Three aspects of energy loss in centrifugal pump
The centrifugal pump is a kind of energy conversion machine, the energy conversion process must be accompanied by the loss of energy, and efficiency is the measure of this conversion. How to improve the efficiency of the pump and reduce the loss of energy? It is necessary to find out the loss of energy in the pump. The energy loss in the pump mainly includes the following three aspects:
1. Mechanical loss
It is mainly the friction loss (also known as disc loss) between the liquid and the outer surface of the front and rear cover plates of the impeller and the centrifugal pump cavity.
Disk loss accounts for a large proportion, even up to 30% of the effective power. The test shows that the disc loss is proportional to the third power of rotating speed and the fifth power of impeller outer diameter of the centrifugal pump. Therefore, the larger the outer diameter of impeller, the greater the disc loss. Although the disc loss is proportional to the third power of rotation speed, under a given head, with the increase of rotation speed, the outer diameter of impeller of centrifugal pump decreases correspondingly (it can be considered that the increase of pump speed doubles, the outer diameter of impeller decreases by half), and the disc loss decreases in the fifth power proportion. Therefore, with the increase of rotation speed, the disc loss does not increase, but decreases, which is the reason for the development of high-speed pump One.
2. Volume loss
A part of the liquid in the impeller of centrifugal pump leaks back to the impeller inlet through the clearance of the impeller sealing ring, which can not be effectively used, resulting in loss. Therefore, the smaller the clearance of the sealing ring is, the better. However, due to processing and assembly reasons, the smaller the clearance may form eccentric wear or jamming. The national standard has made special provisions for the clearance of various types of centrifugal pumps.
3. Hydraulic loss
The fluid in the overflow part of the centrifugal pump (from the inlet to the outlet) must have the loss caused by the change of speed and direction, which are the hydraulic loss. In order to reduce this part of the loss, in addition to improving the smoothness of the flow passage parts, try to select excellent hydraulic model
3、 Analysis of pump efficiency formula
What is the efficiency of a centrifugal pump? How about the formula?
Answer: it refers to the ratio of effective power and shaft power of the centrifugal pump. η = power of PE / P pump generally refers to the input power, that is, the power transmitted from the prime mover to the pump shaft, so it is also called shaft power of centrifugal pump, which is represented by P.
The effective power is the product of the lift, mass flow and acceleration of gravity.
PE = ρ g QH (W) or PE = γ QH / 1000 (kw)
ρ: Density of liquid delivered by pump (kg / m3)
γ: Gravity of liquid delivered by pump: γ = ρ g (n / m3)
g: Acceleration of gravity (M / s)
Mass flow QM = ρ Q (T / h or kg / s)
4、 General methods to improve centrifugal pump efficiency
Improve pipeline system and reduce resistance. The length of the pipeline shall be shortened and kept as straight as possible, and the flow rate shall be reduced to reduce the head loss along the pipeline; the number of gate valve, bottom valve, elbow, orifice plate and other components shall be reduced to reduce the local head loss. Reduce the surplus of water centrifugal pump outlet pressure to meet the requirements of pipeline system for outlet pressure.
Centrifugal Pump is the most widely used general-purpose machinery, but also a large consumer of electricity and energy, so improving the efficiency of the pump itself and the use efficiency of the pump plays an important role in energy conservation.
Improve the efficiency of the centrifugal pump itself
1. The blade extends to the suction port and thins, so that the liquid is affected by the blade in advance, which can reduce the outer diameter of the impeller, also can increase the length of the streamline in the blade passage, and reduce the relative diffusion; but the extension should be appropriate, too forward extension will make the area of the inlet et too small, so that the wall angle between the blade inlet and the blade cover plate will be smaller, but it will increase the hydraulic friction loss, squeeze the inlet flow channel, and affect the cavitation and efficiency All are unfavorable.
2. In order to reduce the diffusion loss, the ratio of the outlet area to the inlet area of the runner between the adjacent blades should be controlled between 1.0 and 1.3. If the ratio is greater than L.3, the flow channel will diffuse seriously and the efficiency will decrease.
3. The larger the hydraulic radius of the runner is, the better. Try to make the blade inlet section close to the square as much as possible to reduce the friction loss. From hydraulics, we know that the ratio of the cross-section area of the flow passage of centrifugal pump to the wet circumference is called the hydraulic radius, that is, the hydraulic radius - the cross-section area of the flow passage / the wet circumference. Large wetted perimeter, in fact, is the contact area between the liquid and the wall. When the cross-section of the flow passage is changed from an approximate square to a long and narrow rectangle, it is essentially to let the liquid flow through the gap of the long and narrow cross-section, so the resistance must be large.
4. Because of the large hydraulic loss of the curved diffusion pipe, the diffusion section with a slight bend close to a straight line is mostly used now. For the anti guide vane, its inlet angle and position in the circumferential direction shall be determined in combination with the outflow of liquid flow in the diffusion section. The principle is to form a continuous flow channel, so as to avoid the narrow inlet section of the anti guide vane, otherwise, eddy current and impact loss of centrifugal pump will be caused at the inlet of the anti guide vane.
5. For the multistage centrifugal pump, the impeller inlet is pre rotated (the outlet angle of the anti guide vane is less than 90). ）At the same time, the relative velocity diffusion is reduced when the outlet angle of the guide vane is less than 90. When the water flows into the impeller of centrifugal pump, there is a pre rotation, that is to say. 1≠0。
6. In order to make the "1vul" term in the theoretical head of centrifugal pump formula ht-u2vu2-lvul zero in the design, the outlet angle of the anti guide vane should be 90. For the last stage guide vane, the rotating component can be eliminated. However, experiments show that this is not good for efficiency and stable performance curve, especially for some low specific speed centrifugal pumps, in order to obtain the declining performance curve, the outlet angle of the anti guide vane should be less than 90. Usually at 60. ～80。。 Both ends of the blade should be thinner to avoid collision and eddy current loss.
Section of Blade Runner
7. Increase the width of impeller outlet of centrifugal pump, reduce the absolute speed of impeller outlet, and reduce the hydraulic loss in the water chamber.
8. Bevel the impeller outlet of centrifugal pump to reduce the length difference of front and rear streamline


PWP No. 4449DS
Rehabilitation and Construction of Sewage Rising Mains (Package 4) – Tuen Mun
Rehabilitation of about 1.9 km of rising mains and construction of about 1.3 km of new rising mains in Tuen Mun
The construction and rehabilitation works will adequately improve the reliability of the concerned parts of the sewerage network.
Consultants Management Division
Sewerage and sewage treatment
Under planning & design


To meet the requirements for the gorwing community, this project was undertaken and completed in 2006. Walker Projects completed the preliminary and detailed design drawings, approvals, tendering, construction inspection, and documents.
- investigate existing water, sewer and storm water infrastructure throughout paving area
- design 12,000 m2 commercial pavement structure
- design drainage improvements throughout the Village
Project Area: 12,000 ft²
Project Cost: $2.25 M


Afrikaans name: Wilgerivier
The source of the Wilge River is near the border between Free State and KwaZulu-Natal near Swinburne. The Wilge River ends when it flows into the Vaal Dam.
Sterkfontein Dam is on the Wilge River. Water in the dam is predominantly pumped from KwaZulu-Natal to help supplement the water supply in Gauteng.
Along its course the Wilge River is joined by the Meul River, Cornelis River and Liebenbergsvlei.


- Senninger PRLV Pressure Limiting Valve 200 kPa (30psi)
Pressure Regulating Limit Valves are designed to be used in place of standard pressure regulators to limit static (no flow) water pressure when a shut-off valve is used downstream from the regulation point.
- Senninger regulators maintain a constant preset outlet pressure with varying inlet pressures, which alleviates pressure differences that can cause an applicator’s area of coverage to change.
- Limits downstream pressure to no more than 15 psi (103 kPa) above regulated pressure rating during static (no flow) conditions
- 100% water tested for accuracy at Senninger
- Very low hysteresis and friction losses
- Preset operating pressure: 200 kPa
- Max inlet pressure: 862 kPa
- Flow range: 2.25 - 67.5 lpm
- Inlet connection: 20mm (3/4") BSP
- Outlet connection: 20mm (3/4") BSP


MADISON, SOUTH DAKOTA
Spanning across Park Creek along Center Street in Madison, SD, this box culvert project replaced an aging and deteriorating box culvert structure. With design and funding completed by SDDOT, the Sioux Falls Area SDDOT Office then hired Brosz to provide full construction engineering services. Services included construction administration, construction inspection, materials testing, construction staking, and project close-out.
After record-setting precipitation and scheduling delays, construction commenced in July 2020 and was finalized in November 2020. Project work activities and improvements included:
- Temporary channel diversion
- Retrofit of City of Madison water main below new box structure
- CIP 3-9’x6’ box culvert construction
- Reconstruction of historical rock channel wall with new concrete foundations
- Construction of improved sidewalk with pedestrian railing


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Around Town: Construction Report for John Hart Dam Generating Station Replacement Project
Drilling for the surge chamber at the John Hart Dam generating station replacement project has begun, along with blasting for the 1,575 metre power tunnel from the powerhouse to the reservoir and at the tailrace area. One sealing cell at the cofferdam is complete, and the other is still under construction.
Drilling, blasting and excavation for construction of the tailrace will continue through the month of October. The cofferdam is expected to be complete in December. Retaining walls will then be built and the area dewatered. Powerhouse vertical excavation is expected to be complete in March and concrete work will begin in April of next year.
Tree removal is almost complete for the construction access road and surge tank work area. Overburden will be removed in October to access the subgrade below and allow for continued construction and preparation for the surge tank.
For more information on the John Hart Dam generating station replacement project, visit the BC Hydro website.
Receive up-to-date information on building permits, tenders, proposed developments and construction news for the Comox Valley, Campbell River, Port Hardy, Powell River and more locations on the North Island.Click here for 4 FREE Issues


