Effect of CO2 dilution on combustion and emissions characteristics of the hydrogen-enriched gasoline engine
Effect of CO2 dilution on combustion and emissions characteristics of the hydrogen-enriched gasoline engine
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CO2稀释对富氢汽油机燃烧和排放特性的影响
DOI：
10.1016/j.energy.2015.12.017
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发表时间：
2016-02
期刊：
影响因子：
9
通讯作者：
Liu Xiaolong
中科院分区：
文献类型：
--
作者：
Wang Shuofeng;Ji Changwei;Zhang Bo;Cong Xiaoyu;Liu Xiaolong
CO2（二氧化碳）稀释是控制内燃机NOx（氮氧化物）排放和负荷的可行方法。研究了CO2稀释对富氢汽油机燃烧和排放特性的影响。试验在一台1.6L火花点火发动机上进行，发动机采用电控氢气和汽油喷射系统。在氢气体积分数为0和3%时，进气中CO2体积分数从0逐渐增加到4%。燃料-空气混合物保持在化学计量。试验结果表明，采用CO2稀释后，汽油机的制动平均有效压力迅速降低。相比之下，3%富氢发动机的制动平均有效压力（Bmep）随着CO2稀释度的增加而缓慢下降。适当提高CO2稀释水平可提高3%富氢汽油机的热效率。但CO2稀释后，纯汽油发动机的热效率普遍下降。汽油机在CO2稀释条件下，添加氢气可以缩短火焰发展和传播的持续时间。进气中CO2含量的增加导致NOx排放量的降低和HC（碳氢化合物）排放量的增加。在CO2稀释条件下，增加进气中氢含量可以有效降低HC排放。
CO2(Carbon dioxide) dilution is a feasible way for controlling NOx (Nitrogen oxides) emissions and loads of the internal combustion engines. This paper investigated the effect of CO2dilution on the combustion and emissions characteristics of a hydrogen-enriched gasoline engine. The experiment was conducted on a 1.6 L spark-ignition engine with electronically controlled hydrogen and gasoline injection systems. At two hydrogen volume fractions of 0 and 3%, the CO2volume fraction in the intake was gradually increased from 0 to 4%. The fuel-air mixtures were kept at the stoichiometric. The experimental results demonstrated that brake mean effective pressure of the gasoline engine was quickly reduced after adopting CO2dilution. Comparatively, Bmep (Brake mean effective pressure) of the 3% hydrogen-enriched engine was gently decreased with the increase of CO2dilution level. Thermal efficiency of the 3% hydrogen-enriched gasoline engine was raised under properly increased CO2dilution levels. However, thermal efficiency of the pure gasoline engine was generally dropped after the CO2dilution. The addition of hydrogen could shorten flame development and propagation durations under CO2diluent conditions for the gasoline engine. Increasing CO2fraction in the intake caused the dropped NOx and raised HC (Hydrocarbon) emissions. Increasing hydrogen fraction in the intake could effectively reduce HC emissions under CO2diluent conditions.
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影响因子：
7.2
作者：
Ma, Fanhua;Wang, Yu;Ding, Shangfen
通讯作者：
Ding, Shangfen
解决氢燃料发动机抑制异常燃烧与提高功率输出矛盾的优化控制研究
DOI：
10.1016/j.ijhydene.2011.04.062
发表时间：
2012
期刊：
International Journal of Hydrogen Energy(工程技术大类一区期刊)
影响因子：
--
作者：
Yang Zhenzhong;Wang Lijun;He Manlou;Cao Yongdi
通讯作者：
Cao Yongdi
影响因子：
7.2
作者：
Fanhua Ma;Yu Wang;Haiquan Liu;Yong Li;Junjun Wang;Shuli Zhao
通讯作者：
Fanhua Ma;Yu Wang;Haiquan Liu;Yong Li;Junjun Wang;Shuli Zhao
影响因子：
7.2
作者：
Leandro Quetz de Almeida;Luís Carlos M. Sales;J. R. Sodré
通讯作者：
Leandro Quetz de Almeida;Luís Carlos M. Sales;J. R. Sodré
影响因子：
7.4
作者：
Cheolwoong Park;S. Lee;Gihun Lim;Y. Choi;Chang-gi Kim
通讯作者：
Cheolwoong Park;S. Lee;Gihun Lim;Y. Choi;Chang-gi Kim