摘要
基于一台可满足国六b排放标准的11 L重型柴油机,采用纯柴油、体积比85%柴油+15%正丁醇和体积比70%柴油+30%正丁醇燃料研究了燃料属性和冷却液温度对柴油机循环波动的影响。结果表明,添加不同比例正丁醇对循环波动的影响并无明显规律,即燃料属性对循环波动的影响机理复杂并可能呈现随机性。冷却液温度升高,循环波动降低,这在低负荷时更加明显。低十六烷值燃料在低负荷时更宜采取较高的冷却液温度。
Based on a 11 L heavy-duty diesel engine which can meet ChinaⅥb emission standards,by using pure diesel,85%diesel+15%butanol,and 70%diesel+30%butanol by volume,the effects of fuel properties and coolant temperatures on cycle variation were studied.The results showed that there are no clear laws on the effects of adding different proportions of n-butanlol on cycle variation.The effect of fuel properties on cycle variation is complex,and may be random.With coolant temperature increasing,cycle variation decreases,especially at low loads.High coolant temperature is more suitable for low cetane fuel at low loads.
作者
谭贵荣
赵增亮
潘明章
TAN Guirong;ZHAO Zengliang;PAN Mingzhang(Guangxi Yuchai Machinery Group Company,Yulin 537000,China;School of Mechanical Engineering,Guangxi University,Nanning 545003,China)
出处
《内燃机工程》
CAS
CSCD
北大核心
2023年第3期109-113,124,共6页
Chinese Internal Combustion Engine Engineering
基金
国家自然科学基金项目(22172038)
内燃机燃烧学国家重点实验开发课题项目(K2021-09)。
关键词
燃料属性
冷却液温度
循环波动
柴油机
fuel property
coolant temperature
cycle variation
diesel engine
