W5p098: a Comprehensive and Compact Methyl-decanoate Oxidation Model Derived Using Chemical Lumping
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چکیده
CHEMICAL LUMPING Xiaoxiao Wang, Brandenburg Technical University of Cottbus, Germany A compact and comprehensive kinetic model for the oxidation methyl-decanoate has been developed. Methyl-decanoate is an important surrogate fuel component representing the methyl-ester fraction in biodiesel. The mechanism generation rules are consistent with previous n-heptane mechanism and complied with specific rules for methyl-esters by Herbinet et al. (2008). The mechanism is tested by comparison of model predictions with available experimental data including global combustion characteristics (ignition delay times, flame speeds) as well as speciation in reactor experiments. The model is further validated for a broad subset of C1-C4 fuels covering the complete set of typical combustion condition. Using the chemistry guided reduction approach the detailed mechanism (586 species, 3100 reactions) is reduced to a skeletal level (225 species, 1400 reactions) maintaining its predictive power / capacity, which is confirmed by largely unchanged model predictions and sensitivity coefficients in detailed and skeletal model. In this poster, the generation rules, model predictions and sensitivity analysis are presented.
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تاریخ انتشار 2012