TY - JOUR
TI - Effects of intake air temperature on homogenous charge compression ignition combustion and emissions with gasoline and n-heptane
AU - Zhang Jianyong
AU - Li Zhongzhao
AU - Zhang Kaiqiang
AU - Lv Xingcai
AU - Huang Zhen
JN - Thermal Science
PY - 2015
VL - 19
IS - 6
SP - 1897
EP - 1906
PT - Article
AB - In a port fuel injection engine, Optimized kinetic process (OKP) technology  is implemented to realize HCCI combustion with dual-fuel injection. The  effects of intake air temperature on HCCI combustion and emissions are  investigated. The results show that dual-fuel control prolongs HCCI  combustion duration and improves combustion stability. Dual-fuel HCCI  combustion needs lower intake air temperature than gasoline HCCI combustion,  which reduces the requirements on heat management system. As intake air  temperature decreases, air charge increases and maximum pressure rising rate  decreases. When intake air temperature is about 55ºC, HCCI combustion becomes  worse and misfire happens. In fixed dual fuel content condition, HC and CO  emission decreases as intake air temperature increases. The combination of  dual-fuel injection and intake air temperature control can expand operation  range of HCCI combustion.