Province Advises Lake St. Martin Emergency Outlet Channel to Close
August 14, 2015
Manitoba Infrastructure and Transportation’s Hydrologic Forecasting Centre advises closure of the Lake St. Martin emergency outlet channel will begin this week. The targeted water level through the operation of the emergency channel has been reached within the time frame set out in the province’s temporary authorization from the federal government’s Fisheries and Oceans Canada, set to expire Aug. 31.
The channel was reopened last summer following unusually high rainfalls across the prairies in June of 2014.
The Fairford River carries Lake Manitoba waters into Lake Pinemuta and then into Lake St. Martin. The Dauphin River carries Lake St. Martin waters into Lake Winnipeg.
The current level of Lake St. Martin is 801 feet and is expected to drop to 800.1 ft. by freeze-up, within the desired operating range. The Dauphin River flow is 7,200 cubic feet per second (cfs) and is forecast to drop to 5,500 cfs by freeze-up.
The level on Lake Manitoba is 812.5 ft. and is expected to be about 811.8 ft. at freeze-up, within the operating range established by the 2012 Lake Manitoba/Lake St. Martin Regulation Review Committee. Flows on the Fairford River are currently estimated at 9,680 cfs and are expected to drop to about 5,000 cfs at freeze-up.
The emergency outlet channel was built during the 2011 flood to drain flood water from Lake St. Martin and Lake Manitoba. Rock fill will be pushed across the channel entrance to close off the flow of water from Lake St. Martin into the channel. In addition, environmental monitoring will take place during the closure process with continued efforts to minimize effects to local habitat.
A recent funding commitment of $495 million was announced to construct an additional outlet channel from Lake Manitoba to Lake St. Martin, and the conversion and enlargement of the Lake St. Martin emergency outlet channel. This includes the construction of a permanent structure at the start of the Lake St. Martin channel, as well as an enhancement of the outlet channel. The project also involves the construction of a permanently engineered channel with an outlet to Lake Winnipeg, bypassing Dauphin River First Nation. The permanent structure will significantly reduce the economic burden that chronic flooding has had on the Province of Manitoba. The Manitoba government will invest $330 million in the project as part of Manitoba’s $5.5-billion, five-year core infrastructure plan.
– 30 –


- Flood Warning issued August 22 at 8:20PM CDT until August 25 at 11:30PM CDT by NWS
- Effective: 10:51 p.m. on Wednesday, Aug. 23, 2017
- Expires: 11:30 p.m. on Friday, Aug. 25, 2017
...The Flood Warning continues for the following rivers in Kansas...
Marais Des Cygnes River at Osawatomie affecting Miami County.
Marais Des Cygnes River at La Cygne affecting Linn County.
Marais Des Cygnes River near Trading Post affecting Linn and Bates
Missouri River at Sibley affecting Clay...Jackson and Ray Counties.
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River At Miami affecting Carroll...Chariton and Saline
Missouri River at Glasgow affecting Chariton...Howard and Saline
Missouri River at Boonville affecting Cooper and Howard Counties.
The Flood Warning continues for
The Missouri River at Boonville.
* from Wednesday evening to Friday evening.
* At 7:30 PM Tuesday the stage was 12.6 feet.
* Flood stage is 21.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by Wednesday before midnight and
continue to rise to near 22.2 feet by early Thursday afternoon. The
river will fall below flood stage by Thursday before midnight.
* At 21.0 feet...Low-lying rural areas along the river flood.
Location FS Stage Day/Time Forecast
Boonville 21 12.6 Tue 07 PM 22.2 early Thursday
- See more at NOAA


SCH Number 2010061066
- Haster Basin and Recreational Field Project
- The project consists of the construction of a pump station and modifications to the existing Basin to provide increased flood protection within the C05-East Garden grove Wintersburg watershed as well as increased recreational opportunities. The project includes the following elements: enhanced flood water storage; a new pump station at the southwest corner of the basin; downstream improvements to the East garden Grove Wintersburg Channel to increase capacity between the new pump station and Aspenwood Lane; filling of a portion of the Basin for a recreation area; construction of a triple-carrel concrete flood control box under the existing parking lot and fill area; reconfiguration and expansion of the existing 44 car parking lot to provide a total of approximately 80 parking spaces; construction of a driveway/construction access road off Haster Street, which will be converted to a permanent entrance/exit to the new parking lot at the end of construction; and landscaping and an irrigation system. Construction of the proposed project is expected to take approximately 18 months.
2 documents in project
|EIR||Orange County Flood Control District||Haster Basin and Recreational Field Project|
|NOP||Orange County Flood Control District||Haster Basin and Recreational Field Project|
Disclaimer: Summaries of the notices may take several days to appear on CEQAnet. Again, the publishing of information on CEQAnet does not factor into when such notices were received and posted by the SCH. Contact the SCH for copies of an NOE or NOD that has been posted at OPR.


December 2023, construction update for the Gribo Popoli project.
The project is located on the Sassandra River in southwestern Côte d'Ivoire, with a total installed capacity of 112MW.
December 2023, construction update for the Nyabarongo II hydropower project.
The Nyabarongo II power station is located on the Nyabarongo River, approximately 25km from the capital Kigali, with an installed capacity of 43.5MW.
December 2023, Kinguélé Aval construction update.
The Kinguélé Aval hydropower project is located 90 km north of Libreville on the Mbei River in Gabon, with an installed capacity of 35MW.
As of December 2023, the Gouina project is in the process of completion and acceptance by the owner.
The Gouina hydroelectric power station in Mali is one of the largest hydropower projects in West Africa, located on the Senegal River, with a total installed capacity of 140 megawatts.
Cambodia Pursat hydropower plant diversion tunnel project is progressing smoothly.
Cambodia Pursat Hydropower Plant has a total installed capacity of 80 MW.The diversion tunnel of the project is a critical work in the construction of the hydropower plant and is progressing as planned. The smooth progress of the diversion tunnel project has laid a solid foundation for the completion of the whole hydropower plant project on schedule.
The Basic Design Report of the Nyabarongo II hydropower plant in Nahar, Rwanda, has been successfully approved after a year of hard work.
This is the largest hydropower project implemented by China and Rwanda in cooperation, and will make a significant contribution to the country's energy security and economic development. The power plant is located on the Nyabarongo River, about 25 km from the capital Kigali, with an installed capacity of 43.5 MW. The project is an EPC+F contract with a construction period of 56 months. The project includes the construction of the dam, flood protection system, water intake and power generation system, as well as transmission and substation lines.
With the efforts of OTEC team, PowerChina was successfully shortlisted for the ECI (Early Contractor Involvement) of NEOM TROJENA project in Saudi Arabia.
This is another important breakthrough for PowerChina in the Middle East market and the first ECI project for OTEC.
PowerChina will perform design review, design optimization, risk assessment and cost control of the project together with the owner and consultants, and expects to be eventually awarded the D&B contract.
OTEC will continue to bring its strengths forward for the continuation of the TROJENA project and build a new brand in Saudi Arabia and even in the Middle East market.
The Gribo Popoli hydropower project in Côte d’Ivoire has completed the diversion work 100 days ahead of schedule, creating favorable conditions for the subsequent dam construction.
The project is located on the Sassandra River in southwestern Côte d’Ivoire, with a total installed capacity of 112 megawatts.
OTEC provides technical and commercial consulting services for PowerChina in this project.
The Gouina hydroelectric plant in Mali was inaugurated on December 3, 2022.
Gouina Hydropower Plant in Mali is one of the largest hydropower projects in West Africa, located on the Senegal River, with a total installed capacity of 140 MW. The hydropower plant will provide reliable, clean and economical electricity to Mali and neighboring countries, promoting local socio-economic development and regional integration.
OTEC ENGINEERING has signed a consultancy service contract with SINOHYDRO on the December 10, 2021, for the Engineering design, procurement and construction of the Kinguélé Aval Hydropower project in Gabon. This is the second hydropower project in Gabon for OTEC Engineering.
Following a limited call for tender, OTEC ENGINEERING has signed a consultancy service contract with STECOL (PowerChina Group) on the November 30, 2020, for the Engineering, procurement and construction of the Nyabarongo II Multipurpose Development project in Rwanda.
This is a new hydroelectric project in South-Eastern Africa for OTEC Engineering.
On June 10, 2020, OTEC ENGINEERING has signed an agreement with Artelia Group for the factory reception of HEM equipment for the Nam Ngum 3 hydroelectric project in Laos, which allows the project to be completed on time despite the pandemic COVID.


The project covered the placing of 45 km ductile iron pipes, construction of 3 nos pump houses, 2 nos underground tanks, boosting station and miscellancous works.
The project covered the construction of 14 nos of bridges with a total length of 352 in Büyüksu, Mudurnusuyu, Kuruçay Streams.
The project covered the enlargement and heightening works for the Atık Dam dyke with 278,000 m3 filling material.
The project covered the construction of CTP pipes with various diameters (400 mm – 1000 mm) and total length 45.432 m, PVC pipes with various diameters (80 mm – 300 mm) and total length 23.653 m, diameter 1200 mm alley.
The Project covered the construction of a reservoir which has a usable storage of 6.8. million cubic meters with a water depth of 12.5 m. The Project comprised bulk excavation, earth fill, granular fill, concrete reservoir lining with geomembrane.
The project covers the construction of a concrete reservoir with a capacity of 300,000 m3, Installation of ductile iron pipes with diameters varying between 150 mm & 1800 mm and construction of a valve chamber.
The Project consisting from 3 packages has a total value of 85.275.959 USD. The first package covers 2194 m. Length (3,25 m x 2,95 m) box culverts with 6 cells. The Section 2 covers 5800 m. length (3,25 m. X 2,90 m. – 3,25 m. X 4 m. ) box culverts with 3 cells. The Section 3 covers 6800 m. length (3,25 m. X 2,95 m. ) box culverts with 3 cells.
The project covers the Lot 1: Expansion of Erbil 3 Water Treatment Plant, Lot 2: Distribution Network Reinforcement – Erbil City, Lot 3: Distribution Network Reinforcement – Duhok City
The project covers the construction of a rock fill dam on one of the creeks flowing in the Küçükçekmece Lake on the north side with a reservoir capacity of 91,300,000 cu.m together with the diversion and spillway structures.


Long discharge distance? The Booster Stations supplied by BIG Dredging are placed in the discharge pipelines when pumping beyond the maximum discharge distance or for keeping a high capacity of stationary dredgers or HDD Submersible Dredge Pumps.
All BIG Dredging booster stations can be supplied for the complete dredger and submersible dredge pumps range. The Booster stations are designed to be built into a sound proof container with the pump casing on the outside, which ensures the inside of the container cannot be polluted with sand in case of the pump casing breaking down.
In principle all booster stations are situated on the shore. When they are required to be placed on the water we supply a special set of pontoons, provided with 3 manually operated winches to position the floating booster station on the water.
Last but not least BIG Dredging booster stations meet with all legislative worldwide demands regarding safety and environment.


