A lumped kinetic model for high-temperature pyrolysis and combustion of 50 surrogate fuel components and their mixtures

Wide distillation fuels (WDF) and gasoline/diesel blends have been proposed as new fuel formulations for advanced combustion engines. Recent studies shown that multi-component gasoline diesel surrogate mixtures can accurately mimic the curve, functional group or hydrocarbon class distribution, average molecular weight, other properties of real fuels. This work presents an updated decoupling methodology to construct a 50-component model, which consists skeletal sub-mechanism large components present in gasoline, jet fuels, reduced C5-Cn mechanism, detailed C0-C4 mechanism. The entire model contains 156 species 1132 reactions. chemical classes covered include n-alkanes, iso-alkanes, cyclo-alkanes alkylbenzenes. Compared with comprehensive kinetic modeling approach, largely reduces size due use mechanisms. traditional methodology, our approach increases accuracy since it mechanism instead C2-C3 was validated against experimental targets at high temperatures, including pyrolysis oxidation speciation data global parameters such ignition delay times laminar flame speeds from 30 pure 12 mixtures. In general, performs well these data, suggesting this is suitable developing accurate models Future will extend framework predict low-temperature chemistry