RESEARCH PAPERS: Heat Transfer in Manufacturing

Fog Inerting Effects on Hydrogen Combustion in a PWR Ice Condenser Containment

[+] Author and Article Information
W. Luangdilok

Fauske & Associates, Inc., 16W070 West 83rd St., Burr Ridge, IL 60521

R. B. Bennett

Nuclear Operations Division, American Electric Power Service Corporation, 1 Riverside Plaza, Columbus, OH 43216-6631

J. Heat Transfer 117(2), 502-507 (May 01, 1995) (6 pages) doi:10.1115/1.2822550 History: Received June 01, 1993; Revised October 01, 1994; Online December 05, 2007


A mechanistic fog inerting model has been developed to account for the effects of fog on the upward lean flammability limits of a combustible mixture based on the thermal theory of flame propagation. Benchmarking of this model with test data shows reasonably good agreement between the theory and the experiment. Applications of the model and available fog data to determine the upward lean flammability limits of the H2 –air–steam mixture in the ice condenser upper plenum region of a pressurized water reactor (PWR) ice condenser containment during postulated large loss of coolant accident (LOCA) conditions indicate that combustion may be suppressed beyond the downward flammability limit (8 percent H2 by volume).

Copyright © 1995 by The American Society of Mechanical Engineers
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