Combustion characteristics and heat release analysis of a spark-ignited engine fueled with natural gas-hydrogen blends
Combustion characteristics and heat release analysis of a spark-ignited engine fueled with the natural gas-hydrogen blends were investigated. For the same excess air ratio and at the optimum ignition timing setting, the natural gas combustion gives the higher values of peak cylinder pressure and peak heat release rate in the case of the rich mixture combustion. In the case of the stoichiometric mixture combustion and the lean mixture combustion, the natural gas-hydrogen blend with 10％ of hydrogen fraction gives the highest value of the peak cylinder pressure and the peak heat release rate. The initial combustion duration and the total combustion duration decrease with the increase of hydrogen fraction in the natural gas-hydrogen blend. Addition of hydrogen into the natural gas decreases the ignition delay. Although the optimum ignition timing is retarded with the increase of hydrogen fraction in the natural gas- hydrogen blends, the heat release process does not postponed.
Spark ignition engine Natural gas Hydrogen Combustion
Zuohua HUANG Bing LIU Ke ZENG Yinyu HUANG Deming JIANG Xibin WANG Haiyan MIAO
State Key Laboratory of Multiphase Flow in Power Engineering, Xian Jiaotong University, Xian, Peop State Key Laboratory of Multiphase Flow in Power Engineering,Xian Jiaotong University,Xian, People
国际会议
2007年(中国内燃机学会第六届学术年会暨国际内燃机学术研讨会和第六届中国国际内燃机及制造装备展览会)两会一展国际学术会议
上海
英文
186-195
2007-10-09（万方平台首次上网日期，不代表论文的发表时间）