por cpl em 21/05/12

Estudo do Alcool para Calculo de Velocidade da Chama

(Benchmarking of Alcohol Chemical for Flame Speed Calculations)

Benchmarking of Alcohol Chemical Kinetic Mechanism for Laminar Flame Speed Calculations

Methanol and ethanol have been investigated as very high octane fuels for knock
control/avoidance in spark ignition engines. Direct injection of the alcohol results in
substantial cooling of the cylinder charge, decreasing the chemical kinetic rates that result
in autoignition. However, decreasing the temperature of the cylinder charge also affects
the initial flame propagation. The purpose of this paper is to benchmark the Marinov
mechanism developed for ethanol oxidation when used for methanol, and to compare it
with the Li mechanism developed for methanol. Flame speeds from the chemical kinetics
model are compared with published experimental results for both methanol and ethanol.

Benchmarking_of_Alcohol_chemical_for_Flame_Speed_Calcs.pdf

(1Mb)

keywords: ALCOOL ETHANOL VELOCIDADE QUEIMA