Project: Uncertainty propagation in rainfall-runoff models due to inaccurate model parameters
- project duration
- 01-JAN-10 – 31-DEC-13
- The main objective of the research consists of extending a possibilistic methodology to propagate the uncertainty of model parameters through a complex rainfall-runoff model. Major attention will be given to the assessment of model parameter uncertainty and the optimalisation of the application of the extension principle.


Hydraulic turbine / Kaplan / power plant
Kirloskar Brothers Ltd.
Rated power kW:
Min.: 0 kW (0 hp)
Max.: 20000 kW (26820.44 hp)
The Kaplan Turbine is a hydro-turbine manufactured by Kirloskar Brothers Limited. Specifically suitable for areas with low head and high discharge, it features a unit output reaching up to 20 MW and a head measuring up to 60m. The turbine can be used in different applications including the small hydro-electric projects and the canal based projects.


- Semi Open Impeller Pump casing and impeller are made up of stainless steel
- Shaft is made up of stainless steel
- The standard material of mechanical seal is Carbon/Ceramic/NBR.
- The impeller is semi-open type which can handle solid with maximum diameter
- WLS pump is design with axial suction and vertical discharge (Both are threaded).


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Villages of Sarguja will come under submergence of approved dam in Jashpur district
Protest has intensified over the construction site of the Shekharpur Large Reservoir Scheme, an ambitious irrigation project in the Sitapur region. Opening a front against this irrigation project, the people of a dozen villages have submitted a memorandum to the police station in the name of the Governor, Chief Minister, along with the regional MLA and Food Minister Amarjeet Bhagat, demanding construction of a dam at the proposed site instead of the area being surveyed. They say that if the dam is not constructed at the proposed site instead of the surveyed area, then people of a dozen affected villages in the dam will mobilize in protest against it, which will be the responsibility of the administration.
A large reservoir is to be constructed at Shekharpur in Sitapur to provide irrigation facilities to the un-irrigated areas of Jashpur and Surguja districts. The dam is proposed to be constructed after surveying the Ib River at Dhandapani in Jashpur district and the Maini River area of Shekharpur for construction of the dam under this project. It is alleged that instead of conducting the survey here, instead of conducting the survey here, Suri village in Surguja is surveying the Mani river area flowing through Dhondhagav, Shivnathpur, Petla, Thoothama so that the dam can be constructed here.
In fact, Shekharpur is a village in Jashpur district and this is the name of the scheme, under which this dam is proposed to be built on the Maini river flowing through here, but the construction agency is called Thoothiama, Sarhadi village in Sarguja district, 40 km from here. The main river flowing over the place wants to build a dam on the river. With the construction of this dam here, Dhodhagaon Shivnathpur Petla Kerju, Kunmera, Sarga, Gersa Kathbuda, Ara, Ghasidih, Vansipur, Hardisad will come in the Duban region. People will have to bear the pain of displacement.


This hand pump is specialy designed for bolt tensioner applications. The pump is compact and light in weight with longer handle needing very little effort to generate max working load. All pumps are supplied with suitable fittings and stainless steel 70 mm dia pressure gauge.
|Model No.||Description||Usable Oil
|PU-HP-1500||1500 bar Hand Pump c/w 200 bar gauge||3.0||HCS-150-F||615||200||190||12|


MAIN STREET CLOSED, IN BOTH DIRECTIONS, BETWEEN UNIVERSITY AND ELMWOOD
New Flood Forecast For Illinois River
The National Weather Service has revised the forecast for flooding along the Illinois River.
The river, at Peoria, is now expected to crest at the 18-foot flood stage around midnight Tuesday night. Earlier, it was predicted the recent rain along with snow melt would boost the river a foot above flood stage.
Peoria's record crest of 29.5 feet was set last April.


Investment pledges in hydro projects drop
KATHMANDU, DECEMBER 23
Investment commitment in hydropower projects have declined this fiscal year compared to that of last fiscal year.
According to the Department of Industry, a total of 13 hydropower projects have been registered in the first five months of the current fiscal year. Meanwhile, during the same period of previous fiscal, a total of 22 projects had been registered.
According to the department, the 13 registered hydropower projects will have total installed capacity of 300 MW and investment worth Rs 53.63 billion.
The department has stated that the inquiries for the project registration are quite high, however, due to the COVID-19 pandemic, the registration has been affected.
Among the total registered projects, 10 projects will generate more than 10 MW electricity in five months of the year. Of them, the biggest one — worth Rs 13.57 billion — will be constructed at Makalu Rural Municipality of Sankhuwasabha district.
Similarly, a Rs 10.31 billion hydropower project will be built in Myagdi district, while a project worth Rs 5.76 billion will be constructed in Makwanpur. Likewise, a project worth Rs 4.69 billion in Sotang Rural Municipality and a project worth Rs 4.7 billion in Mahakulung Rural Municipality will be constructed in the Solukhumbu district.
As per the department, a project worth Rs 5.56 billion will be built in Kaski district, 10while a project worth Rs 3.83 billion will be constructed in Myagdi district. In Lamjung district, a project worth Rs 2.52 billion has been registered for construction, while in Dolakha district a project worth Rs 1.66 billion has been registered.
A project in Kapilvastu will have the lowest investment out of the 10 projects — Rs 945 million.
Amid this, three hydropower projects have been registered that will generate less than 10 MW electricity per year. Among them, a project worth Rs 117.5 million and another project worth Rs 284.6 million have been registered in two municipalities of Dolakha district.
Similarly, a project worth Rs 721.6 million has been registered in Sankhuwasabha.


In the wake of Supreme Court’s decision and the Government’s resolve for early commencement and timely completion of Diamer Basha and Mohmand Dams, the Pakistan Water and Power Development Authority (WAPDA), while gearing up its efforts for implementation of the projects, received pre-qualification bids at WAPDA House from as many as five joint ventures of foreign and local firms through international in the 2nd week of September as competitive bidding for construction of main dam and appurtenant structures of Diamer Basha Dam Project.
The pre-qualification bids will be evaluated in accordance with the bid documents and the relevant procurement rules of the Public Procurement Regulatory Authority (PPRA) and the Pakistan Engineering Council (PEC).
Diamer Basha Dam is a multipurpose project aims at water storage, flood mitigation and power generation. The project will be constructed across River Indus about 40-kilometer downstream of Chillas town. The 272-meter high Roller Compacted Concrete (RCC) Dam will have a gross water storage capacity of 8.1 million acre feet (MAF). The project will generate 4500 megawatt of electricity with annual energy generation of more than 18 billion units of low-cost and environment friendly electricity. With construction of Diamer Basha Dam Project, the life of Tarbela Dam will enhance to another 35 years.It will also have a positive impact on the annual energy generation of the projects in the downstream areas. It is estimated that the annual energy generation of the existing hydel power stations including Tarbela, Ghazi Barotha, Jinnah and Chashma will increase by about 2.5 billion per annum, while annual energy generation of the future hydropower projects including Dasu, Pattan and Thakot will also surge by another 7.5 billion units.


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SGCC plans to set up five pumped storage plants (PSP) aggregating 6 GW at an investment of $5.66 billion. The plants will be located in the provinces of Jilin, Hebei, Shandong and Zhejiang, and the far west region of Xinjiang. They are expected to be completed by 2026. SGCC currently has 19.23 GW of pumped hydro storage capacity and 30.15 GW is under construction. The pumped storage plants will be used as reservoirs to store energy from the country’s growing renewable energy capacity.


Unused Filter press, Shriver/Eimco, recessed plate, 18" wide plates, polypropylene plates with approximately 1/2" recess, includes (3) plates with one having dual sided recess, Model number M470FB, serial number 41962-01-AR rated for max filtering pressure of 225 PSI, maximum thrust 39 tons max oil pressure 4000 PSI. Capable of additional plates. Set up for hydraulic closure, 4-eye closed delivery with Graco pump. Includes spare unused baker process hydraulic pumping unit, item number SMOO6B35A includes Teledyne fluid systems pumping unit, model number S216J60, serial number 2946, rated for outlet pressure 6100 PSI, maximum drive pressure 100 PSI, new in 1997; includes automatic valves, filters, piping, etc., excellent condition.
Get email updates for Shriver M470FB


Maldives Transport and Contracting Company (MTCC) has stated that the Hdh. Nellaidhoo Harbour project is nearing completion with an overall progress of 75%.
The construction of quay wall and harbour pavement works is now underway, according to MTCC, with an overall progress rate of 97 percent.
This project entails 62,863 cubic metres of dredging and reclamation, as well as the construction of a 204-meter breakwater and a 50-meter revetment. The harbour project also includes the installation of a 2,102-square-meter paved area, navigation lights, and lamps.
The Hdh. Nellaidhoo Harbour project is estimated to be worth MVR 50.86 million


US 34 Big Thompson Canyon Permanent Repair Hydraulics« Return to Project Search
US Highway 34 suffered extensive damage during the September 2013 flooding on the Big Thompson River. Ayres assisted with hydraulic analysis and design for the permanent repairs.
The project won Engineering News-Record’s 2018 Project of the Year Award (its top award in the nation) and ENR’s 2018 Best of the Best Highway/Bridge Project Award. The Colorado Association of Stormwater and Floodplain Managers (CASFM) gave the project its 2019 Engineering Excellence Grand Award.
Ayres performed geomorphic and hydraulic field assessments of the roadway corridor and converted the HEC-2 segments of the effective Larimer County 1-dimensional regulatory models to a single HEC-RAS model of the study reach. Ayres developed pre-flood and existing conditions 2-dimensional SRH hydraulic models of the US 34 corridor along the Big Thompson River between Olympus Dam in Estes Park and Rossum Drive in Loveland, Colorado.
This modeling provided detailed velocity, water surface elevation, and shear stress data for the 24-mile reach and supported channel rehabilitation design, proposed roadway alignment and profile development, roadway repair scour protection, scour countermeasure design, and floodplain regulatory compliance. The flood conditions within the canyon are uncommonly severe, with the 100-year flood producing velocities exceeding 20 feet per second in some locations. These severe conditions required innovative design and construction for the highway embankment protection.
- William deRosset, Senior Hydraulic Engineer
- Dustin Robinson, Senior Project Manager
- Anthony Alvarado, Manager - Stream and Stormwater
- James Hitchman, Civil Engineer
- Matthew Hickox, Water Resources Engineer
- Dylan Armstrong, Hydraulic Engineer
- Brianna Corsi, Hydraulic Engineer
- John Hunt, National Practice Leader - Hydraulics
- Ryan Beltrand, Manager - Northern Midwest Survey
Project InformationClient's Name
Colorado Department of Transportation, Headquarter OfficeLocation
Larimer County, COPrimary Service
River Engineering + Water ResourcesMarket
State + Federal + Tribal


