燃料配比和点火提前角对氨氢发动机的性能影响研究  

Research on the effect of fuel ratio and ignition advance angle on the performance of ammonia hydrogen engine

作　　者：张幽彤[1,2] 陈振宁 窦海石 张宏业 ZHANG Youtong;CHEN Zhenning;DOU Haishi;ZHANG Hongye(School of Machinery and Vehicle,Beijing Institute of Technology,Beijing 100089,China;Yangtze River Delta(Jiaxing)Research Institute,Beijing Institute of Technology,Jiaxing 314000,China;School of Engineering,Beijing Forestry University,Beijing 100091,China)

机构地区：[1]北京理工大学机械与车辆学院,北京100089 [2]北京理工大学长三角(嘉兴)研究院,浙江嘉兴314000 [3]北京林业大学工学院,北京100091

出　　处：《重庆理工大学学报（自然科学）》2024年第7期240-247,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：河北省2022年技术攻关类“揭榜挂帅”项目。

摘　　要：针对氨氢发动机在燃料匹配比和点火提前角参数不准确时会造成发动机输出效率较低、排放增加等问题,以某款直列六缸四冲程氨氢发动机为研究对象,给出不同研究参数,在GT-POWER中建立发动机仿真模型,并使用Simulink联合仿真验证了氨氢发动机仿真模型的可行性。研究燃料配比和点火提前角对发动机的性能影响规律,结果表明:发动机在9∶1的氨氢比下有最佳的综合使用效率;26°CA点火提前角时可以提高发动机效率,降低排气温度,但不利于减少污染物排放;14°CA点火提前角时可降低污染物排放,但会影响发动机工作效率;20°CA为最佳点火提前角。研究结果可为针对氨氢发动机的标定及进一步的性能规律研究提供参考。To address the low engine output efficiency and increased emissions caused by inaccurate fuel matching ratio and ignition advance angle parameters in ammonia hydrogen engines,this paper takes a straight six-cylinder four-stroke ammonia hydrogen engine as the research object with different parameters given.An engine simulation model is built in GT-POWER,and the feasibility of the ammonia hydrogen engine simulation model is verified by employing Simulink joint simulation.Then,the impact of fuel ratio and ignition advance angle on engine performance is investigated.Our research results show the engine achieves the highest comprehensive utilization efficiency at a 9∶1 ammonia hydrogen ratio.Under these conditions,a 26°CA ignition advance angle improves engine efficiency and reduces exhaust temperature,but is not conducive to reducing pollutant emissions.A 14°CA ignition advance angle cuts pollutant emissions,but undermines engine efficiency.A 20°CA is put forward as the optimal ignition advance angle.Our research results may provide some valuable references for the calibration and performance study of ammonia hydrogen engines in the future.

关 键 词：氨氢发动机 燃料配比 点火提前角 

分 类 号：TK437[动力工程及工程热物理—动力机械及工程]