Power Plant Cycles for Dry Cooling Towers

by Paul Leung, Principal Engineer; Vernon Div., Bechtel Corp., Los Angeles, CA,
Raymond E. Moore, Chf. Mech. Engr.; Vernon Div., Bechtel Corp., Los Angeles, CA,

Serial Information: Journal of the Power Division, 1971, Vol. 97, Issue 4, Pg. 729-747

Document Type: Journal Paper

Abstract: The use of dry cooling towers with air as the cooling medium will become more prevalent in the not-too-distant future as water quantities available for consumption in evaporative cooling processes for steam-electric generating plants become limited. Special considerations for designing either fossil-fueled or nuclear-fueled plants are required due to significant differences in turbine exhaust pressures which result in sizable capability losses. Those design considerations affecting turbine thermal cycles for steam-electric generating plants employing dry cooling towers are analyzed in this paper. Effects on major plant components, such as turbine exhaust end sizes, cycle parameters, and steam conditions, and the extent of feedwater heating within the regenerative cycle will be analyzed. Plant siting constraint consideration and general economic appraisals of fossil-fueled and nuclear-fueled cycles are summarized.

Subject Headings: Cooling towers | Cooling (wastewater treatment) | Turbines | Steam power | Nuclear power | Thermal analysis | Power plants |

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