The range of Dredge and Gravel pumps is designed specifically for continuous pumping of extremely aggressive slurries, with a wide particle size distribution. Capable of handling large particles at consistently high efficiencies results in low cost of ownership. The large volume internal profile of the casing reduces associated velocities further increasing component life.
The SG and SGH pump is a horizontal cantilevered single casing centrifugal pump
A typical feature of this sand and gravel pump is its one-piece case, connected using clamp bands. This design makes the outlet rotation to any angle. Minimal maintenance is required.
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3/4″ Brass Dual Check Non Return Valve.
3/4″ BSP threads, Female inlet with a screwed union on the Male outlet side.
Max inlet pressure 1600 kpa
Min inlet pressure 60 kpa
DR Brass double check valve WaterMark approved
Certified to AS 2845.1
Working temperature 0 – 60 degrees C
Not suitable for hot water installations


|Source||Kaimur Hill(Devgarh pahadi)|
|• location||Sonhat, Manendragarh, Chhattisgarh, India|
|Janjgir–Champa, Chhattisgarh, India|
|Length||176 km (109 mi)|
|• left||Ahiran River, Tan River|
Hasdeo River is the largest tributary of Mahanadi River. The river flows in the state of Chhattisgarh. It joins Mahanadi River near Shiladehi (Birra). Hasdeo Bango Dam is constructed across this river. The river originates about 910.0 m (2,985.6 feet) above sea level, in a place about 10.0 km (6.2 miles) from Sonhat in Koriya district. The total length of the river is 333.0 km (206.9 miles), and drainage area is 9856 km2. The major tributary of Hasdeo River is Gej River. The river flows through the Hasdeo Arand forest.


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Reclamation issues snowmelt forecast for Bighorn River Bastin
February 23, 2023
BILLINGS, Mont. — Reclamation’s February forecast of the April through July runoff predicted for the Bighorn River Basin is as follows:
• Bighorn Lake - Bighorn River April through July inflow to Bighorn Lake is forecast to be approximately 1,209,000 acre-feet (af), which is 98% of the 30-y...


Engineering of Koysha HPP with its high RCC gravity dam
Koysha (2,160 MW, under construction) is the fourth hydropower plant of Omo/Gibe river cascade in Ethiopia, comprising Gilgel Gibe (200 MW), Gibe II (420 MW) and Gibe III (1,870 MW), all currently in operation.
Koysha is a step forward in the development of the entire hydropower potential of the Omo river and represents a realization of the large-scale vision started more than 25 years ago with the design of Gilgel Gibe hydroelectric power plant. It testifies our long-term commitment for the progress of Ethiopia’s energy sector.
The project includes several outstanding examples of value engineering and design optimization, carried out by SP throughout the entire design and construction period of the hydroelectric power plant.
The layout includes an RCC gravity dam, approximately 180 m high, that creates a large reservoir of about 6,500 Mm3.
Floods are discharged by means of a gated spillway located on a saddle at the left side of the RCC dam: a large channel with a flip bucket designed for releasing a flow of about 13,100 m3/s in a plunge pool adjacent to the river, downstream of the powerhouse.
The dam is crossed by three steel penstocks feeding an open-air powerhouse. One of the intakes is lowered to allow early generation using the first two units during the first impounding.
The project includes two 6 m diameter middle level outlets embedded in the dam body allowing to control the reservoir level during the first impounding, release artificial/ecological flows and lowering the reservoir level for inspection/maintenance needs.
The river diversion layout includes two concrete culverts on the right side of the river, aimed to divert the river during the dam construction and designed to discharge up to 3,000 m3/s, and an upstream composite RCC/rockfill cofferdam.
Both the river diversion layout and the energy-generation operating rules of Koysha have been optimized taking advantage of the large flow regulation capacity of the upstream Gibe III project.
Tandem operations of the two projects allow to maximize energy generation and provide great flexibility guaranteeing power supply during both dry season and peak-demand period.
The power house is located on the left side of the river, housing eight Francis turbines generating 2,160 MW, together with erection bays and control building. Step-up transformers are located behind the powerhouse. Each unit is connected to three single-phase 400 kV transformers, for a total of 24 transformers that are linked through overhead lines to the 400 kV Switchyard.
Oromia region, Ethiopia
Salini Costruttori S.p.A.
- RCC Gravity Dam (H = 180 m, crest L = 990 m)
- RCC & Rockfill Cofferdam (H = 42 m, L = 330 m)
- Gated Spillway (Q=13,100 m3/s)
- Penstocks (No. 3, L = 0.65 km)
- Power House (open-air, No. 8 Francis turbines, IP = 2,160 MW)
- Switchyard (400kV, No. 14 bays)
Level 1 Design
Level 2 Design
Technical Supervision during Construction for EPC Contractor


Sat, Sep 19, 2015, 05:12 PM
Heavy rains due to low pressure in the Bay has led to rivers flooding and heavy inflows into the projects and reservoirs are making farmers happy. Officials are lifting the gates and releasing the waters to lower regions. At some projects where water levels have reached the maximum, they are releasing the waters back into the rivers. The heavy rains as well as the project waters are boosting the spirits of farmers.


Rio Guayllabamba - Ecuador
Hidroequinoccio HEQ S.A.
2009 - 2012
Description for Chespi Hydropower (Ecuador)
Chespi is the first hydroelectric project of the Guayllabamba cascade with an installed power of 468 MW.
- Reservoir (V = 2.3 Mm³)
- Arch dam (H = 68 m, L_crest = 144 m, V = 45'000 m³)
- Headrace tunnel (L = 18.3 Km, D = 5.4 m)
- Tailrace tunnel (L = 6.3 Km, D = 6.4 m)
- Surge Shaft (H = 123 m, D = 15 m)
- Penstock (L = 1'000 m, D = 4-3.4 m)
- Underground power house (No. 4 Pelton turbines, IP = 117 MW each)
San Lorenzo Hydropower (Italy)
San Lorenzo (Sestu) is a small hydroelectric plant to supply the water...
Bujagali Hydropower (Uganda)
Hydroelectric project on the Victoria Nile River within an installed power of...
High Voltage Transmission System (GABON-CONGO)
The assignment, financed by European Union...
King Talal Hydropower (Jordan)
The assignment comprises the assessment of conditions of the existing plant...
Lufubu Hydropower Cascade (Zambia)
LUFUBU HPP Cascade envisages the construction of three hydropower plants on...
Chespi Hydropower (Ecuador)
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...
Anguilles Dam (Mauritius)
The scope of the project is to make use of the...
La Gogue Dam (Seychelles)
The aims of the assignment are the Design Review...
Batoka Gorge Hydropower (Zambia/Zimbabwe)
The prestigious project of Batoka Gorge, with...


Liquid Level Control Valves
1 Result Found that Includes 28 Products
Maintain constant pressure for corrosive and ultra-pure liquid applications with liquid level control valves from Grainger. Rugged construction and diaphragm design allow for extended performance, long life, and accurate flow control. Valve operates automatically and diaphragm changes shape to maintain a constant flow with inlet pressure from 15 to 120 psi. Get your liquid control valves from Grainger today!


Calpeda GXR GXV Stainless Steel Submersible Pump
The GXR and GXV stainless steel pump range from Calpeda. Includes manual versions, automatic versions with float switch and tube switch including10 m cable.
Single-impeller submersible pumps in chrome-nickel stainless steel, with vertical delivery port.
Motor cooled by the pumped water passing between the motor jacket and the external jacket.
Handle in polypropylene.
Double shaft seal with oil chamber.
With float switch for automatic start/stop.
Minimum dimension and high levels of performance, for use in many different applications, head up to 12,7 m and flow rates up to 220 liters/min.
For clean water containing solids up to 10 mm grain size.
For draining rooms or or emptying tanks.
Extraction of water from ponds, streams or pits and for rainwater collection.
For irrigation purposes.
For outdoor use a power supply cable of not less than 10m should be used in accordance with: EN 60 335-2-41.
Liquid temperature up to 40° C.
Maximum immersion depth: 5 m.
Minimum water level with float 70 mm.
Minimum water level manual operation 15 mm.


Bolivar Dam repairs running a little ahead of scheduleSeptember 22, 2015
About 31 percent of length of a new barrier wall has been completed
Four Seasons Hotel and Private Residences, One Dalton StreetApril 24, 2015
Hotel and residences are expected to be completed in 2017
Bolivar Dam work to begin in DecemberAugust 14, 2014
The U.S. Army Corps of Engineers, Huntington District, has awarded TREVIICOS the construction of the seepage barrier at Bolivar Dam in OhioApril 3, 2014
The work is expected to take about four years to complete.


Ente Autonoma del Flumendosa (EAF)
Description for Simbirizzi (Italy)
Simbirizzi (Settimo S. Pietro) is a small hydroelectric plant to supply the water pipeline network of southern Sardinia.
- Open-air Power House (external dimensions 18 x 10 x h7 m)
- Electromechanical Works (No.1 Francis Turbine, IP = 1'300 kW, Q = 2 m3/s, Head= 75 m, E = 6.5 GWh/y)
- Three-Phase Synchronous Alternator (6 kV/1,700 kVA)
Montedoglio dam has suffered some damages at the spillway and dam body due to...
Kabwe urban water supply scheme.
Reservoir storage capacity: 12 Mm³.
Kalivac Hydropower Plant has 108 MW of installed power.
Enguri Cascade (Georgia)
ENGURI HPP Cascade envisages the construction of three hydropower plants on...
Gibe II (Ethiopia)
Gibe II is the second stage of the Gibe-Omo hydroelectric cascade which...
Water storage for irrigation, capacity 58 Mm³.
Gibe III (Ethiopia)
The design of this record breaking 250 m high...
Bumbuna (Sierra Leone)
This is one of our pet projects that we have...
Grand Ethiopian Renassaince Dam
This majestic project, born of the vision and...


