Effect of dilution strategies and direct injection ratios on stratified flame ignition (SFI) hybrid combustion in a PFI/DI gasoline engine
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- 作者：Xinyan Wanga ; Hua Zhaoa ; b ; Hui Xiea ; xiehui@tju.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Computational fluid dynamics ; Hybrid combustion ; Stratified mixture ; Controlled auto-ignition ; Diluted combustion
- 刊名：Applied Energy
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：165
- 期：Complete
- 页码：801-814
- 全文大小：2454 K
文摘
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Overall lean air mixture can be used to enhance early flame propagation in SFI.
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Increasing air dilution with sufficient iEGR addresses the trade-off between IMEP and PRRmax.
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Optimal SFI with high IMEP and low PRRmax can be achieved with rDI of 0.16.
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Three combustion regimes are proposed to reveal the effect of local ϕair distribution on SFI.