Modeling on blend gasoline/diesel fuel combustion in a direct injection diesel engine☆

摘要: Abstract Gasoline and diesel as fuels for internal combustion engines have been commonly available used decades. In this study, the performance emission formation of a direct injection engine fueled with gasoline/diesel blend fuel are investigated numerically. Simulations conducted on pure its 10%, 20%, 30% 40% gasoline at an speed 2800 rpm under 50% 100% loads. A reduced PRF (primary reference fuel) mechanism which consists 45 species 142 reactions is in coupled KIVA4–CHEMKIN code detailed chemistry calculations. mechanism, represented by iso-octane n-heptane, respectively. Comparing results among different conditions, it found that ignition delay time extended increasing ratio fuels. However, has diverse effects At low load, condition achieves better performance; contrast, could be realized medium high loads, though slightly higher NOx level.