Experimental Study of Stratified Cooling Ponds
Experiments in a laboratory physical model were conducted to analyze the hydrothermal performance of vertically stratified cooling ponds. Temperature, velocity, and fluorescent dye measurements...
Thermal Breakup Predictions on a Regulated River
The thermal breakup process which occurs on the Peace River in Alberta, Canada is described. A quantitative technique which uses the energy budget to explain the celerity of the breakup...
Simulation of River Ice Cover Growth and Decay
A model of ice cover thermodynamics was used to simulate ice growth and decay along the international section of the St. Lawrence River for the winter of 1980-81. At the air-ice interface,...
Hydro-Thermal Power Plants with Pumped Storage
The concept of pumped storage can be justified through the development of hydro-thermal power plants. The hydraulic equipment for power plants of this kind is available in the market meeting...
Modeling Pool and Riffle Sequences in Alluvial Channels
A one-dimensional mathematical model has been developed to predict the hydraulic characteristics of alluvial channels under low flow conditions. For a given steady discharge, channel geometry,...
Temperature Effects on Lasers
While lasers have markedly improved the accuracy of engineering, air temperature gradients can reduce that drastically. Based on a sewer project that used lasers to align all the pipe,...
Powerhouse
The Grand Coulee Third Powerplant Project, an extension of the Grand Coulee Dam in northeastern Washington State, has been given a 1983 ASCE OCEA Award of Merit. Located on the Columbia...
Advisory Notes on Lifeline Earthquake Engineering
A Report
A state-of-the-art review of seismic design of lifeline facilities is presented including some insight as to how lifeline facilities have performed in past earthquakes. Information is...
Thermal Storage, Now and Future
Two-part article describes a 250 x 82 x 22 ft underground concrete tank that stores about 29,000 ton-hours of cooling effect for Yale University's medical school complex....
How to Create and Present Effective Slides
Speakers often devote hours of preparation to the main body of a prepared text, but fail to allow ample preparation time to creating their visual aids. Slides, visual aids which should...
Application of Walls to Landslide Control Problems
The evolution of tieback restraint systems is presented. Case histories describe current practices for tieback design and construction and give examples of how the requirements were met...
Water Pollution Control Plant Upgraded to Meet EPA Regs
An Outstanding Civil Engineering Achievement Award Nominee, Philadelphia's Southwest Water Pollution Control Plant, has a $300 million addition which nearly doubled plant...
Sanitary Sewer Design
Good sanitary sewer design practice requires evaluation of alternative locations, slopes and pipe sizes. However, cost considerations generally keep alternative evaluations to a minimum....
Lifeline Earthquake Engineering
The Current State of Knowledge, 1981
An examination of recent strong earthquakes suggests that earthquake engineering should be strengthened and institutionalized in the lifeline field, specifically public utilities. The...
Underground Plastic Pipe
Thirty-nine of the papers presented at the 1981 International Conference on Underground Plastic Pipe are included. The types of pipes examined include: thermoplastics, thermosetting plastic...
Dike Safety Upgraded with Millions of Square Feet of Fabric
Nonwoven fabrics of two different weights were used in an $80 million dike reconstruction project in southern Florida. Florida Power & Light Company rebuilt the embankment to a...
Annotated Bibliography on Lifeline Earthquake Engineering
Articles, reports, books, data and other information relative to lifeline earthquake engineering are listed as a guide to researchers and practicing engineers. Each citation in the bibliography...
Solar Energy for Heating Homes: How Practical�
There is a widespread belief that on-site solar energy for heating homes is still not a proven technology and that, in any event, it's much too expensive. The fact is that...
New Approach to Storm Drainage Pipe Design
Using a recently developed computer program, drainage swales can be designed to provide short-term storage of stormwater. Benefits of this approach to stormwater management include reduced...
How about Reverse Filters
Reverse or inverted filters allow water to drain freely without carrying away suspended solids. Their pore size must be properly related to the fines being protected. Terzaghi's...
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