Abstract
Abstract It has been shown in earlier works that both single and double film char gasification models result in the same burning rate and same char surface temperature for reaction in forced convection, stagnation flows and in quiescent atmospheres. Consequently, comparison of experimental burning rates and/or surface temperatures with analytical results derived from these models cannot identify the appropriate model. This paper presents some analytical results for burning rates and char surface temperture for a vertical flat plate in free convection flow using the integral method. Results indicate that the two models do result in different burning rates and surface temperatures for the vertical flat plate free convection flow situation offering promise of experimentally identifying the correct mechanism.
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