
Weekly updates on basin conditions, reservoir levels and other topics of interest can be viewed here: http://www.nwd-mr.usace.army.mil/rcc/reports/pdfs/weeklyupdate.pdf.


Authors: AYŞEGÜL AKSOY, TERESA B. CULVER
Abstract: Two different optimal design models are used to compare pulsed and continuous pumping remediation schemes for mass transfer-limited aquifers. All optimal design models couple a genetic algorithm with a flow and transport simulation model. The static pulsed pumping design model compares pulsed pumping with multiple management periods to continuous pumping for the same total remediation time. Results show that, depending on the initial mass of contaminant mass, it may be possible to cleanup the aquifer with costs similar to those of continuous pumping with less total pumping time. Although higher pumping rates are required for pulsed pumping, the total volume of water extracted decreases and the mass removal efficiency improves. The dynamic pulsed pumping design model compares pulsed and continuous pumping for the same pumping effort defined in terms of pumping days. By adjusting the total remediation time and using flexible management time lengths and pumping rates, considerable savings in both operating and capitals costs are achieved. Despite the longer remediation time, significantly less water is pumped out with increased mass removal efficiency.
Keywords: Pulsed pump-and-treat, Genetic algorithms, Optimization, Aquifer remediation, Mass transfer-limitation
Full Text: PDF


The multi-purpose Hirakud Dam across the river Mahanadi was constructed for flood control, irrigation and power generation. Hirakud Dam is a composite structure of earth, concrete and masonry. The main dam having an overall length of 4.8 km spans between hills Laxmi-Dungri on left and Chandli-Dunguri on the right. The dam is flanged by 21 km log earthen dykes, both on left and right sides to close the low saddles beyond the abutment hills. It has the distinction of being at one time the longest earth dam in the world, being 25.8 km long with dams and dykes taken together. It also has the rare distinction of forming the biggest artificial lake in Asia with reservoir spread of 743 sq km at full reservoir level. Hirakud dam intercepts 83400 sq. km of Mahanadi catchments. The reservoir has live storage of 4823 million cubic meters with gross storage of 8136 million cubic meters.
Water from dam enters the turbine through trash-rack, intake structure and penstock and gets discharged to the tailrace through draft tube. To control the flow, hydraulic intake gates are provided for each machine.
The main features of stage I are dam and appurtenant works, canal system and power generation & transmission. Four generating units with installed capacity 123 MW (2x37.5 + 2x24) were completed in PH-I at Burla.
The main features of stage II are Power channel, power generation at PH I & II and transmission system. Two more generating units with installedcapacity of 75 MW) 2 x 37.5) were added n power house Burla. Three generating units with installed capacity of 72 MW (3 x 24) were completed in power house-II at Chiplima. The work under stage II was started on Jan. 1957 and was inaugurated by late Dr. A. N Khosal.
The work under stage III covers the installation of 7th Unit (37.5 MW) at Power House-I, Burla. The work started on 1st December' 1982 and completed on 13th September' 1990.
N.B. : As a part of restructuring, Chiplima Power House (Power House No. II) has been separated from HPS, Burla, with effect from 01.07.2009 and renamed as Chiplima Hydro Electric Project, Chiplima. Similarly, the Burla Power House (Power House No. I) has been renamed as Hirakud Hydro Electric Project, Burla.


GRYB Quick Hitch “Pin Grabber” Structure
The “Pin Grabber” Structure is made of heavy duty steel and is available with a hydraulic system and dual safety system in case of hydraulic system pressure failure. It is also available with a semi manual mechanical system, and a spring system for automatic coupling multi center/center for all attachments. It is equipped with a manual safety restraint system ensuring safe us on all excavation work.
|Available for excavators from 7.5 tonnes to 85 tonnes
|Compact Design, dual safety design


Single Impeller Shower Pump
Must not be connected to mains water supply.
for use with electric showers in low water pressure areas.
Pump switches on / off automatically as the shower is operated.
Water connection: 15mm dia pipe, Flow Rate 11.5 Litres ( 2.53 gallons ) per minute. Maximum pressure at maximum flow 1.22 bar - ( 18 PSI ) equivalent to 41 foot head of water.
T450 PACK CONTENTS.
- Single impeller pump, flow switch.


