The Diffusivity of Methane Into Air Within Vertical Tubes

[+] Author and Article Information
R. Petela, G. A. Karim

Department of Mechanical Engineering, The University of Calgary, Calgary, Alberta, Canada

J. Energy Resour. Technol 112(4), 268-273 (Dec 01, 1990) (6 pages) doi:10.1115/1.2905772 History: Received April 02, 1990; Revised August 25, 1990; Online April 16, 2008


An experimentally based effective diffusivity for methane is derived. Its application for predicting the concentration changes following the release of methane upwards into air at constant temperature and pressure within a vertical cylinder is then examined. Examples relating to the formation and dissipation of flammable mixtures following the release of methane into air are presented and discussed.

Copyright © 1990 by The American Society of Mechanical Engineers
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