Aquatic Ecosystems and Thermal Power Plantsby Loren D. Jensen, Assoc. Prof.; Dept. of Geography and Envir. Engrg., Johns Hopkins Univ., Baltimore, MD,
Derek K. Brady, Res. Asst.; Dept. of Geography and Envir. Engrg., Johns Hopkins Univ., Baltimore, MD,
Serial Information: Journal of the Power Division, 1971, Vol. 97, Issue 1, Pg. 209-217
Document Type: Journal Paper
Abstract: The factors which affect biological responses to temperature changes in aquatic ecosystems are discussed in terms of their influence on siting, design and operation of thermal power plants. Recommended are: (1) the development of a basis for classifying aquatic organisms according to their relative importance in maintaining the balance of specific ecosystems; (2) the biological zoning of receiving waters, with time-dependent temperature criteria based on the annual reproduction cycles of ecologically important species; (4) the development of criteria which incorporate the effects of temperature rise, duration of exposure, rate of change, and frequency of violation; (4) the field investigation of planktonic entrainment in cooling water intakes to evaluate the effects of temperature, turbulence and recirculation; (5) a flexible approach to the design of cooling water systems so as to facilitate subsequent modifications and additions; and (6) the incorporation into plant operational procedures of careful control of rates of load change.
Subject Headings: Aquatic habitats | Vegetation | Thermal power | Power plants | Water intakes | Temperature effects | Temperature distribution
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