Hearthstone Dam Featured
A project Schnabel worked on was recognized in the Augusta Free Press. “Hearthstone Lake Dam is not just a dam. It’s a life-saving asset,” says Jonathan Pittman, P.E., project manager. The work completed on the Hearthstone Lake Dam significantly reduced flood risk to nearly 300 area homes and businesses.
Hearthstone Lake Dam is not just a dam. It’s a life-saving asset


Blanchard River crests
Saturday, April 13, 2013 7:00 AM
OTTAWA - The Blanchard River at Ottawa crested late Saturday afternoon at 27.31. At the 6:30 p.m. reading the river hd dropped to 26.9 feet.
A flood warning remains in effect for the Blanchard and Auglaize Rivers. Several roads in the county, including St. Rt. 224 and 65 in Ottawa and St. Rt. 634 remain closed due to the high water levels of the Blanchard River.
To check out updates on the water level of the Blanchard River go to: Blanchard River Update
For the Auglaize River go to: Auglaize River Update


AWMA were engaged by the Thiess Degrémont Joint Venture to design, manufacture, supply and commission over 100 flow control structures with associated lifting mechanisms and storage solutions for the Victorian Desalination Plant.
Installation of flow control structures was supervised by AWMA to ensure product integrity and effectiveness.
The top sealing segmented stoplogs are designed to isolate up to 60 tonne of water load per segment (14m head pressure each).
Victoria’s new desalination plant will be capable of producing 150 billion litres of water per year, independent of rainfall.
Desalination plant infrastructure has demanding specifications in regards to design, material selection, quality assurance and documentation.
AWMA’s experience with the successful delivery of water control structures for the Sydney and Perth Desalination plants reinforced AWMA’s capacity to deliver this vital water project, on time and on budget.
For more information
Client: Thiess Degrémont Joint Venture
Value: $3.5 Billion
- Victorian Desalination Project


A 67.3-long-meter long water channel is built alongside Jalan Jambrut, Block III, RT 08/02, Kenari, Senen Sub-district, Central Jakarta.
" The old channel will be replaced with a concrete channel with a width and length of 40 centimeters"
Senen Sub-district Water Resources Executing Unit Head, M. Rohman said that it is conducted to respond citizen's request in the 2019 Regional Development Planning Forums (Musrenbang).
"The old channel will be replaced with a concrete channel with a width and length of 40 centimeters. It will have 45 centimeters depth," he expressed, Monday (3/4).
The channel will be connected with secondary channels on Jalan Jambrut, which will later flow into the connecting channel on Jalan Kramat Raya.
"This channel will be completed with a plate and a control tub in the size of 60x60 centimeter. It's targeted to be finished for one month," he told.


Alert for Lexington; Richland (South Carolina) Issued by the National Weather Service
- Flood Advisory
- Lexington; Richland
...The Flood Advisory continues for the Congaree River...
Congaree River At Columbia affecting Lexington and Richland
A Flood Advisory means that nuisance flooding may occur nearest the
river when the level is below the official flood stage.
The Flood Advisory continues for
The Congaree River At Columbia.
* until Saturday evening.
* At 7 PM Friday the stage was 9.7 feet.
* Flood stage is 19.0 feet.
* Forecast...The river is expected to fluctuate around 10 feet through
* Advisory stage is 10.0 feet.


The Design of Constant-Flow Bump Control System Based on BP Neural Network
The advantages and disadvantages of the current constant-flow control method for the constant-flow pump (CFP) are analyzed. By using the experimental data and the BP neural network (BPNN), the model between outlet pressure and flow loss coefficient established. In order to realize constant-flow control for the CFP, a feed-forward controller based on the model is set up finally. Experiments show that this controller can improve the flow control accuracy for the CFP greatly.
Z. P. Wu and Y. B. Chen, "The Design of Constant-Flow Bump Control System Based on BP Neural Network", Applied Mechanics and Materials, Vols. 128-129, pp. 1472-1475, 2012


Salini Costruttori S.p.A.
Description for Weija (Ghana)
Mini Hydroelectric Power Plants (Jamaica)
Jamaica 6 project includes the feasibility for six small hpps in Jamaica and...
Bumbuna Hydropower (Sierra Leone)
The Bumbuna Hydroelectric Project (BHP) is the...
Genzano Storage Plant (Italy)
Water storage for irrigation, capacity 58 Mm³.
Koysha Hydropower (Ethiopia)
Koysha (2’160 MW, under construction) is the...
Lusaka Aqueduct (Zambia)
Lusaka project including domestic water supply pipeline for the city of...
Chespi Hydropower (Ecuador)
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...
Hydropower Projects (Ghana)
The scope of the assignment, commissioned by...
Acerenza Dam (Italy)
Water storage plant for irrigation purposes with a reservoir capacity of 42...
Dabus Hydropower (Ethiopia)
Dabus HPP cascade is located on the Dabus river, a north-flowing tributary of...


LAMJUNG: Upper Dordi A Hydropower Project has intensified construction work aiming to start test production from April 2020.
The project has claimed it will finish work related to the construction of all infrastructure and installation equipment by March. “So far we’ve finished 85 per cent of the construction work. We hope to finish the remaining work within the expected deadline,” project developer Liberty Engery Company Limited Chairperson Kush Kumar Joshi said.
The 25MW capacity project is being developed in Dordi Rural Municipality of Lamjung.


The operating conditions of TS65-40-125 type centrifugal pump with medium-high specific speed are changing frequently. The performances of pump, especially pressure head and efficiency, were designed to satisfy five operation conditions according to the industry demands. After analyzing the defects of prototype pump, three impellers were designed based on the enlarged flow design method. The distributions of pressure, turbulence kinetic energy, velocity in three impellers were predicted with the commercial CFX. One impeller was selected as optimal schemes and produced for experiments. The test results show that the pressure head of the new product is 5 m higher than prototype pump at the new design working condition. The efficiencies of five operating conditions are significantly improved, meeting the design requirement. Both simulating and test results show that enlarged flow design method is effective to improve the pressure head of centrifugal pump with medium-high specific speed and widen the pump high efficiency area. A reference is provided for optimal design of medium-high specific speed centrifugal pump.
Li Yibin, Wang Improved Design of Non-Overload Super-Low Specific Speed Centrifugal Pump[J]. Drainage and Irrigation Machinery, 2006(2):7~10
关醒凡，陆伟刚，魏光新. 全扬程泵理论与设计实践[J]. 水泵技术，1995(2)：9~11.
Guan Xingfan, Lu Weigang, Wei Guangxin. The theory and design of non-overload centrifugal pumps[J]. Pump Technology, 1995(2):9~11. (in Chiness)
Yong-Do choi, Junichi Kurokawa, Jun Matsui. Performance and internal flow characteristics of a very low specific speed centrifugal pump[J]. Jounal of Fluids Enginering, Transactions of the ASME， 2006,128(2):341~349.
Gulich J F. Disk friction losses of closed turbo machine impellers[J]. ForschungimIngenieurwesen, 2003,68(2):87~95.
Yuan Shouqi, Ni Yongyan, Pan Zhongyong, et al. Unsteady turbulent simulation and pressure fluctuation analysis for centrifugal pumps[J]. Chiness Journal of Mechanical Engineering, 2009,22(1):64~69.
Jeseph P V. Centrifugal and acial pump design and off design performance[R]. US National Aeronauties and Space Administration, 1995:17~21.
Cheah K W, Lee T S, Winoto S H, et al. Numerical flow simulation in a centrifugal pump at design and off design conditions[J].Internation Journal of Rotating Machinery,2007,1~8.
Raul Barrio, Jorge Parrondo, Eduardo Blanco. Numerical analysis of the unsteady flow in the near-tongue region in a volute-type centrifugal pump for different operating points. Computer& Fluids, 2010,39:859~870.


The China Development Bank (CDB) granted RMB 5 billion in additional loans to the Three Gorges Project, bringing the bank's total loans to the dam project to RMB 35 billion.
The CDB offered a loan of RMB 30 billion in 1994 with a credit period of 15 years when the project was just launched.
The Three Gorges Dam Project began in 1993, with an estimated total investment of RMB 180 billion. The world's largest dam is expected to be completed by 2009.
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Lake Lynn, northcentral North Carolina
Crabtree Watershed Dam #22b is the result of Lake Lynn Dam on Hare Snipe Creek in Wake County, North Carolina and is used for flood control and recreation purposes. Construction was completed in 1976. At normal levels it has a surface area of 55.7 acres. It is owned by Wake Co. Comm.Dev. Services.
Lake Lynn, also known as Crabtree W/s Dam #22b is of earthen construction. The core is earth. The foundation is rock, soil. Its length is 620 feet. Its capacity is 2292 acre feet. Normal storage is 499 acre feet. It drains an area of 3.73438 square miles.
Lakes, Dams, and Recreational Facilities Near Lake LynnShelley Lake Eden Pond Richland Lake State Fair H and L Dam Lake Crabtree Lake Crabtree Old Mans Lake E.M. Johnson Water Plant B Ncsu Unit No. 4 Dam Page Lake Crabtree Creek Watershed #1 Falls Lake Lake Johnson Lake Raleigh N C S U Lake Crabtree Creek Watershed Dam #18 Falls Lake Reservoir Falls Lake Reservoir Crabtree Crk. Watershed Structure #2 Beaverdam Creek Lake Stone Throw Apartments Pond Apex Lake Twin Lake Falls Lake Ncsu Farm Unit Dam #2 Lake Wheeler Lake Wheeler Twin Lake Lake Wheeler Wake Forest Water Supply Dam Lake Benson Lake Benson Lake Benson Garner Ww Lagoon #1 Garner Ww Lagoon #2 Infinity Rd Raw Water Reservoir B Everett Jordan Lake Lake Rogers Eno West Point Dam Little River Dam
Bookmark this lake location.
Find other northcentral North Carolina area lakes and vacation ideas or return to the home page.
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Detailed design of the sewage treatment plant in the Municipality of Avola
Final and Detailed Design
Safety Plan during Design Phase
Impresa SLED S.p.A.
Municipality of Avola
The project foresaw the construction of the waste water treatment plant of Avola.
In particular the assignment included:
- the construction of a new sewage network to direct to the new WWTP the waste waters that used to be drained into the sea;
- a new pumping station;
- the discharge pipe of the new WWTP (on land and under water pipe);
Main technical information:
- Population served: 40,000 equivalent inhabitants
- Average daily discharge: 11,200 mc/d
- Main pipe: 1,1 km diameter da 400 a 800 mm
- Sub marine pipe: 0.5 km diameter 710 mm
- pressure: 1,2 km diameter 400 mm.


