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RESEARCH PAPERS

Economy of Efficient Air Preheating With Extraction Steam

[+] Author and Article Information
M. K. Drewry

Wisconsin Electric Power Company, Milwaukee, Wis.

J. Eng. Power 84(1), 1-6 (Jan 01, 1962) (6 pages) doi:10.1115/1.3673365 History: Received July 28, 1960; Online January 10, 2012

Abstract

Two per cent heat rate improvement of a 275,000 kw unit results from efficient 2-stage steam air preheaters heating to 190 F with 5 F terminal temperature differences. Condenser heat rejection and turbine leaving losses are reduced substantially. Flue-gas losses are not increased. Air heater cleanliness is improved. Maintenance is reduced. Annual coal savings after fixed charges are one half of the net added investment.

Copyright © 1962 by ASME
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