Abstract

Engineering Kinetics is defined as the mathematical description of char kinetics with necessary and sufficient accuracy for use in calculations in flame models. The equation developed and tested the Engineering Rate Equation has the form 1/R{sub s} = 1/{var epsilon}k{sub d} + 1/{var epsilon}k{sub a}p{sub a} + 1/k{sub D}p{sub a}. Work on char combustion is discussed in the following sections: development of the extended resistance equation; determination of adsorption/desorption rates at a carbon surface governed by Langmuir kinetics; variation of density and diameter with burn-off during particle combustion; correction for the average in calculating char combustion rates; char kinetics from field's corrected data; rate data for char kinetics from field's corrected data; burning time and flame equations; application of extended resistance equation; and summary. 92 refs., 75 figs., 11 tabs.

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