Heat Transfer Effects During Cold Dense Gas Dispersion: Wind-Tunnel Simulation of Cold Gas Spills

[+] Author and Article Information
R. N. Meroney, D. E. Neff

Fluids Mechanics and Wind Engineering, Civil Engineering Department, Colorado State University, Fort Collins, CO 80523

J. Heat Transfer 108(1), 9-15 (Feb 01, 1986) (7 pages) doi:10.1115/1.3246911 History: Received December 07, 1984; Online October 20, 2009


Wind-tunnel concentration data were obtained for continuous area releases of ambient temperature Freon–air mixtures, cold N2 , cold CO2 , and cold CH4 clouds. Heat transfer and humidity effects on model concentration distributions were significant for methane plumes when surface Richardson numbers Ri* were large (i.e., low wind speed and high boiloff rate conditions). At field scales heat transfer and humidity will still play a role in the dispersion of methane spill cases, but plume dilution and liftoff are not expected to be as exaggerated as for the model cases.

Copyright © 1986 by ASME
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