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Going Sewerless
An in-building wastewater recycling system is an option where lack of sewers, limits on water supply, and special concerns about water quality are obstacles. The system was incorporated...

Beyond Digital Mapping
Northern Ireland, small and compact, geographically well defined with a relatively simple administrative structure, is able to establish a comprehensive Geographic Information System (GIS)...

Journal of Computing in Civil Engineering
The Journal of Computing in Civil Engineering serves as a resource to researchers, practitioners, and students on advances and innovative ideas in computing as applicable to the engineering profession....

Supervisory Control System Design
This paper presents supervisory control concepts, elements of a typical system, testing activities, project management, and the procurement process. Modes of control systems are discussed...

Maximum-Slew-Rate Nonlinear Control for Improved Transient Response in Hydrogenerators
This paper considers a linearized model for fixed blade turbines. This paper demonstrates that constant gate speed bang-bang control holds potential advantages over current control techniques....

Economical Computer Controls for Low Head Hydro
Small power systems based on renewable energy sources such as low head water falls, wind, solar and ocean tides all suffer from stochastic changes in input power. Economically viable,...

Planning for Hydro Projects in an Integrated System
The Incorporated County of Los Alamos, New Mexico (County) is forming an integrated electric utility system to serve the combined loads of the County and the Los Alamos National Laboratory...

Advances in Controls to Govern Mini and Micro Hydropower Systems
Conventional controls available for small hydropower systems are surveyed. Electronic load controls for micro hydropower systems are described. Recent developments in the literature are...

Mt. Tabor Hydroelectric Project
In 1980 the engineering staff of the City of Portland Bureau of Water Works identified several potential hydroelectric sites in Portland water supply and distribution system. The Mt. Tabor...

Design and Application of an Open-Loop Control System for Run of River Sites
This paper compares an open loop control system for variable geometry turbines to a closed loop system for fixed geometry turbines. The control systems were designed to operate three submersible...

Low Head Hydroelectric Development on Madera Canal
The Madera-Chowchilla Power Authority with cooperation from the U. S. Bureau of Reclamation has been successful in the development of four hydroelectric plants at five head drops on the...

North Fork Hydro Electric Power Station
Lake Hemet Municipal Water District has recently installed a hydro power station capable of producing approximately 200 KW of power during years of normal flow and 600 KW during periods...

Hydropower on the Arkansas?A Non-Federal Development
In 1980, Arkansas Electric Cooperative Corporation (AECC) filed preliminary permit applications with the Federal Energy Regulatory Commission for developing the hydropower potential at...

Turbine Efficiency Loss Associated with Draft Tube Aeration
Draft tube aeration is one method for improving the dissolved oxygen content of hydroelectric discharges. A simple analytical procedure is presented for estimating the loss in turbine...

Analysis of Slow Speed vs. High Speed Generation
This paper presents a discussion of the relative merits of each alternative, with emphasis placed on experience gained from projects recently completed. The discussion considers such factors...

The Pacific Northwest Hydropower Data Base Study
The Hydropower Data Base is presently a functional tool for evaluating hydropower in the Northwest. It is a complete system which has been implemented using a variety of crosschecks and...

Friant Power Project: Design and Construction?Non-Federal Power at a Reclamation Facility
Friant Dam, Millerton Reservoir, provides the principal water supply for the Friant Division Central Valley Project of the U. S. Bureau of Reclamation (Bureau). The dam is a 319-foot high...

Economic Evaluation of Alternative Electric Power Developments
A hydroelectric-dominated power system and a thermal-dominated system represent different ways of meeting total electric demand, but with materially different cash flow patterns. This...

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...

Electrical Design of Small Hydro Plants
Major aspects of electrical design criteria for small hydro power plants used in co-generation schemes are: turbine control, generator and excitation equipment selection, protection relaying,...

 

 

 

 

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