Mechanism reduction for multicomponent surrogates: A case study using toluene reference fuels

摘要: Abstract Strategies and recommendations for performing skeletal reductions of multicomponent surrogate fuels are presented, through the generation validation mechanisms a three-component toluene reference fuel. Using directed relation graph with error propagation sensitivity analysis method followed by further unimportant reaction elimination stage, valid over comprehensive high-temperature ranges conditions were developed at varying levels detail. These generated based on autoignition simulations, using ignition delay predictions showed good agreement detailed mechanism in target range conditions. When validated phenomena other than autoignition, such as perfectly stirred reactor laminar flame propagation, tight control or more restrictions reduction during stage needed to ensure agreement. In addition, limits close prediction when mixture composition away from that used reduction. homogeneous compression-ignition engine closely matched point accurately predicted species profiles lean stoichiometric Furthermore, efficacy generating was compared combining produced separately neat fuel components; same limits, latter resulted larger size also lacked important cross reactions between components. Based present results, general guidelines reducing discussed.