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氢内燃机怠速性能试验研究

何义团, 马凡华, 邓蛟, NAEVE Nashay

何义团, 马凡华, 邓蛟, NAEVE Nashay. 氢内燃机怠速性能试验研究[J]. 北京工业大学学报, 2012, 38(10): 1560-1564.
引用本文: 何义团, 马凡华, 邓蛟, NAEVE Nashay. 氢内燃机怠速性能试验研究[J]. 北京工业大学学报, 2012, 38(10): 1560-1564.
HE Yi-tuan, MA Fan-hua, DENG Jiao, NAEVE Nashay. Idle Characteristics of a Hydrogen Fueled SI Engine[J]. Journal of Beijing University of Technology, 2012, 38(10): 1560-1564.
Citation: HE Yi-tuan, MA Fan-hua, DENG Jiao, NAEVE Nashay. Idle Characteristics of a Hydrogen Fueled SI Engine[J]. Journal of Beijing University of Technology, 2012, 38(10): 1560-1564.

氢内燃机怠速性能试验研究

基金项目: 

重庆市自然科学基金资助项目(2010BB4264)

重庆市交通运输工程重点实验室基金资助项目(2011CQJY003)

详细信息
    作者简介:

    何义团(1977—),男,副教授,在站博士后,主要从事代用燃料发动机方面的研究,E-mail:heyituan@163.com.

  • 中图分类号: TK46+4

Idle Characteristics of a Hydrogen Fueled SI Engine

  • 摘要: 为研究氢内燃机的怠速特性,在一台6缸氢内燃机上研究了过量空气系数λ与点火提前角θi对发动机主要性能参数的影响.结果表明:随着λ的增大,最大指示热效率ηi所对应的θi逐步增加,ηi随之增加,NOx排放随之减小;同一λ条件下,NOx排放随着θi增大而增加;氢内燃机怠速时可采用λ>2.5的稀混合气,且应适当增大Qi;最大缸压随着λ增加而降低、随着θi增大而上升;不同λ值条件下最大压力升高率的规律基本相似,只是在λ=2.5、θi<10°CA时,最大压力升高率基本保持不变。
    Abstract: This paper investigates the effect of the excess air ratio λ and ignition advance angle θi on idle characteristics of a turbocharged hydrogen fueled SI engine.The experimental data are conducted under various operating conditions including different λ and θi.It is found that the ignition advance angle at MBT point gradully increases with increasing excess air ratio from 1.1 to 2.5.The indicated thermal efficiency increases as λ increases.NOx emission decreases as λ increases.When λ is kept constant,NOx emission increases as θi increases.During idle conditions of a hydrogen fueled engine,a lean mixture with a λ more than 2.5 is suitable,and θi should increase appropriately.The maximum cylinder pressure increases with an increase of λ and θi.The trend of the maximum rate of pressure rise is similar at different λ.Only under the conditions of λ=2.5 and θi<10°CA,the maximum pressure rise rate remains almost unchanged.
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出版历程
  • 收稿日期:  2010-11-01
  • 网络出版日期:  2022-12-02

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