An Experimental Examination of the Spontaneous Ignition of Fibrous Materials in Heated Air Streams

[+] Author and Article Information
S. A. Mehta, G. A. Karim

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

J. Energy Resour. Technol 110(1), 48-54 (Mar 01, 1988) (7 pages) doi:10.1115/1.3231360 History: Received December 01, 1986; Revised October 20, 1987; Online October 22, 2009


The behavior of a bed of fibrous combustile material, exemplified by pure cotton (ASTM, 1982), when subjected to a controlled stream of heated air, was examined experimentally. The effects of some controlling basic physical parameters, such as sample compactness and ventilation, air stream temperature, and air stream velocity on the spontaneous ignition and combustion characteristics were established. Moreover, the observed spontaneous ignition delay time was correlated in terms of these variables. The effective activation energy during the ignition reactions was derived and shown to be dependent on the compactness of the sample.

Copyright © 1988 by ASME
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