Abstract
Abstract Steady, fully-burning wall fires were studied for several alcohols burning in air. Methanol, 1-propanol. and 1-butanol were burned using a vertically-oriented porous ceramic wick. Completeness of combustion was evaluated and accounting for its effect in numerical modeling, on characteristics of laminar wall fires was examined. Measurements of the concentration profiles in the free-convection boundary layers formed revealed that for each of the fuels more than 30% of fuel carbon was found present in product CO, as opposed to CO2. However, using a numerical model that employs a one-step overall reaction, the subsequent decrease in the effective heat of combustion in accounting for incomplete combustion did not lead to a substantial change in burning characteristics. For all of the alcohols, there was less than a 5% decrease in burning rates and less than a 150K drop in peak temperatures.
Published Version
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