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降低均质压燃发动机碳氢排放的一种新方法

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Indexed by:期刊论文

Date of Publication:2008-05-15

Journal:工程热物理学报

Included Journals:EI、PKU、ISTIC、CSCD

Volume:29

Issue:5

Page Number:881-884

ISSN No.:0253-231X

Key Words:催化燃烧;均质压燃;化学动力学模型;缝隙区;CFD模型

Abstract:将发动机多维CFD程序KIVA-3V与化学动力学程序CHEMKIN Ⅲ及DETCHEM相耦合,模拟了缝隙区催化燃烧对HCCI发动机排放特性的影响.利用此模型分析了活塞冠侧面催化剂铂涂层对HCCI发动机缸内温度场及HC浓度场的影响,结果表明当活塞冠侧面存在催化剂时,与缸内无催化燃烧相比,HC、CO的排放得到很大程度降低,但Nox的排放将略有升高.

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