Investigation of late-cycle soot oxidation using laser extinction and in-cylinder gas sampling at varying inlet oxygen concentrations in diesel engines

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• 作者：Yann Gallo^a ; ^{Yann.gallo@energy.lth.se} ; Vilhelm B. Malmborg^b ; Johan Simonsson^c ; Erik Svensson^a ; MengQin Shen^a ; Per-Erik Bengtsson^c ; Joakim Pagels^b ; Martin Tun&eacute ; r^a ; Antonio Garcia^d ; Ö ; ivind Andersson^a
• 关键词：Soot oxidation ; PM ; OH ; EGR ; Gas-sampling ; Laser extinction
• 刊名：Fuel
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：193
• 期：Complete
• 页码：308-314
• 全文大小：1029 K
• 卷排序：193

文摘

Optical and in-cylinder sampling data show a slower soot oxidation when inlet oxygen is reduced. Reduced intake O2 lowers the maximum adiabatic flame temperature limiting OH production. The results point towards OH being the dominant oxidizer under diesel combustion.