Successful Behavioral Devices for Fish Protection
Since 1987, the Electric Power Research Institute (EPRI) has been sponsoring studies of behavioral barrier devices for protecting fish at hydroelectric facilities. Primary emphasis has...
Evaluating Uplift Pressures for Concrete Gravity Dams
An approach for evaluating uplift and dam foundation conditions, which resulted from the initial phases of an Electric Power Research Institute (EPRI) study is presented. An earlier study...
Experience with the Application of Fully 3D Potential Flow Analysis to Runner Design
Hydraulic turbines come in various shapes and types depending on their operating conditions. Their performance characteristics depend largely on the runner which is the most difficult...
Predicted and Observed Axial Behavior of Piles
Results of a Pile Prediction Symposium
This publication presents the results of a pile capacity event that was held at the Lakefill site on the Evanston Campus of Northwestern University in conjunction with the 1989 Foundation...
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...
Seismic Codes:Preparing for the Unknown
Few eastern communities follow seismic codes because few communities view earthquakes as a risk. Although California-sized quakes have hit Charleston, St. Louis, they've done...
Resilient Moduli of Soils
Laboratory Conditions
Historically, structural pavement design has been based on static testing techniques, such as the CBR. More recently, the profession has placed increased emphasis on repeated load testing...
The Great Quake: On Site Reports
Written within two weeks of the Oct. 17, 1989 California earthquake, these comments cannot be considered definitive. But they do stress two points: 1) Earthquake codes do work. Buildings...
Roller Compacted Concrete II
This volume includes the papers presented at the 1988 ASCE Specialty Conference on Roller Compacted Concrete. Included in the proceedings are experiences of roller compacted concrete dam...
Pumped-Storage Project Site Selection
The paper presents a case history in the selection of a site for a large pumped-storage project for Oglethorpe Power Corporation. The case history illustrates how a large number of potential...
Pumped Storage and Compressed Air Storage, A Comparison
Pumped storage hydroelectric power plants and compressed air energy storage (CAES) plants are used for peaking and intermediate duty on electrical utility load systems. In comparing pumped...
Hydropower retrofit at the Toledo Bend Dam
Since the early 1970's, the Authorities have been examining the possibility of utilizing sluiceway releases to generate hydroelectric power to meet most of the demands of...
A Case Study: Relicensing of Pensacola Hydropower Project
The current license for the Pensacola Hydropower Project (orginally licensed in 1939) will expire in 1988. The relicensing process for the project currently is underway. During the consultation...
Studies of Fish Protection Methods at Hydroelectric Plants
Five largely untested but economical fish-protection systems were tested at sites throughout North America. The process of selecting laboratory and field test sites was completed at the...
Pumped Storage and Power System Operations
The 2100 megawatt Bath County pumped storage power station began commercial operation in December 1985 as a jointly-owned project of Virginia Electric and Power Company (Virginia Power)...
The Design of the Outlet for the New Koepchenwerk Pumpstorage Plant
The Koepchenwerk Pumpstorage Plant (1930) is going to be replaced by a new plant with a 150 MW Pumpturbine in a shaft. This paper explains the reasons for this replacement and gives a...
Frazil Ice Control Using Electromechanical Cibrators and Ice-Resistant Coatings
Two methods, using electromechanical vibrators and ice-resistant coatings, were studied in a small-scale test conducted at the U. S. Army Cold Regions Research and Engineering Laboratory...
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...
Free-Rotor, River-Velocity Turbine
This paper discusses the development of a very simple and inexpensive underwater turbine which will extract power ranging from a fraction of a HP up to 20 HP from the velocity of the running...
Performance Evaluation of Rim-Drive Turbines
This paper will provide a performance evaluation of the technical and economic advantages and disadvantages of the rim-drive turbine after more than one year of operation. Technical aspects...
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