内燃机工程2018，Vol.39Issue(1)：15-22,8.DOI:10.13949/j.cnki.nrjgc.2018.01.003
甲醇和甲醇重整气对直喷汽油机性能影响的对比研究
Effect of Methanol or Methanol Reformate Addition on GDISI Engine Performance
摘要
Abstract
The influence of methanol and methanol reformate on DISI engine performance was analyzed based on GT-Power the software coupled to the empirical formula of laminar flame speed with dual fuel operation.First using the empirical formula,and combustion duration were calculated successively when the engine was operating with gasoline-methanol and gasoline-methanol reformate respectively and then the calculated results were input into the combustion model to explore the influence of different mixing ratios on engine performance.Results show that compared with the direct blending of methanol,the use of methanol reformate can significantly improve thermal efficiency and torque output,reduce fuel consumption and maintain the same CO emissions,but will increase the NOxemissions especially under the lean burn conditions.This indicates that the fuel reforming has more potential to improve the thermal efficiency of GDISI engine than the direct blending of methanol.关键词
燃料重整/发动机/甲醇/甲醇重整气/层流火焰速度Key words
fuel reforming/engine/methanol/methanol reformate/laminar flame speed分类
能源科技引用本文复制引用
卫海桥,李楠,潘家营,华剑雄..甲醇和甲醇重整气对直喷汽油机性能影响的对比研究[J].内燃机工程,2018,39(1):15-22,8.基金项目
国家自然科学基金资助项目(91641203,51476114) （91641203,51476114）
中国博士后基金项目(2016M590201)National Natural Science Foundation of China (91641203,51476114) （2016M590201）
China Postdoctoral Science Foundation (2016M590201) （2016M590201）
