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http://dx.doi.org/10.7731/KIFSE.2013.27.6.015

Inverse Estimation of Convective Heat Transfer Coefficient, Emissivity and Flame Heat Flux on the Surface  

Yoon, Kyung-Beom (Korea Conformity Laborities)
Park, Won-Hee (Korea Railroad Research Institute)
Publication Information
Fire Science and Engineering / v.27, no.6, 2013 , pp. 15-20 More about this Journal
Abstract
The convective heat transfer coefficient, emissivity, and flame heat flux on the surface of Duglas fir are estimated by using repulsive particle swarm optimization. The surface temperature, mass loss rate, and ignition time are measured for various incident heat fluxes from a cone heater of the cone calorimeter. The calculated surface temperatures obtained by using the optimized convective heat transfer coefficient, emissivity and flame heat flux on the surface in this study match well with those obtained from the test. The maximum error between the predicted and measured surface temperatures for the three different external heat fluxes is within 2% showing reasonable agreements. The methodology proposed in this study can be used to obtain various values related to heat transfer on a flaming surface that are difficult to measure in experiments.
Keywords
Flame heat flux; Convective heat transfer coefficient; Emissivity; Repulsive particle swarm optimization;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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