Hydroelectric Generator Rewinding Pitfalls and Means to Ensure Success
The failure or success of generator rewinding begins well before the actual rewind, and many of the pitfalls can be avoided if owners take some very important steps prior to the rewind...
Replacement of Computer Control at John Day Powerhouse
One of the first projects chosen by the Corps of Engineers for computer control was the John Day Project on the Columbia River. John Day powerhouse was completed in 1971 and has 16 generators...
Vibration Problems of Penstock Piping for a Vertical Tubular Hydraulic Turbine
Excessive vibration amplitudes were experienced in the vertical gated tubular units at the Great Falls Hydroelectric Project located in the City of Paterson, New Jersey. Vibration amplitude...
Computer Aided Design of Small Hydro Turbine?Phase II
Ateliers Bouvier have been expanding the use of its computer aided design (CAD) system during these last four years, and the aim of this paper is to present some additional aspects of...
Reduced O&M Costs through Better Metallurgy
There are many areas in hydroelectric power plants where better materials of construction can reduce operation and maintenance (O&M) costs. Some of the most nagging problems deal...
Analysis of Concrete Gravity Dams Using Microcomputers
Monenco Consultants Limited has developed a microcomputer program entitled 'DS2' for the stability analysis of concrete gravity dams. This paper discusses this...
Transient Analysis of the Finchaa Hydroelectric Project
An iterative computer simulation procedure called LIQT (Liquid Transient), which performs simulations of hydraulic transients in closed conduit hydro-power systems, is used to estimate...
Hydropower Analysis Using Electronic Spreadsheets
A sequential streamflow routing procedure is recommended to overcome the inadequacy of the conventional duration curve analysis, especially in cases involving multiple intakes for capturing...
Modeling Sedimentation Problems at Hydro Developments
Sedimentation embodies the processes of erosion, transportation and deposition of sediments. At hydro developments, sedimentation can create problems. Computer sedimentation models (CSM's)...
Recent Developments in Computer Based Control Systems for Hydro Power Control
In recent years microcomputer technology has come to dominate electric control systems. Modern control equipment provides many convenient means for ensuring easy, precise and safe operation...
Visualization of Flow Phenomena in a Hydraulic Turbine Based on 3D Flow Computations
The fluid flow in a Francis turbine has been analysed theoretically. Advanced techniques have been used for both the flow calculation and the presentation of the results in order to clarify...
Odors: The Other Effluent
Neighbors object to unpleasant odors emitted at wastewater treatment plants, and dealing with such odors requires tact as well as technology. The operators and engineers must listen to...
CAD Speeds Viaduct Replacement
Lack of an available detour around construction of a major viaduct spurred city officials in Reno, Nev. to build a bridge nearby to serve the purpose. Although funded separately, the permanent...
University Programs in Computer-Aided Engineering, Design, and Manufacturing
The University Programs in Computer-Aided Engineering, Design, and Manufacturing (UPCAEDM) annual conferences provide for the presentation and exchange of ideas related to current developments...
From Guesswork to Guarantee?
Maser describes a project to determine the effectiveness of radar and infrared thermography in detecting deterioration of asphalt overlaid bridge decks. The project, sponsored by the New...
Detecting the Defects
According to estimates, for every dollar spent on preventive maintenance of the infrastructure, $10 will be saved by avoiding emergency repairs after major structural failures. Technologies...
Preventive Maintenance: Fixing What Ain't Broke
Municipalities are often caught in the cycle of built-neglect-rebuild. For bridges, the solution is preventive maintenance: keep the bridges clean and painted, and they'll...
SPIDA Method for Reinforced Concrete Pipe Design
The required supporting strength of buried pipe is affected by the total load that is imposed upon the pipe and the manner in which the pipe is supported by the surrounding soil. The installation...
Computing in Civil Engineering
Computers in Engineering Practice
This book contains papers presented at the Sixth Conference on Computing in Civil Engineering held on September 11-13, 1989 in Atlanta, GA. This series, initiated in 1978, provides a continuing...
Computerized Decision Support Systems for Water Managers
More than 200 public and private water experts from across the United States, Canada, England, France, Belgium, and Portugal gathered at Colorado State University, June 27-30, 1988, to...
Return to search