• Bertha and 1st streets
The 1st and Bertha streets roadway and drainage improvement project work will consist of reconstruction and resurfacing the two roads, installing a new stormwater collection system on Bertha Street and rehabilitation of the existing stormwater collection system on 1st Street. Due to the underground work and full-depth road reconstruction, there will be lane closures and detours for extended periods.
• U.S. 1, Old Seven-Mile Bridge
Bridge rehabilitation project is expected to be completed in February 2022.
• U.S. 1, various locations
Hurricane Irma bridge repairs, roadway, shoulder, shore, path and fencing projects throughout the Keys. Also, various landscape improvement projects.
• Channel 5 Bridge
A bridge rehabilitation project at the S.R. 5/Overseas Highway over Channel 5 Bridge has begun. Estimated project completion is August 2023.


DoED – Myagdi Hydroelectric Power Plant 32 MW – Nepal - Project Profile
"DoED – Myagdi Hydroelectric Power Plant 32 MW – Nepal - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.
The "DoED – Myagdi Hydroelectric Power Plant 32 MW – Nepal - Project Profile" is part of Timetric's database of 82,000+ construction projects. Our database includes a 10+ year archive of completed projects, full coverage of all global projects with a value greater than $25 million and key contact details for project managers, owners, consultants, contractors and bidders.
The Department of Electricity Development, Nepal (DoED) is planning to construct a hydroelectric power plant in Myagdi, Nepal.
The project involves the construction of a 32MW hydroelectric power plant.
The project includes the construction of a powerhouse, a substation and access roads, the installation of transformers, generators, turbines, and the laying of transmission lines.
The project involves the construction of a 32MW hydroelectric power plant in Myagdi, Nepal.
The US$60 million project includes the following:
1. Construction of a powerhouse
2. Construction of a substation
3. Construction of access roads
4. Installation of transformers
5. Installation of generators
6. Installation of turbines
7. Laying of transmission lines
Reasons To Buy


UCRC: Content of Colorado River Storage Project Reservoirs, Streamflow, and Power Generation
MetadataShow full item record
"Storage in Lake Mead decreased 489,000 acre-feet during the month. On December 31, 1985 the reservoir contained 23,720,000 acre-feet at water surface elevation 1,205.49 feet (82.49 feet above rated head elevation 1,123 feet.) Live storage at Lake Mead was 90.7% of the live capacity of 26,159,000 acre-feet."


Las Ondinas Gr is an 80.8MW hydro power project. It is located on Sil river/basin in Leon, Spain. 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 1966. Buy the profile here.
The project was developed by Endesa Cogeneracion Y Renovables (Ecyr) and is currently owned by Endesa Generacion with a stake of 100%.
Las Ondinas Gr is a reservoir based project.
The hydro power project consists of 2 turbines, each with 40.4MW nameplate capacity.
The project got commissioned in 1966.
Power purchase agreement
The power generated from the project is sold to Red Electrica De Espana (Ree) under a power purchase agreement.
For more details on Las Ondinas Gr, buy the profile here.


Baoxing is a 195MW hydro power project. It is located on Baoxing river/basin in Sichuan, China. 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. The project construction commenced in 2006 and subsequently entered into commercial operation in 2009. Buy the profile here.
The project was developed by Sichuan Huaneng Baoxing River Electric Power. China Huaneng Group, Sichuan Electric Power Development, Ya'an State-owned Assets Operation, Changjiang River Resource Hydropower Development and Ya'an Electric Power are currently owning the project having ownership stake of 68%, 12%, 10%, 8% and 2% respectively.
Baoxing is a reservoir based project. The project generated 874 GWh of electricity. The project cost is $202.89m.
The hydro power project consists of 3 turbines, each with 65MW nameplate capacity.
The project has 3 electric generators installed at the site. The generator capacity is 65 MVA.
The project construction commenced in 2006 and subsequently entered into commercial operation in 2009.
Power purchase agreement
The power generated from the project is sold to State Grid Corporation of China under a power purchase agreement.
For more details on Baoxing, buy the profile here.
About Sichuan Huaneng Baoxing River Electric Power
Sichuan Huaneng Baoxing River Electric Power Co Ltd, a subsidiary of Sichuan Chuantou Power Development Co Ltd is a provider of power generation services.


Dam is 48 km from Palakkad The
Mangalam Dam is constructed on the river Cherukunnapuzha, a tributary of
the river Mangalam. A popular picnic site, The Mangalam Dam is located
south of Palakkad town. The construction of the scenic dam was completed
in the year 1956
the Alathur - Vadakkanchery Highway, the reservoir fringes on the forest
area teeming with wildlife like deer, elephants and a variety of birds.
The entire area is quite fascinating with beautiful parks, lawns and statues


Hot Oil Flow Loop - InnoTech Alberta
The Hot Oil Flow Loop is a recirculating loop with a heat jacketed holding vessel. The loop is fully instrumented and allows for inline installation of flow devices, such as orifice plates, or meters. The flow rate, pressure and temperature of the oil can be changed for evaluating the devices at different viscosities and flow rates. The operational conditions of the flow loop can be modified up to a maximum temperature of 90⁰C and up to a maximum pressure of 4 MPag.


Little Beles River - Ethiopia
Italian Ministry of Foreign Affairs - General Directorate for Cooperation to Development (D.G.C.S.)
Description for Little Beles (Ethiopia)
Reservoir for water supply with a storage capacity equal to 3.5 Mm³.
- Concrete gravity dam (H = 35 m, L_crest = 125 m, V_cvc = 35'000 m³)
- No. 2 flap gates (H x L = 5 x 10 m)
- Intake and outlet works
- Ancillary works
Santu Miali (Italy)
Refurbishment of the Santu Miali hydropower plant
Rio Grande (Argentina)
Hydroelectric Plant with Pumped Station.
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...
Rockfill dam with bituminous facing (BFRd) with a reservoir for irrigation,...
Water storage plant for irrigation purposes with a reservoir capacity of 42...
Impianto Idroelettrico (PI = 255 MW) sul fiume Lunsemfwa a valle della diga...
This majestic project, born of the vision and imagination of Giorgio...
Namakhvani Cascade (Georgia)
Namakhvani HPP Cascade, includes the construction of three hydropower schemes...
Batoka Gorge (Zambia)
Trans-boundary hydropower plant of 1'600 MW, equally shared among Zambia...


We recently commenced stormwater works along Marmion Avenue in Kilburn which is one part of a catchment wide solution to reduce flooding. The works are in relation to the proposed link between the Main North Road stormwater drain to the North Arm East open drain located at the western end of Marmion Avenue. Once works are complete, this will provide flood relief for the area surrounding the Main North Road and Grand Junction Road intersection.
This new stormwater drain will increase the capacity of the existing system and divert 70% of the water within the Main North Road drain away from Grand Junction Road to be discharged directly to the North Arm East open channel which will reduce the effects of overland flows and local flooding.
The North Arm East catchment area covers the suburbs of Northfield, Northgate, Lightsview, Clearview, Broadview, Sefton Park, Blair Athol, Enfield, Kilburn, Gepps Cross and Wingfield.
For any questions regarding the project please contact Nick on 8405 6600 or email firstname.lastname@example.org


China Three Gorges Project Corporation plans to break ground for two power plants along the Yangtze River which combine to generate more electricity than the Three Gorges project.
The construction of Xiluodu power plant which has installed capacity of 12.6 million kilowatts is under way while Xiangjiaba power plant designed to have installed capacity of 6 million kilowatts is scheduled to be launched by the end of the year.
Feasibility studies are being made on Wudongde and Baihetan power plants. The four will have a total stalled capacity of 38.5 million kilowatts and generate 174.4 billion kilowatt-hour electricity on average a year. That doubles the power generated by the Three Gorges project.
11.7 billion yuan of bidding will be open for the Three Gorges project, Xiluodu and Xiangjiaba in 2005.
By People's Daily Online


CONTROL YOUR FLOW
Manual Globe Valves allow for direct control of flow in a pipeline. When using this manual valve, the flow control is managed by lifting the valve plug. It can be used in a fully or partially open position. When used in the partially open position, the inherent design of Globe Valves help reduce the risk of damage to the valve seat or valve plug.
We also carry Control Globe Valves.
*Some manufacturers may not be available for distribution in all states


Electric Water Pumps
Buy quality submersible electric water pumps online from Hyundai Power Products. Our range of Electric Submersible Water Pumps are designed to cover every possible pumping application in domestic and professional settings.
These submersible pumps feature models designed for both dirty water and clean water and are housed in plastic or stainless steel cases.
The Hyundai range of 1.5" sump pumps can be used for drainage, flood water or irrigation. Commonly used as a hot tub pump, swimming pool pump or to clear ponds or flooded areas such as basements, cellars or ditches.
Each pump is fitted with a 13a UK 3-pin plug for use on mains power sockets and has a 10m cable for impressive reach.
Shop for 1.5 inch electric sump pumps with the official UK Hyundai distributor.


Crompton 0.5 HP Pressure Pump with Pump Control (Multicolour)
Unit price/ per
Crompton greaves pressure pump is ideally used for pressure boosting in domestic bathrooms, kitchens, washing machines, shower cubicles. It is fitted with a automatic pressure kit which switches the pump on and off based on turning on and off of the tap. It is ideal for running 3-4 bathrooms and can also run jaguar and multi nozzled shower heads and units.
Package Contents:1 Pump and 1 Pressure Control
Mxvolt automatic pump controller, Type - Submersible


Saudi Arabia to complete water storage project
Saudi Arabia’s National Water Company has completed 66% of the strategic water storage project, revealed a senior official
Saudi Arabia’s National Water Company has completed 66% of the strategic water storage project, revealed a senior official.
Fawaz Bahlas, Jeddah businesses director at the NWC said that the project aims to build 21 concrete cisterns to preserve 4 million cubic litres of water.
“The entire project’s estimated cost is over SR1.5 billion. The project has completed its first phase by filling up 11 cisterns with a total capacity of 2 million cubic litres. Each cistern has the capacity for 187,500 cubic litres,” said Bahlas.
He also said the second phase of the project is 70% complete. “In the second phase six cisterns with a total capacity of a million cubic litres will be built. The third phase of the project is 31% complete and it includes the building of four cisterns,” said Bahlas. He also said the total capacity for the third phase is a million cubic litres.
“Each of the cisterns has a capacity of 250,000 cubic litres with a total cost of SR451 million. The project, started in 2012, aims to solve the issue of water shortage in various neighbourhoods and districts of Jeddah,” said Bahlas.