The Nizhne-Bureiskaya hydropower plant with a capacity of 320 MW is part of the Bureisky energy complex in the Amur Region of Russia. The power plant is a counter-regulator to the fully-operational Bureiskaya hydroelectric power facility. It is located on the Bureya River, near the village of Novobureisky, 90 km downstream of the Bureiskaya power plant.
The project operator is RusHydro, the project construction cost was 31.318 bln rubles (USD1 billion as of 2010). Local power engineering company Power Machines was the core machinery supplier.
In January 2019, RusHydro and Russian solar power company Hevel agreed to build a 1.275 MW solar power plant on the territory of the Nizhne-Bureiskaya facility; the commissioning is scheduled for the end of 2019. The PV power plant will reduce the cost of electricity for local needs.


Contract signed for the construction of water supply network in Paramythia
On Friday, February 11th 2022, was signed the contract for the construction of water supply networks in Paramythia, Municipality of Souli, of a total budget of € 2.227.419,35. The contract was signed between the Mayor of Souli, Mr. I. Karagiannis, and the Chairman and CEO of TEDRA Group, Mr. G. Tolios.
The execution time of the project is estimated 18 months starting today.


GM-X Automatic Booster Pumps
The GM-X Automatic Booster Pump incorporates self-printing "jet" pumps with pressure vessels (equipped with butyl diaphragms), pressure gauges, ready-assembled non-return valves and adjustable pressure switches.
The GM-X automatic booster series features self-printing "jet" pumps with pressure vessels (equipped with butyl diaphragms), pressure gauges, adjustable pressure switches and ready-assembled non-return valves. The pumps have 304 stainless steel bodies and are equipped with thermoplastic venturis and impellers. They feature stainless steel shafts, fitted with carbon ceramic mechanical seals, and have IP44 rated motors. These models feature 25 litre pressure vessels, in 304 stainless steel, with butyl diaphragms.
These pumps are designed to pump clean water to a maximum temperature of 35ºC. Maximum recommended suction lift is 8 metres. Suitable for industrial water boosting, washing systems, irrigation and for wash-down.
|Approx. Delivery Time


The Kandaleru Dam is located some 60 Kilometers away from Nellore enroute to Rapur. This dam is the world’s biggest earth dam with a capacity of 68 TMC’s water storage and is spread over an area of about 11 sq.km. The dam is constructed under the Telugu-Ganga Project which is intended to supply the waters of River Krishna to Chennai in the state of Tamil Nadu. River Krishna flows across the Gudur and originates in Velugonda hills. The Dam and its surrounding area look quite beautiful with lush green forests.


Youth of the great river.. (1959)
Availability of videosources
Needs clarification of possibility of digitizing in HD.
AnnotationOn the construction of the Stalingrad hydroelectric power station
The Volga River.
Construction of Stalingrad (Volga) hydroelectric power.
Khrushchev on construction.
The first stage hydropower station.
Street, town square.
Vessel traffic in the old channel of the Volga.
Key wordsEnergy. River transport. City.


River Stage Definitions
MONITOR - FLOOD - DANGER STAGES
CROSS SECTION - TYPICAL NON-LEVEED STREAM
MONITOR STAGE - The Stage at which initial action must be taken by concerned interests (livestock warning, removal of equipment from lowest overflow areas, or simply general surveillance of the situation). This level may produce overbank flows sufficient to cause minor flooding of low-lying lands and local roads.
FLOOD STAGE - The Stage at which overbank flows are of sufficient magnitude to cause considerable inundation of land and roads and/or threat of significant hazard to life and property.
CROSS SECTION-TYPICAL LEVEED STREAM
MONITOR STAGE - The Stage at which patrol of flood control project levees by the responsible levee maintaining agency becomes mandatory, or the Stage at which flow occurs into bypass areas from project overflow weirs.
PROJECT FLOOD STAGE - The Stage at which the flow in a flood control project is at maximum design capacity (U.S. Corps of Engineers "Project Flood Plane"). At this level there is a minimum freeboard of 3 feet to the top of levees.
DANGER STAGE - The Stage at which the flow in a flood control project is greater than maximum design capacity and where there is extreme danger with threat of significant hazard to life and property in the event of levee failure. This is generally 1 foot above project flood stage.


