摘要
本文介绍一种应用热力学第二定律计算汽油机气缸中工质(火用)的方法,并以此研究和分析汽油机稀薄混合气燃烧时热效率随空燃比、压缩比、涡流比和点火正时变化的原因。结果表明,(火用)分析对加深理解热效率的变化及其如何提高是有帮助的。
The calculation of the availability of working medium in the gasoline engine cylinder based on the second law of thermodynamics is presente. The effects of air-fuel ratio, compression ratio, swirl ratio and ignition timing on the thermal efficiency of lean combustion engine were explained and discussed by availability analysis. It was shown that availability analysis is useful for better understanding the dependence of thermal efficiency on above-mentioned factors.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
1991年第1期7-12,共6页
Transactions of Csice
关键词
汽油机
燃烧
混合气
YONG分析
Gasoline engine
Lean combustion
Availability analysis
