Propagation and Extinction of Combustion Fronts in Crushed Oil Shale

[+] Author and Article Information
K. Nguyen, M. C. Branch

Mechanical Engineering Department, University of Colorado, Boulder, Colo. 80309

J. Energy Resour. Technol 103(2), 133-137 (Jun 01, 1981) (5 pages) doi:10.1115/1.3230825 History: Received November 21, 1979; Revised February 24, 1981; Online October 22, 2009


The effects of oil shale particle size and Fischer assay on the extinction air flux, the air flux at which the combustion front cannot operate, were studied using a small laboratory-scale retort. It was found that for runs with air consisting of 21 percent oxygen by volume, the extinction air flux is strongly dependent on the particle size and Fischer assay. The smaller oil shale particle sizes led to higher observed extinction air flux, while the leaner shale resulted in lower observed extinction air flux.

Copyright © 1981 by ASME
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