Hydropower Development for Hawaii
A site specific, evaluation technique is being studied to examine hydropower potential based on an operations research approach for micro- and mini-hydropower systems under established...
Appropriate Design and Construction of Conduits for Small and Mini Hydropower
The success of smaller hydro schemes often lies in identifying feasible and economic waterway systems to develop relatively high heads between low intake weir and powerstation. This paper...
Design of Siphon Penstocks for Low Head Hydros
Siphon penstocks have been designed and constructed at Jim Falls and Winter, Wisconsin at existing dams. Both hydropower projects are located on the Chippewa River. The design of these...
Single Conduit Dam Design
In today's arena of increasingly higher costs for major dams, planners and designers are continuing to look into ways of reducing the overall costs for the development of...
Bath County Tunnel System/Remedial Treatment Program
The Bath County Pumped Storage Project, owned jointly by Virginia Electric and Power Company and Allegheny Generating Company, is located 70 miles (112 km) north of Roanoke, Virginia....
High Pressure Grouting of the Bath County Tunnel System
A major grouting program was completed at the Bath County Pumped Storage Project between March and September 1985. High pressure grouting for seepage reduction was completed in a total...
Case Study: Siphon Penstock Operations
Hydroelectric power plants utilizing siphon penstocks operating near Winter, Wisconsin and at Jim Falls, Wisconsin have met or exceeded expectations after fine tuning of the vacuum and...
The Design of the Nanpil River Hydropower Project
In 1980, the State of Pohnpei (then spelled Ponape) asked the Pacific Ocean Division of the U. S. Army Corps of Engineers to investigate the feasibility of constructing a hydroelectric...
Prototype Experience With Acoustic Flowmeters
The acoustic (ultrasonic) flowmeter offers many advantages over other methods for measuring discharge in penstocks for turbine performance tests. It is nonintrusive, inexpensive and may...
Tracer Dilution Flow Measurement Application to Short Penstock Length
Absolute performance evaluation of hydro-turbines requires the determination of flowrates. Flow measurement is probably the most difficult aspect of determining a unit's efficiency....
Open Channel Flow Resistance in Horseshoe Conduits
An experimental study of open channel flow resistance in horseshoe-shaped conduits is reported. The friction factor is shown to increase approximately 20 percent in comparison to values...
Design and Performance of a Siphon Penstock
Siphons can be a cost effective alternative to more traditional means of conveying water to hydroelectric turbines. The City of Ann Arbor, Michigan selected a siphon as the most cost effective...
The Pelican, Alaska Hydroelectric Station
In August 1983 Pelican Cold Storage directed KPL to install a new 600 kW turbine, synchronous generator, controls and penstock transition section. This new equipment was to fit upon the...
Hydroturbine Intake and Penstock Geometry Design
This paper studies the intake design of one hydroturbine site and the penstock trifurcation design of another site. A hydroturbine site had been built and was in operation when vortexing...
Siphon Penstock?An Economic Way to Develop Hydros
As part of the 48 MW Jim Falls Hydro Redevelopment Project by Northern States Power Company, a minimum flow powerhouse was constructed with a siphon penstock. The Minimum Flow Unit (MFU)...
Hydro Systems Evaluation on Personal Computers
The programs for selecting the equipment and determining the average annual energy have been separated from the detailed financial analysis. The BASIC language was selected for the first...
Characterization of Soil Arching Above Buried Conduits
Conventional ways of assessing the effects of soil arching over buried conduits were examined by means of finite element analyses. It was found that neither of the conventional soil arching...
Inspection/Condition Analyses of Large Underground Pipelines
Inspection/Condition Analyses of Underground Pipelines (sewers and conduits) will be a necessary function of the pipeline Owner/Operator. The Condition Analyses and Inspection phases are...
Response of Buried Flexible Plastic Conduits Under Loading
Structural performance of 75 mm and 100 mm diameter plastic conduits embedded in Lloyd clay were examined experimentally in a laboratory soil bin, and numerically by the finite element...
Hydrotest Rupture of Penstuck Liner at Bath County
Bath County is the construction site of Virginia Electric and Power Company's pumped storage project. Rupture of a penstock liner during hydrotest at high pressure threatened...
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