Boiler Water Level Sensors
Marine boiler level differential pressure This boiler level measuring method uses a differential pressure measuring system with "wet leg".
Marine boiler level capacitance electrode An insulated electrode is placed in the boiler and the length should be sufficient to reach the water at all acceptable levels.
Marine boiler level conductivity electrode It's normally one boiler level electrode for emergency low water level alarm, or two electrodes if also high level alarm is required.
Marine boiler level float Boiler level float switches have been used for decades as level switches in boilers, but nowadays electrodes have replaced them.
Marine boiler level displacer A boiler level displacer (a float heavier than the water) is suspended to a spring balance by means of a stainless steel cable or a rod.


Significant water-level declines in the Mississippi River Valley alluvial aquifer prompted the need to better understand the flow system in the aquifer which, in turn, led to the development of digital groundwater flow models of the alluvial aquifer. Two models were developed in the eastern Arkansas study area with the Arkansas River dividing the study area and functioning as a hydrologic boundary to the models. Both models simulate groundwater flow in one layer with recharge entering the aquifer from head-dependent surface infiltration through the overlying confining unit and from seepage through river beds. Digital models were used to simulate flow in the aquifer during seven stress periods between 1918 and 1987. Pumpage used in the simulations ranged from 83,400,000 to 412,000,000 cu ft/d in the north model and from 12,800,000 to 58,500,000 cu ft/d in the south model. Three different spatial and temporal pumpage scenarios were tested to simulate pumpage stress in the models. The pumpage distribution used in the calibrated model was based on a combination of all three scenarios. Several criteria were used during model development to determine how well the model simulated conditions in the aquifer. Potentiometric maps of model-computed water levels were compared to measured data to check the computed water levels and direction of flow. Hydrographs of observation wells were compared to computed water levels at corresponding model cells to assess the temporal distribution of pumpage. A root-mean-square error analysis was performed during calibration by comparing observation-well and model-computed water levels for 1972. Sensitivity analyses were performed to determine the effects of changes in input parameters on computed heads (water levels). Both models were sensitive to changes in recharge and pumpage but the south model generally was less sensitive than the north model.


Mieville is a 70MW hydro power project. It is located on Salanfe river/basin in Valais, Switzerland. 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. The project construction commenced in 1947 and subsequently entered into commercial operation in 1950. Buy the profile here.
The project is currently owned by Alpiq Holding with a stake of 100%.
Mieville underwent through rehabilitation & modernization during 2009-2011. The project generated 97 GWh of electricity.
The hydro power project consists of 2 turbines, each with 35MW nameplate capacity.
The project construction commenced in 1947 and subsequently entered into commercial operation in 1950.
For more details on Mieville, buy the profile here.


| Australia|| 0|
| Kincardine Bridge, Alloa Swing Bridge|
The Forth River is a perennial river located in northwest Tasmania, Australia.
Forth River (Tasmania) Wikipedia
The lower part of the river features Lake Barrington, which is a major venue for competitive rowing. It is also the location of the village of Forth.
The river is a part of the Mersey-Forth power project, which includes seven hydroelectric power stations. Three hydroelectric power stations have been built on the Forth River itself, including Cethana Power Station (impounding Lake Cethana); Devils Gate Power Station (impounding Lake Barrington); and Paloona Power Station (impounding Lake Paloona.)
The upper part of the river catchment area is also known as the Forth River High Country and contains the Cradle Mountain-Lake St Clair National Park with the source of the river being on the southern slopes of Mount Pelion West.
The catchment for the river is 1,126 square kilometres (435 sq mi).


The wide range of the K+ series is designed to pump wastewater containing gases and solids. The excellent performance of the hydraulic profiles ensures maximum efficiency. The special compact size of the pump ensures total reliability and ease of installation The K+ Energy pumps are designed to ensure premium efficiency thanks to the IE3 efficiency motors. The patented “DryWet” cooling system allows use both in the tank and the dry chamber. Extreme reliability, sturdiness and durability thanks to the innovative K+ non-stop anti-clogging system. Ideal for the treatment and transport of wastewater, industry and stormwater. The K+ ENERGY range is now more extensive thanks to the new electric pump models with twin-blade open impellers, which ensure excellent efficiency above 80%.


Performance prediction of multistage doublesuction centrifugal pump based on numerical simulation
(1.College of Hydraulic Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024,China; 2. Shanxi Yuncheng Beizhao Yellow River Diversion Project Construction Management Bureau, Yuncheng, Shanxi 044000,China)
Based on the Reynolds timeaveraged N-S equations, the SST k-ω turbulence model and the SIMPLEC algorithm, the 3D steady turbulent flow within a multistage doublesuction centrifugal pump, which was installed in Xiecun Pump Station of Beizhao Yellow River Diversion Project, was simulated.The velocity vector field and other information at different operation conditions were obtained, the pump performance was predicted and was compared with the field test data. The results show that the flow fields are uniform in both the suction chamber of the firststage and the volute of the secondstage.Because of the complicated structure of crossover and fluid itself inertia, a vortex region is found in the abrupt expansion region of the crossover, and the size of the vortex region is related to flow rate. The predicted head is consistent with the field test data, and the maximum error between them is 2.7%. The hydraulic efficiency curve estimated against capacity resembles to the pump efficiency curve measured in the pump station as well.The simulation of flow within a pump can provide a reference for performance prediction and structure optimization during the pump design process in an engineering project.
Wang Xiuyong, Wang Canxing. Performance prediction of centrifugal pump based on the method of numerical simulation [J]. Fluid Machinery,2007, 35 (10): 9-13. (in Chinese)
Yuan Shouqi,Ni Yongyan,Pan Zhongyong, et al. Unsteady turbulent simulation and pressure fluctuation analysis for centrifugal pumps[J]. Chinese Journal of Mechanical Engineering, 2009, 22 (1): 64-69.
Spence R, AmaralTeixeira J. A CFD parametric study of geometrical variations on the pressure pulsations and performance characteristics of a centrifugal pump[J]. Computers ＆ Fluids, 2009, 38(6): 1243-1257.
Zhang Desheng, Shi Weidong, Chen Bin, et al. Unsteady flow analysis and experimental investigation of axialflow pump[J]. Journal of Hydrodynamics,2010, 22(1): 35-43.
Zhou Lingjiu, Wang Zhanmin, Jiang Dongzhi. Computation of unsteady flow and performance prediction for centrifugal pump [J]. Journal of Drainage and Irrigation Machinery Engineering, 2010,28(4):286-290. (in Chinese)


US National Weather Service Lower Mississippi River Forecast Center. likes · 9 talking about this. Facebook posts do not always reflect the most.
Rollin' on the River – Mississippi Roads
Latest River Stages & Forecasts · Mississippi River · Atchafalaya River · Amite River · Comite River · Tickfaw River · Natalbany River · Tangipahoa River · Additional.
River Stages ; Chester, Mississippi River, ft. ; Thebes, Mississippi River, ft. ; New Madrid, Mississippi River, ft. ; Caruthersville, Mississippi.
The Lower Mississippi River (LMR) predictably overtops its banks during the spring flood, resulting in strong but temporary hydrological connection with. Explaining River Stages · Stage – the level of the water surface of a river or stream above an established gauge datum at a given location. · Bankfull Stage –. Water Level. For current river stages and forecasts click on the following link: Mississippi River Stages. Additional Information. Lower Mississippi River.
Stream Name: Mississippi River Gage Zero: 0 Ft. GAGE Flood Stage Ft. Record High Stage Ft. Longitude: Latitude: River Mile.: Lower mississippi river stages
|Hand foot mouth disease contagious||Brooklyn adult learning center|
|NEUTROGENA RAPID WRINKLE REPAIR SERUM||876|
|ATOMIC STRUCTURE WORKSHEET ANSWERS|
|Lower mississippi river stages||740|
|Square root of a negative number||527|


The U.S. Army Corps of Engineers Los Angeles District is overseeing a $4M bridge construction project in Nogales, Ariz. The project will consist of constructing a two-span, I-girder concrete bridge, install associated road base and approach slabs, and placing grouted riprap both upstream and downstream of the project in the channel.
LEAVE A COMMENT
NOGALES, AZ, US
This work, Nogales Wash bridge project back underway, by CPO Daniel J. Calderon, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.


Development of a Flapper Check Valve with two lines on the outlet side
For prototypes of road vehicles, we develop a flapper check valve with two lines on the outlet side to precisely control the flow of the cooling medium and thus the water temperature.
The new flapper check valve developed by SOBEK enables the customer to meet the high-performance requirements for efficiently controlling the volume flows of the cooling circuit.
The task – Integration of an additional cooling circuit
The power density of modern combustion engines leads to higher performance requirements for cooling circuits. The cooling circuit of a turbocharged combustion engine requires a flapper check valve with two lines on the outlet side to optimize cooling efficiency. We produce this valve by using SLM to realize challenging flow paths and lightweight structures.
The challenge – Does water always flow down the mountain?
Sometimes there are unpleasant interactions between connected circuits. The medium flows backwards, although it should flow forwards. With the help of CFD we analyze the media flows and optimize the design by eliminating the „media flow backwards“. We validate the results on the test bench and confirm the calculations.
How to proceed – From concept to solution
– Development of a flapper check valve for the specific requirements
– Design optimization of volume flows and pressure loss by CFD analysis
– Validation of the concept on the test bench
– Construction and delivery of customer-specific units


India will add 3100 MW hydropower generation capacity, built at a cost of $5.5 billion, this fiscal year, expanding the current installed capacity of 46.85 GW by 6.6 per cent.
These hydropower projects are in Uttarakhand, Himachal Pradesh, Arunachal Pradesh, and Kerala.
Uttarakhand has two central sector projects: Tehri pumped storage project of 1000 MW and Naitwar Mori of 60 MW.
Subansiri Lower project in Arunachal Pradesh will have 1000 MW of the planned 2000 MW project commissioned this financial year.
There will be one central project (Parbatti II, 800 MW) and one private project (Tidong I, 150 MW) due to be commissioned in Himachal Pradesh.
There are two state sector projects scheduled for commissioning in Kerala (Pallivasal, 60 MW and Thottiyar, 40 MW).


