Influence of H2 and CO of biomass gas fuel on ignition and combustion in HCCI Engine

被引:0
作者
Yamasaki Y. [1 ]
Kanno M. [1 ]
Taura Y. [1 ]
Kaneko S. [1 ]
机构
[1] Department of Mechanical Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656
来源
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2010年 / 76卷 / 761期
关键词
Biomass energy; Combustion; Gaseous fuel; HCCI; Ignition; Internal combustion engine;
D O I
10.1299/kikaib.76.761_135
中图分类号
学科分类号
摘要
Aiming to understand applicable component of biomass gas to HCCI engines, combustion characteristics were investigated experimentally for mock biomass gas with varying fuel components. Mock biomass gases consisted of H2, CH4, CO, N2 and CO2, were used assuming wood pyrolysis gases. Using modified gas engine with air inlet heaters and high compression ratio pistons, experiments were carried out. Auto-ignition timing is temperature domain regardless of fuel component, ignition temperature is about 1 000 K as same as hydrocarbon fuels. Combustion speed following auto-ignition is influenced largely on H2 and CO2 content, it is clarified that combustion speed is proportional to H2 and CO 2 ratio of fuel. Meanwhile CO of fuels does not effect on combustion speed. H2 and CO2 ratio of fuel is also largely concerned with knock, and it is one of index of minimum IMEP that knock yield. About Exhaust emissions, THC and CO is higher level because of lower cyclic maximum temperature for inert component of fuel, in another hand, NOx is near zero regardless of fuel components and operation conditions.
引用
收藏
页码:135 / 141
页数:6
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