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Kinetic models of natural gas combustion in an internal combustion engine 被引量:2
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作者 m. mansha A. R Saleemi Badar m. Ghauri 《Journal of Natural Gas Chemistry》 EI CAS CSCD 2010年第1期6-14,共9页
In this study, combustion of methane was simulated using four kinetic models of methane in CHEMKIN 4.1.1 for 0-D closed internal combustion (IC) engine reactor. Two detailed (GRIMECH3.0 & UBC MECH2.0) and two red... In this study, combustion of methane was simulated using four kinetic models of methane in CHEMKIN 4.1.1 for 0-D closed internal combustion (IC) engine reactor. Two detailed (GRIMECH3.0 & UBC MECH2.0) and two reduced (One step & Four steps) models were examined for various IC engine designs. The detailed models (GRIMECH3.0, & UBC MECH2.0) and 4-step models successfully predicted the combustion while global model was unable to predict any combustion reaction. This study illustrated that the detailed model showed good concordances in the prediction of chamber pressure, temperature and major combustion species profiles. The detailed models also exhibited the capabilities to predict the pollutants formation in an IC engine while the reduced schemes showed failure in the prediction of pollutants emissions. Although, there are discrepancies among the profiles of four considered model, the detailed models (GRIMECH3.0 & UBC MECH2.0) produced the acceptable agreement in the species prediction and formation of pollutants. 展开更多
关键词 kinetic models detailed models reduced models COMBUSTION METHANE IC engine
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Prediction and measurement of pollutant emissions in CNG fired internal combustion engine 被引量:1
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作者 m. mansha A. R. Saleemt +1 位作者 Javed S. H Badar m. Ghauri 《Journal of Natural Gas Chemistry》 EI CAS CSCD 2010年第5期539-547,共9页
In the present study, the detailed reaction mechanisms were developed and Chemkin 4.1.1 was implemented to predict the formation of pollutant species in compressed natural gas (CNG) fired internal combustion (IC) ... In the present study, the detailed reaction mechanisms were developed and Chemkin 4.1.1 was implemented to predict the formation of pollutant species in compressed natural gas (CNG) fired internal combustion (IC) engine. The proposed mechanisms were developed by coupling the EXGAS (an automatic mechanism generation tool for alkane oxidation) mechanisms with the Leed's NOz mechanism (version 2.0). The simulation results of each proposed mechanism were validated by the experimental measurements for profiles of temperature, pressure and pollutant species (CO, NOx). The rate of production analysis of each mechanism identified the important reactions in each mechanism which contributed to the formation of pollutant species. In spite of some discrepancies, the experimental measurements indicate that Mechanism-IV (consisting of 208 reactions and 78 species) showed closer agreement for each of the predicted profiles of temperature, pressure and pollutant species (CO, NOx). 展开更多
关键词 kinetic mechanism rate of production OXIDATION pollutant species
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