Reverse Osmosis desalination multistage centrifugal pump is just high pressure pump which is HD(RO) type used in desalination,
In desalination units, the temperature has changed during the year and the pump outlet pressure has changed from 4.5Mpa to 6.0Mpa. The device use VFD control technology, therefore it can save 900,000kwh a year. It uses a small margin motor for configuration in order to improve the efficiency of pumpset. The DN150 size of multistage pumps is coupled with 550kw. The performance comply with KSB multitec pumps.
The bigger shaft, short cantilever, double spiral constructure, and the radial force is balanced to improve the reliability of the pumps. The efficiency of pump is up to 80%. The sliding bearing of multistage pumps adopt the German West Gerry Isostatic pressing molding material, of which The shore hardness is up to 70, and high strength, good abrasion resistance, and the isotonicity is good. The water lubricated bearing make simple the structure of the pump and lower down the cost of the pump. The span life for the pump is 20 years, and the service time for bearing and mechanical seal is 10,000 hours.
The design of RO high pressure pump is optimized for every spare part. The sliding bearing with self lubrication by medium is conductive to the formation of the short bearing spreading.and no oil/grease lubrication for the bearing ensure the purity of sea water. It needs only one mechanical seal, therefore it reduces cost and inventory of the spare parts.
RO high pressure pump running smoothly, and in other words, the long life of each components will reduce maintenance cost to minimum, with new development of various corrosive-resistant material, RO pressure pumps has been designed as special durable pumps.
The high pressure pump is used in RO desalination is a new type large scale corrosion-resistant multistage pumps. Its design of structure need to meet the API 610 std and pressure rating of the pressure case of pump is 600 lbs. It is a multistage pumps with the structure of radially split, axial suction and radial discharge, and the use of sliding bearing makes the structure simple and volume and the weight has been reduced.
Our company RO high pressure pump is new multistage high pressure pump, the efficiency of the first stage impeller has increased about 4% because of non-clog suction compared with the go-through shaft construction, To use the advanced turbine impeller 3D flow calculation program of NREC company. To make analysis on velocity and pressure distribution of the fluid by fluid analysis software.
1) The structure is simple, only wet parts no external support structure.
2) Only one mechanical seal, the operation reliability has been greatly.
3) Axial dimension is smaller, and its length is about 2/3 of the length of traditional structure. In this case the same rigidity, it can reduce the shaft diameter. In the precondition of the equivalent diameter of the impeller entrance, in order to improve the efficiency, the diameter of the impeller entrance and the impeller ring size can be smaller.


Mr Malcolm Barker
Senior Technical Director - Dams, GHD
Malcolm has 48 years of civil engineering experience in the design, construction and safety of dams, hydropower projects, canals and tailings dams. He has participated in many dam projects in Australia, Canada, Zimbabwe, South Africa, Malaysia, Papua New Guinea and China. He has been involved in the design and construction of Embankment, Rockfill, RCC and concrete dams and HEP projects as well as Tailings dam planning and design for upstream and downstream construction and application of risk assessment for upgrade designs. Malcolm has also served in different capacities in the Australian National Committee on Large Dams (ANCOLD) and was one of the members revising the 2003 Risk Assessment Guidelines. Malcolm is a seconded member of the ICOLD Levee Technical Committee.


Diamond ready for the Anclote River dredging
Diamond Services Corporation is about to begin work on the Anclote River maintenance dredging project in Florida.
According to the company, the Diamond Dredge 6 [D-6] & the Lady Lafon are headed to Pinellas & Pasco County to perform maintenance dredging for the Army Corps’ Jacksonville District.
Project includes maintenance dredging of the Anclote River channel & turning basins in the project areas to 9 feet with the 100 feet wide channel.
The dredged material will be transported to and placed in a temporary upland Dredged Material Management Area (DMMA) to be constructed as an earthen-diked containment basin using barrow onsite and a weir dewatering system.
“This project consists of two primary components,” said Project Manager, Geoffrey Klug. “First the construction of a temporary dredged material management area, or DMMA, and second dredging a total of approximately 25,000 cubic yards of shoal material from two small sections of the river channel and the federal turning basin.”
Overall, equipment to be utilized for this project consists of:
- B/V Diamond Dredge No. 6 “D6” [Bucket Dredge, 6 CuYd]
- T/V Lady LAfon [70′ Model Bow – 900 hp]
- Supporting hopper barges
- supporting misc. equipment


