Effect of injection timing on mixture formation and combustion in an ethanol direct injection plus gasoline port injection (EDI+GPI) engine
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- 作者：Yuhan Huanga ; b ; Yuhan.Huang@student.uts.edu.au" class="auth_mail" title="E-mail the corresponding author ; Guang Honga ; Ronghua Huangb
- 关键词：Ethanol direct injection ; Gasoline port injection ; Dual-fuelled ; Numerical modelling ; Injection timing
- 刊名：Energy
- 出版年：2016
- 出版时间：15 September 2016
- 年：2016
- 卷：111
- 期：Complete
- 页码：92-103
- 全文大小：3642 K
文摘
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Full CFD modelling of an EDI+GPI dual-fuelled engine was performed.
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Effects of EDI timing and ratio on mixture formation and combustion were evaluated.
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Late EDI timing deteriorated combustion by increased wall-wetting and uneven mixture.
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The CO and HC increased with late injection due to local over-cooling and poor mixing.
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Wall-wetting and incomplete combustion of late injection can be solved by small EDI ratio.