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...
Pit-Type Bulb Turbines?An Economic Solution for Low-Head Applications
For improving the profitability of extremely low head power plants the pit-type bulb turbine conception was developed, based on extensive model tests and on the operating experience with...
Economic Evaluation of Replacement Turbine Runner Bids
Many owners of hydro facilities are investigating increasing plant capacity and output by upgrading existing hydraulic turbines. Typically, the owner will conduct a detailed feasibility...
Basic Considerations in Governed or Non-Governed Small Hydro Power Plants
This paper reviews the necessary studies and major considerations that must be completed for proper coordination and selection of a turbine governor, and generator. A discussion of the...
Programmable mMicroprocessors in Local Control of Hydro Power Plants
The main purpose of the control equipment is to provide the generator with means for operation of the power station equipment. There is a need for status information on the generating...
Voltage Versus Var/Power Factor Regulation on Hydro Generators
When paralleled to the utility bus, synchronous generators can be controlled using either terminal voltage or var/power factor regulation. Selection is dependent upon the size of the generator...
Electrical Equipment for Pumped Storage Plants
Selection of generator/motors and other electrical equipment for pumped storage plants requires consideration significantly different than for conventional hydro plants. This is particularly...
Simply Complex
In California, after years of uncertainties and overcoming a complex myriad of hurdles, a major 205. 5 MW hydroelectric development project, financed by Northern California Power Agency,...
Subsurface Savings
Less conservatism than usual in designing building foundations is being accepted or demanded by some owners to save money. The article describes four examples of cost-cutting innovations,...
Rennick Yard RCC Pavement Design and Construction
Rennick Yard roller compacted concrete paving project consisting of 136,000 multiplied by (times) yd**2 (113,710 m**2) was completed in June 1986. The design load for this project was...
Geosynthetics for Soil Improvement: A General Report and Keynote Address
The paper summarizes major developments in the field of geosynthetics since the previous symposium in 1980. The paper addresses the engineering functions of major types of geosynthetics,...
Pull-Out Response of Geotextiles and Geogrids (Synthesis of Available Experimental Data)
During the past 15 years, there has been a considerable growth in the use of various materials to reinforce soils. The rapid development of geosynthetics and their increasing use in soil...
Highway Factors in Truck Wrecks
An examination is presented of highway factors as they interact with driver and vehicle factors in large truck accident causation. Examples of highway defects are discussed along with...
Effects of Driver Factors and Training on Wrecks
A training program for professional drivers is reviewed. The effects of driver factors, as well as their training, on accidents is presented....
Truck Operating Characteristics in Relation to Safety
For a two-year period large truck crashes on the interstate system in Washington State were investigated using a case-control method. For each large truck involved in a crash, three trucks...
Impact of International Competition on Construction Technology?A Perspective
The strong showing by non-U. S. contractors in the development of new construction technologies has had a significant impact on the redistribution of construction dollars in world markets....
The Swedish Approach to Construction Technology Development
Swedish building and construction work expanded very fast both technically and industrially during the two decades following 1950, domestically first, later also abroad. The 1980s has...
Winning With Advanced Construction Technology
At least three driving forces in U. S. construction markets indicate the increasing importance of advanced technology: the technical complexity of constructed facilities is increasing;...
Equipment Automation and Its Impact on Construction Technology
The Naval Construction Force is facing a shortage with their horizontal construction capability and their equipment is not designed to function in a modern war environment. One solution...
Competitiveness in Construction
This paper addresses the competitiveness of the U. S. construction industry. The goal is to define a possible scope for the subject, outline some key issues and dimensions, and examine...
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