华中科技大学学报（自然科学版）2017，Vol.45Issue(6)：91-96,6.DOI:10.13245/j.hust.170618
SACI燃烧过程韦伯参数的计算方法
Approaches of Wiebe parameter determination in SACI combustion processes
摘要
Abstract
An analysis of the spark-assisted compression ignition (SACI) combustion process was carried out with Wiebe function.The number of combustion modes was obtained according to the change of form factor (m) and relevance of m(Rm) in combustion process.The single Wiebe function, double Wiebe function and muti-Wiebe function were established.A weight fit method was used to improve the computational accuracy of m.The computation methods of combustion mode break point and combustion duration were proposed.By compared with computation results of three different Wiebe function, it can be seen that, adopting double Wiebe function is enough to keep the correlation coefficient (R2) higher than 0.95.By analyzing the computational accuracy with different Wiebe function, a combustion mode determination method based on the experimental data was proposed, and the accuracy was verified.关键词
汽油机/燃烧过程/火花塞辅助压缩点燃(SACI)/韦伯方程/参数确定Key words
gasoline engine/combustion process/spark-assisted compression ignition (SACI)/Wiebe function/parameter determinationZK)分类
能源科技引用本文复制引用
孙永瑞,胡松,杨传雷,王银燕..SACI燃烧过程韦伯参数的计算方法[J].华中科技大学学报（自然科学版）,2017,45(6):91-96,6.基金项目
国家科技支撑计划资助项目 (2015BAG16B01). （2015BAG16B01）
