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...
Tarbella?Third Extension Project Units 11 to 14: 440 MW Francis Turbine Design
At Tarbela Dam in northern Pakistan, the Third Extension Project, units 11 to 14 of 440 MW each, is presently under construction. When completed in 1992, the multipurpose hydro-irrigation...
Digital Data Acquisition and Performance Testing of Hydroelectric Equipment
The U.S. Army Corps of Engineers Hydroelectric Design Center has elected to use digital data acquisition methods when conducting performance tests of hydroelectric units. Transducers have...
Renewal of the Burt Dam Generating Station
The present redeveloped hydro facility operates as a 300 kW run-of-river station automated by a head pond level controller which adjusts turbine setting to match available river discharge....
Turbine Conceptions for Low Heads and Their Application in US Hydro Power Stations
To improve the feasibility of small power plants standardized units were developed. The bulb turbine technology as well as the pit-type conception improve the feasibility of larger plants....
Foundation Engineering
Current Principles and Practices
The proceedings of the 1989 ASCE Foundation Engineering Congress (entitled Foundation Engineering: Current Principles and Practices) address advances in the state-of-practice and in research...
Building A Better Wetland
Nouri described an engineering plan designed for the National Audubon Society to restore the Ballona Wetlands of southern California, which has been severely degraded by population growth,...
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...
Beautiful Bridges
There are no rules for creating beautiful bridges. While talent and experience count, bridge design is quite complex and collaboration between highway engineers, architects, and landscape...
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...
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...
New Roof for an Aging Temporary
The wartime temporary design of a 1942 industrial building justified use of green timber for its roof trusses and higher than usual allowable design stresses. Some 45 years later, a new...
Building the Perfect Playpen
Today, the stadium itself has become almost as important as the teams playing the game. Eschewing the standard cookie-cutter design of the 60s, clients and owners generally have a laundry...
Isolated Examples
The technology of seismic isolation, also known as base isolation, is being used to protect the contents and occupants of a building as well as its structure. Isolators are led-rubber...
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