Cofferdam for Cannelton Hydroelectric Project, Hawesville, KY
The project consisted of the design and construction of a cofferdam located on the south side of the Ohio River adjacent to the Cannelton Locks and Dam, about 25 miles northeast of Owensboro, KY. The existing USACE Cannelton Locks and Dam are located at Ohio River Mile 720.7. The construction of the marine cofferdam and cut-off wall allowed for the completion of the powerhouse excavation.
The cofferdam and excavation was being completed to allow for the construction of the 82MW hydro-electric power plant. The cofferdam project included 1.233 million cubic yards of excavation and embankment; 515,000 square feet of cement-bentonite cut-off wall; a 600,000-ton marine-placed rock and sand cofferdam; a dewatering system; flooding structure; and instrumentation. The work was fast tracked due to unpredictable river conditions and imposed schedule constraints.
After the cofferdam and powerhouse construction was completed, water was be diverted from the locks and dam through a powerhouse to generate an average annual output of approximately 390 GWh. The powerhouse housed three horizontal bulb type turbine and generating units with an estimated total rated capacity of 82MW. The maximum gross head at this plant is approximately 25 feet.
Market : Federal Heavy Civil
Service: Marine Infrastructure
Project Value: $60 million
Start Date: 2009
Completion Date: 2010


FREMONT Trucco Construction of Delaware, Ohio, has been awarded the contract for the first phase of the city s new 730-million-gallon reservoir.
Trucco s low bid of $5.2 million was well under the estimated cost of $7.8 million. The firm is expected to begin work next month.
Plans call for the new reservoir to be operational by May of 2011. It will replace the Ballville Dam on the Sandusky River as the city s water supply source. The dam will be torn down.


- PINFL EW Series Seawater Pump
- 16L Stainless Steel: EW40 EW50 EW55
- 2205 Duplex Stainless Steel: EWU40 EWU50 EWU55
- Can provide gearbox 1:1.87/1: 2.23/1: 2.72
|EW Series High Pressure Plunger Pump|
|Model||Flow||Pressure Range||Pump Speed||Bore||Max Liquid Temp.||Shaft Dia.||Weight||Dimensions|
|L/min||bar||r.p.m||mm||71℃||50mm||290 kg||775*479*332 mm|
EW Plunger Pump, also called chemical pump, osmosis pump, custom pump, gear pump, high pressure plunger pump.
It is widely used in high pressure, large flow and occasions where the flow needs to be adjusted.
EW series is 316L stainless steel pump, EWU series is 2205 duplex stainless steel pump. EW series pumps can be matched with gearboxes and support customization.


JAKARTA (RambuEnergy.com) – Indonesia added 408 MW of renewable energy in 2017, a large portion of it came from the geothermal power plant, as much as 315 MW, the state-owned electricity company PLN said.
As of end last year, the country’ geothermal power plant installed capacity has increased to 1,774.5 MW. The new capacity came from geothermal power plant (PLTP) Sarulla Unit 1, PLTP Sarulla Unit 2 with capacity of 110 MW each, PLTP Ulubelu Unit 4 with installed capacity of 55 MW as well as PLTP Lahendong V and VI with installed capacity of 40 MW
The other renewable energy project that came online was bio-energy power plant (PLTBio with a capacity of 24.4 MW, boosting the capacity of PLTBio to 189 MW as of end 2017.
Micro-hydropower plant added 58.51 MW, increasing the total capacity of hydropower plant to 381 MW.
Solar power plant (PLTS) added 1 MW, contributed by PLTS East Sumba, raising the total solar power in the country to 16 MW. Meanwhile, hydropower plant (PLTA) added 10 MW, coming from PLTA Pakkat, boosting the total installed capacity of hydropower plant to 6,370.5 MW.
The total national installed power capacity last year reached 52,241 MW, in which renewable energy contributed 12% to the energy mix.
As for 2018, the government targets to add 660 MW of renewable energy, coming from geothermal power plant (PLTP) 250 MW, PLTS and hydropower plant 218.52 MW and PLTBio 191.7 MW.


Doulingzi is a 70.5MW hydro power project. It is located on Jinqian river/basin in Hubei, China. The project is currently active. It has been developed in single phase. The project construction commenced in 1993 and subsequently entered into commercial operation in 2002.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||70.5||70.5||–||Active||Hubei, China||Shiyan Hydropower Development|
The project was developed by Shiyan Hydropower Development and is currently owned by Guodian Daduhe New Energy Investment with a stake of 63.04%.
Doulingzi is a run-of-river project. The hydro reservoir capacity is 484 million cubic meter. The project generated 212 GWh of electricity.
The hydro power project consists of 3 turbines, each with 23.5MW nameplate capacity.
The project construction commenced in 1993 and subsequently entered into commercial operation in 2002.
Power Purchase Agreement
The power generated from the project is sold to State Power Grid Corporation of China under a power purchase agreement.
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.


ISLAMABAD, Oct 9 (APP):Private Power Infrastructure Board (PPIB) is facilitating 24 Independent power producers (IPPs) projects having accumulative capacity of 12,551 MW to be commissioned till 2028.
Giving details of the projects, official sources told APP here Wednesday that 902 MW would be added to the system by December with completion of 102 MW Gulpur Hydropower project and two units of 1263 MW RLNG base project near Trimmu Barrage Jhang. Similarly, 463 MW would be added to the system during 2020 with commissioning of third unit of 1263 MW RLNG base project near Trimmu Barrage Jhanng, they said.
They said four projects having total 2040 MW capacity would be start generation by 2021 and these were 330 MW each Thar Coal Based Power plants, 660 MW Thar coal power project at Port Qasim Karachi and 720 MW Karot Hydropower Project.
In 2022, four power projects with accumulative capacity of 2160 MW would likely to be completed which included 330 MW Thar Coal, first unit of 1320 MW Thar coal power project, 870 MW Suki Kinari hydropower project and 300 MW coal plant at Gwadar.
Moreover, 1,980 MW and 2,124 MW would be added to the system during 2023 and 2024 respectively. The projects were included 700 MW Azad Pttan Hydropower , 1,124 MW Kohala Hydropower, 300 MW Ashkot Hydropower , 640 MW Mahl Hydropower, 450 MW Athmuqam Hydropower and 82 MW Turtonas=Uzghor hydropower projects. Similarly, seven projects with total capacity of 1,710 MW would be completed during 2028. The sources said that these projects were at different stages of implementation.
It is pertinent to mention here that PPIB was created in 1994 as a “One-Window Facilitator to promote private investment s in the power sector.


Hydel projects complete
Damauli, June 25:
The construction of the 28-KW Jhyalakhola-II micro-hydropower project in Muchhok village development committee of Gorkha is complete.
The power project was completed at a cost of Rs 4.13 million, according to Sarita Gurung, president of Regional Renewal Energy Service Centre, Rural Empowerment Society, Tanahun district. The project has benefitted 1,695 people of 339 households.
The organisation has also constructed eight more micro-hydropower projects in various parts of Gorkha district.
Meanwhile, a report from Panchthar district said that at least 850 households have benefitted after the completion of the construction of four small hydropower projects. The projects were implemented by Energy and Environment Division. Program officer of the project Kamal Chemjong said Hamse Nibukhola micro-hydropower project (12 kw), Nibukhola Aangsarang micro-hydropower project (16 kw), Harihripulaya micro-hydropower project (45 kw) and Thadokhola micro-hydropower project (12 kw) were constructed in the first phase.
The project programme plans to construct five more micro-hydropower projects in the second phase in the district.


Rooftop Attenuation System for Blue-Green Roofs
Nidaroof forms part of a blue roof system designed for the storage and temporary attenuation of rainwater on flat roofs. Slow the rate at which rainwater is released from the roof and form part of a rooftop sustainable urban drainage solution (SuDS).
Undergound Stormwater Management System
The Nidacell EP is a lightweight rainwater storage system designed and manufactured by Nidaplast. Nidacell EP can be used for underground stormwater retention, attenuation and infiltration projects to meet the SuDS requirements of the site.
Undergound Geocellular Attenuation and Infiltration
The Azbox stormwater system is a geocellular attenuation, infiltration, and temporary storage solution for rainwater, stormwater, and surface water that can be integrated into any sustainable urban drainage scheme to help manage rainwater at source.


Extract from Water Engineering Australia Magazine June 2012
TCM Civil was awarded by State Water the contract to replace approximately 3.7 klm’s of prestressed concrete pipeline with steel pipeline for the Fish River Water Supply Scheme.
Construction commenced in July 2011 with the expected completion in June 2012. Construction includes:
- • Construction of 0.66 km long steel OD 914 – RRJ pipeline,
- • 2.5 km long steel...


This project involved the installation of a hydroelectric turbine unit within the existing powerhouse.
NI Environment Agency
Works on this project involved:
- Construction of a new intake structure and inlet works at the entrance to the millrace
- Localised repairs to the existing Millrace
- Laying of a Penstock from the Millrace to the turbine house intake tunnel
- Working within the existing underground tunnel and turbine chamber
- Alteration works to the existing tailrace including the manufacture and fixing in position of screens
- Modifications within the powerhouse.
Services & Expertise
This project built on Farrans experience in the renewables sector, demonstrating the capabilities to adapt existing infrastructure to meet the needs of the future.


Blackstone 275kV Substation Project
The works consisted of supplying and installing a new
pre-cast stormwater drainage system for the new substation location. Works also included tying the new stormwater system into the already existing one. IDC Contracting collaboratively worked in with other subcontractors on-site to ensure the stormwater system was kept live whilst the bulk earthworks were being advanced.
Supply and install over 550Lm of pre-cast stormwater drainage pipework.
Supply and install 28 stormwater drainage structures including outlet structures.
The works were required to be carried out in a restricted area with some work having to be performed in confined spaces.
General Plant Hire to assist with other works on-site.