摘要
运用AVL-BOOST软件分别建立天然气发动机和汽油机的燃烧模型,确定了两种燃料发动机的低热值和空燃比等参数后,进行了模拟分析。模拟结果表明,在同样的压缩比情况下,天然气发动机的动力性低于汽油机;天然气发动机的扭矩略低于汽油机,汽油机的加速性能和爬坡性能更好;天然气发动机的压力升高率低于汽油机,天然气发动机运转时噪声低,舒适性好;天然气发动机的放热率低于汽油机,天然气发动机的指示热效率比汽油机高,所以天然气发动机更经济;天然气发动机尾气中的CO、NOx和HC均低于汽油机,天然气发动机对环境的污染小。
The combustion models of natural gas engine and the gasoline engine were established respectively in this article.The simulation is carried outafter calculating the low heating value and air-fuel ratio of the two fuel engines.The simulation results show that the power performance of the natural gas engine is lower than that of the gasoline engine under the same compression ratio.The torque of the natural gas engine is slightly lower than that of the gasoline engine.The acceleration performance and climbing performance of the gasoline engine are better.The pressure rise rate of the natural gas engine is lower than that of the gasoline engine,which meansthe natural gas engine have low noise and good comfort during operation.The heat release rate of the natural gas engine is lower than that of the gasoline engine.The indicated thermal efficiency of the natural gas engine is higher than that of the gasoline engine.Therefore,the natural gas engine is more economical.The natural gas engine are lower than that of the gasoline engine in the exhaust,including CO,NOx and HC.The natural gas engine has little pollution to the environment.
作者
李维
陈佩
赵勇琪
巨军成
黄栋杰
Li Wei;Chen Pei;ZhaoYongqi;Ju Juncheng;Huang Dongjie(School of Vehicle Engineering,Xi’an Aeronautical University,Xi’an 710077,China;Training department,Guangzhou Staff training Base China Railway,Guangzhou Group Co.Ltd.,Huadu District,Guangzhou 510800,China)
出处
《国外电子测量技术》
北大核心
2021年第2期34-38,共5页
Foreign Electronic Measurement Technology
基金
陕西省科技厅环境保护关键技术设备与治理研究开发及应用示范创新链项目(2016KTZDSF03-03)资助。