Yenen LPG Pump is a special pump that enters the turbine pump zero. The liquid fills the turbine around the pump from the inlet of the pump and the turbine gives motion to the fluid between the power it receives from the engine and the fins. When the liquid completes one cycle in the pump, it turns towards the outlet of the pump. When we increase the power of the electric motor, pumping power and differential pressure increase. But at this time, the capacity of the pump is reduced. Differential pressure is the difference between the pressure at the inlet of the pump and the pressure at the outlet.
The turbine is the only moving part of the pump and has no connection with the body. If liquids such as LPG or ammonia are used in the eaten LPG pump, there is no practical wear on the turbine due to the lubrication feature of these products.
Pumping liquid volume is one of the most difficult pump applications. Unlike other pump applications, its design, manufacture, installation and operation require more attention.
Yenen Lpg Pump is especially suitable for liquid products. It is very easy to maintain and operate. Spherical graphite casting is used in the production of pressurized parts.
The turbine is mounted firmly on the shaft. Thus, we can easily change the turbine piping system and electric motor without any tools.
We can easily replace the packing and O-Rings turbine piping system and electric motor without the need for any tools.
- Easy to Use and Maintain
- Long life
- ATEX Approved
- Inlet Connection: DIN2635 (Optional: 1 ½’’ ANSI Flange)
- Outlet Connection: DIN2635 (Optional: 1’’ ANSI Flange)
- Flowrate: 125 lt / min @ 7.5 bar
- Max Working Pressure 27.6 bar
- Max Differential Pressure: 17.2 bar
- Ambient Temperature: -30°C / +90°C
- Max Motor Capasity: 15 kW (20 HP)
- 5.5 kW, rpm: 2880 @ 50 Hz or 3450 @ 60 Hz


Dutch Government Presents ‘Afsluitdijk’ Plan
The Dutch government has presented its master plan for a complete reinforcement of the 32 km long closure dam, the Afsluitdijk.
The reinforcement is necessary as the seaside slope of the 80 years old closure dam is no longer strong enough to meet flood safety standards.
The master plan also includes construction of a 5 km long artificial fish migration river and the construction of a new pumping station. With a capacity of 400 m³/s, the station will be the biggest in Europa.
Master plan for the Nieuwe Afsluitdijk does not specify construction details of the new dam, it only shows the basic requirements. In a later phase, the final design will be determined by the government in close consultation with the contractor.
The project is expected to start in 2017 and has been budgeted for €850 million.


Trinity PUD and the USBR intend to boost the power generating capacity at Lewiston Dam, California from the existing 350 kW. Sunrise Engineering was selected to optimize the power generating capacity (determined to be 2.2 MW) while also attending to important Trinity River fisheries issues.
Sunrise performed pre-design studies to determine project feasibility, evaluated impact to the environment though NEPA studies, developed design plans and specifications, and will perform construction administration and testing in full compliance with USBR requirements. The design effort involved geotechnical, hydraulics, structural, powerhouse and electrical/instrumentation components. Design challenges included a new intake structure to be constructed and anchored underwater, a new 96-inch diameter siphon penstock around the left abutment of the dam, fractured rock excavation, limited area of construction at the new powerhouse location, and interconnection of the bypass system with the existing 48-inch penstock.


The Corps of Engineers has awarded ABB Inc. a $2.4 million contract for replacement of five excitation systems at 525-MW Libby Dam on the Kootenai River in Montana.
The Corps seeks design, supply and installation of five excitation systems at Libby, including removal of existing static exciters, repairing the concrete floor and installing and testing new units. New units are to include automatic voltage regulators, power system stabilizers and power potential transformers.
Recently, ABB announced it has completed a comprehensive project to provide power equipment for the AmerenUE Taum Sauk pumped-storage hydro plant in Missouri.
ABB installed a complete integrated instrumentation, control and electrical (ICE) system package to help retrofit the AmerenUE 440-MW plant, allowing for improved functionality, reliability and modernization. The total project value was more than $11 million.
For more hydropower news and information, click here


Stage One of the Hells Gates Dam project includes the construction of the Big Rocks Weir, located approximately 26 kilometres north of Charters Towers. The weir will have a 10,000 megalitre capacity, which is approximatley double the capacity of the Charters Towers Weir, and is expected to be 188 metres wide and approximately 4.4 metres high.
The Big Rocks Weir project comprises of four main components:
- the weir and storage area
- a fishway
- a saddle dam, and
- access tracks.
|2018||The Federal Government allocated $54 million towards the Hells Gates Dam project, including $30 million for Stage One.|
|Aug 2020||The Big Rocks Weir Final Business Case was completed.|


- Range 0 to 700 bar
- Oil or Water operated
- High Pressure/Priming Selection
- Precise fine adjustment valve and controlled Vent
- Supplied with test hose
The PGS700 is a hand operated hydraulic pressure pump capable to generate calibration pressures up to 700 bar/10000 PSI.
The PGS700 hydraulic calibration hand pump can be used as a portable pressure calibrator in conjunction with our range of Digital Test Gauge or Analogue Manometers . It offers fine control and a unique priming/high pressure selector switch.