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Checking Turbine Performance by Index Testing
This paper discusses an index testing procedure used by TVA for measuring performance levels of its hydroelectric units. It also describes a current program for retesting generating units...

New Concepts for Prelininary Hydropower Design
Hydropower generation on steep mountainous streams where storage is impractical can usually be made economical if: the flow duration curve shows sufficient energy available in the high...

Design and Manufacture of Turbine Runner Blades Using CAD/CAM-Technology
Interactive blade design, fluid flow analysis, stress analysis and NC-matching of both model and prototype blades are working from a common data base and are demonstrated in this paper....

Computerized Engineering for the Hydraulic Design of Hydro-Turbine Stay Vanes
To design a turbine stay vane as an integral part of the spiral case/stay vane/wicket gate waterpassage, both the vane geometry and the gate/vane position must be developed and analyzed....

Advance Prediction of Flow-Induced Variations
Frequency analysis of hydraulic vibrations has been applied using a transfer matrix and impedance method. The computer program is given for the self-excited and forced vibrations, together...

Open Flume Turbine Intake Geometry
An inexpensive physical hydraulic model was used to investigate the geometry of two different open flume turbine intakes. One intake utilized an inverted, fabricated pump bell type of...

Diffuser Performance for Draft Tube Applications
Available information on diffuser performance is summarized in relation to draft tube applications. This paper is particularly directed at the implications of basic research with these...

Hydraulic Machines Model Acceptance Tests
The article begins with a description of the modern test installations, giving the dimensions of the models most frequently used and the head heights. Attention is then given to the most...

Control System Design Considerations for Small Hydro Projects
This paper deals with the philosophy that must be embraced when specifying a fast track small hydro project. The major areas discussed are: the role of control systems in the context of...

Rapid Filling of Reservoirs
The rate of filling a reservoir, particularly for the first time, is governed by various factors. While economic considerations may favor rapid filling of reservoir to operational levels,...

Analysis of Expanding the Wolf Creek Powerplant
The Nashville District, Corps of Engineers, is examining the feasibility of expanding the Wolf Creek powerplant to increase its peaking capability. The economic analysis of peaking expansions...

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)...

Negotiating Environmental Protection Measures with Resource Agencies: Twin Falls and Weeks Falls Hydroelectric Projects, Washington
The planning and licensing process for the Twin and Weeks Falls Projects involved resolution of numerous regulatory and environmental issues, including the need for cumulative impact analysis...

Coordinating Engineering and Environmental Activities in Hydropower Development
This paper reviews the role of hydropower project personnel, particularly the interaction between project management, engineering, and environmental sciences staff in project planning...

Study of River Stage Fluctuations Resulting from Possible Operations of the Susitna Hydroelectric Project
Operation of the project to follow load may result in discharge and river stage fluctuations which could affect habitats and fish food sources. Limitations on hourly, daily, and weekly...

Optimal Dispatch of Hydroelectric Systems
This paper presents a reliable and computationally efficient method for solving the optimal hydro dispatch problem. Moreover, this method guarantees a true optimal solution when the units'...

Arctic Stream Scour: A Case History
A small arctic stream on the North Slope of Alaska was monitored through one hydrologic cycle. The flow rate of the stream and the progress of its erosion through a breach into an adjacent...

The Transport of Crude Oil Under Saline Ice
A mathematical model was developed to describe the forces acting on an oil slick under saline ice in the presence of a water current. The model was verified through a set of laboratory...

Upper Delaware River Ice Control?A Case Study
During February 1981 a castastrophic breakup ice jam occurred along a reach of the Delaware River near Port Jervis, NY, causing 14. 5 million in damages. In February 1982 another breakup...

Quality Assurance/Quality Control: Alternative Approaches to Reduce Failures
Efforts to achieve quality on construction projects usually center around code-compliant design, thorough specifications, and careful inspection. The alarming increase in both the frequency...

 

 

 

 

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