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Original Articles

Costs of Air Cleaning with Electrostatic Precipitators at TVA Steam Plants

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Pages 340-348 | Published online: 15 Mar 2012
 

Abstract

Cost data were analyzed from thirty steam power plant units utilizing electrostatic precipitators with or without mechanical centrifugal collectors. Operational, maintenance, and total costs for the years 1969, 1970, and 1971 were expressed in 1972 dollars as $/cfm-yr and $/cfm-yr-efficiency. The latter parameter is a new one which normalizes the cost of air cleaning by accounting for the amount of particulate matter collected. Large differences in the costs of air cleaning were found between plants and even between units operating in the same plant. Maintenance costs appeared to be the main contributor to large total cost differences, but improved, more specific accounting procedures are required to focus more closely on the reasons for cost differences.

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