解茂昭

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:北京航空学院

学位:硕士

所在单位:能源与动力学院

电子邮箱:xmz@dlut.edu.cn

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缝隙区催化燃烧影响HCCI发动机燃烧与排放特性的多维数值模拟

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发表时间:2022-10-06

发表刊物:燃烧科学与技术

期号:3

页面范围:219-225

ISSN号:1006-8740

摘要:By coupling the KIVA-3V engine CFD package with the CHEMKIN III and DETCHEM chemical kinetics packages, the effects of in-crevice catalytic combustion on combustion process and emissions of homogeneous charge compression ignition(HCCI) engine were simulated. Methane was used as fuel, and detailed surface and gas reaction mechanisms were adopted. Effects of catalytic combustion on ignition timing, temperature field and concentration field of HC, CO and NO of a HCCI engine, whose piston top and side surfaces had been coated with catalyst (platinum), were discussed. The results show that when catalyst is applied on the piston top surface, ignition timing is advanced and HC and CO emissions are decreased. Under the same conditions, when catalyst is applied on both of the piston top and side surfaces, HC and CO emissions get lower, while NOxemissions slightly increase.

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