摘要
车载燃料重整制氢技术可以回收发动机尾气余热,在线制取重整气与汽油混合燃烧。基于一台1.6 L四缸汽油机,在转速1 800 r/min,进气道绝对压力61.5 kPa,理论当量比条件以及最大制动扭矩点火角条件下,考察混重整气对汽油机燃烧和排放性能的影响。试验结果表明:随着进气中重整气混合分数的逐渐增加,重整气中氢气的体积分数逐渐升高,燃油油耗率降低,指示热效率升高。尾气中HC、NO x和CO2的排放量降低,而CO的排放量则有所升高。
The onboard fuel reforming could not only recovery the exhaust heat but also produce syngas for the mixed combustion in cylinders.An experimental study was carried out on a four-cylinder 1.6 L gasoline engine at a speed of 1 800 r/min,a manifolds absolute pressure of 61.5 kPa and the maximum brake torque for the spark timing to explore the effect of syngas addition on the engine combustion and emission performances at the stoichiometric condition.The experimental results demonstrated that the hydrogen volume faction in syngas increased with the increase of syngas addition faction.The fuel consumption rate was decreased and the indicated thermal efficiency was improved.HC,NO x and CO 2 emissions were reduced whereas CO emission was increased after the syngas enrichment at the stoichiometric condition.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2013年第9期7-11,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
高等学校博士学科点专项基金资助项目(20111103110010)
北京市教委科技计划重点项目(KZ201210005002)
北京市自然科学基金资助项目(3122006)
关键词
汽油机
重整气
乙醇
余热回收
排放
Gasoline engine Syngas Ethanol Exhaust heat recovery Emissions
