Research Article
Oct 1972
Impact of Cooling Water on Lake Temperatures
Authors: Heinz Stefan, AM.ASCE, Chung-Sang Chu, and Ho WingAuthor Affiliations
Abstract
The impact of cooling water discharge from A.S. King plant on water temperatures in Lake St. Croix during the summer of 1969 is evaluated in terms of overall effects. The information supplements previous studies of local temperature increments in the thermal plume. The method used is generally applicable and puts into focus the alteration of the elements of a natural heat budget by power plant effluents as well as illustrating some of the trade-offs between natural and artificial heat inputs and resultant temperature changes. Caution must be exerted when ambient temperatures are used to represent natural ones. The main objective was to demonstrate the applicability of the heat budget method to predict alterations of natural water temperatures caused by cooling water discharges. The particular numerical results obtained show no significant impact of cooling water discharges on water temperatures at the chosen demonstration site for the period of investigation.
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Information
Published In
Journal of the Power Division
Volume 98 • Issue 2 • October 1972
Pages: 253 - 272
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Oct 1972
Published online: Feb 11, 2021
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Affiliations
Heinz Stefan, AM.ASCE
Assoc. Prof., Dept. of Civ. and Mineral Engrg. and St. Anthony Falls Hydraulic Laboratory, Univ. of Minnesota, Minneapolis, Minn.
Chung-Sang Chu
Grad. Student, Dept. of Civ. and Mineral Engrg. and St. Anthony Falls Hydraulic Laboratory, Univ. of Minnesota, Minneapolis, Minn.
Ho Wing
Grad. Student, Dept. of Civ. and Mineral Engrg. and St. Anthony Falls Hydraulic Laboratory, Univ. of Minnesota, Minneapolis, Minn.
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