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RESEARCH PAPERS

Upward Turbulent Flame Spread on Wood Under External Radiation

[+] Author and Article Information
K. Saito, F. A. Williams

Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544

I. S. Wichman, J. G. Quintiere

Center for Fire Research, National Bureau of Standards, Gaithersburg, MD 20899

J. Heat Transfer 111(2), 438-445 (May 01, 1989) (8 pages) doi:10.1115/1.3250696 History: Received October 05, 1987; Online October 20, 2009

Abstract

Experiments were performed to obtain histories of surface temperatures and rates of upward flame spread for vertically oriented, thermally thick wood slabs exposed to surface fluxes of thermal radiation up to 2.6 W/cm2 . Above a critical irradiance sustained upward flame spread occurred for Douglas-fir particle board with pilot initiation at the base of the fuel face. Data obtained included temperatures, flame heights, pyrolysis-front heights, combustion duration, and char-layer thickness for various irradiances and preheat times. The measurements were compared with theory.

Copyright © 1989 by ASME
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