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...
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...
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...
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...
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...
Automated People Movers II
New Links for Land Use?Automated People Mover Opportunities for Major Activity Centers
This Proceedings, which consists of 94 papers presented at the Second International Conference on Automated People Movers (APM's) held in Miami, Florida on March 13-15, 1989,...
Tunnel Maintenance Operations
Maintenance considerations during both the design and operational phases are very important to good tunnel maintenance. The use of proper materials able to withstand the rigorous environment...
Maintenance on Underground Subway Construction
The paper discusses maintenance the three types of subway construction in the Bag Area Rapid Transit system: cut and cover, driven tunnel, and prefabricated subaqueous railroad tube. Specialized...
Issues in Computer Based Design/Construction Integration
Design and construction processes are widely regarded as too splintered for industry effectiveness. By improving communication and process integration, reduced costs and improved facilities...
Visual Scheduling
This paper presents a look at new innovative way to provide project schedule. The primary target is in visual scheduling presentation techniques. The systems presented include a system...
The Jet Set
The new maintenance hangar now nearing completion at Charlotte/Douglas International Airport has aluminum standing seam roofing. The unusual material was specified because every ounce...
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...
Rehabilitation of Existing Hydro, Our Oldest Natural Resource
With renewed interest in hydro, many old sites are being rehabilitated to achieve maximum power output and higher efficiencies. Rehabilitated plants are now performing at optimal levels,...
New Vs. Old? A New Capacity Question Facing Hydropower Redevelopers
Determining the extent of PURPA-qualified 'new capacity' which may be created as a result of the modification/rebuild/redevelopment of existing projects is a...
Computer-Aided Operation of a Hydropower System
This paper outlines the development of a computer model which optimizes the operation of a regulated river system given certain constraints using an adaptive deterministic linear programming...
Improving Design of Small Hydro Plants
One objective of this paper is to show why certain features of many small hydro plants have given poor operational performance or experienced expensive maintenance problems. A second objective...
Estimating Hydroelectric Operation and Maintenance
To improve the estimating of operation and maintenance costs for new small hydroelectric projects, an estimating model was developed. This model listed all of the operation and maintenance...
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...
Rehabilitation of a High Specific Speed Francis Turbine
An upgrade of two (2) 4. 06 meter diameter high specific speed Francis turbines is now in progress. These machines were originally installed by Allis-Chalmers in the 1920's...
Major Hydraulic Turbine Operation and Maintenance Problems Experienced by the Corps of Engineers
The U. S. Army Corps of Engineers is the largest owner/operator of hydroelectric power generating facilities in the United States with 344 generating units, having an installed capacity...
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