Thermal and chemical effects of the in-cylinder charge at IVC on cycle-to-cycle variations of DME HCCI combustion with combustion-phasing retard by external and rebreathed EGR
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- 作者：Dongwon Jung ; great0526@gmail.com ; Norimasa Iida
- 关键词：Homogeneous charge compression ignition ; Cycle-to-cycle variations ; Exhausts gas recirculation ; Dimethyl ether (DME) ; Combustion phasing
- 刊名：Applied Thermal Engineering
- 出版年：2017
- 出版时间：25 February 2017
- 年：2017
- 卷：113
- 期：Complete
- 页码：132-149
- 全文大小：6198 K
- 卷排序：113
文摘
Combustion-phasing retard is an effective method for reducing a pressure-rise rate. Excessive combustion-phasing retard leads to unacceptable cycle-to-cycle variations. Chemical effects of the residuals make a recovery of IMEP even for low temperature. Adding the residuals to in-cylinder charge enhances the autoignition sufficiently. Advance of CA50 and increase of IMEP is in proportion to the amount of residuals.