甲醇均质混合气F-T柴油引燃对柴油机综合性能的影响分析  

Diesel Engine Performance of Methanol Homogeneous Charge Induced Ignition by F-T Diesel

作　　者：王勇[1] 朱建军[1] 王晋[1] 刘磊[1] 石晋宏 

机构地区：[1]太原理工大学车辆工程系,山西太原030024

出　　处：《车用发动机》2013年第6期30-34,共5页Vehicle Engine

基　　金：国家高技术研究发展计划(863计划)项目(2012AA111720)

摘　　要：针对进气道喷入甲醇由F-T柴油引燃(HCII)的燃烧方式,在增压中冷柴油机上开展了发动机性能和排放试验。结果表明,当循环供油量一致时,标定工况下发动机的功率和扭矩与原机(仅燃用柴油)相比都有所下降,最大降幅为8%。转速为2 400r/min的负荷特性下燃用4种混合燃料时缸内最高燃烧压力均呈现上升趋势,且都低于同工况下仅燃用纯柴油时的压力。在2 400r/min的负荷特性下,随着甲醇比例的增加,NOx排放显著下降,最高降幅77%,炭烟排放低负荷时升高,高负荷时下降。Based on the combustion method of inlet port sprayed with methanol homogeneous charge induced ignition （HCII） by F-T diesel, the power and emission performance of turbocharged and intercooled engine were researched. The results show that the power and torque of rated condition decrease and the maximum drop is 8% at the same cycle fuel injection. In partial loads at 2 400 r/min, the maximum in-cylinder combustion pressure of 4 blended fuels shows the increasing trend and is lower than that of pure diesel. Besides, the NO, emission decreases significantly and has the highest drop of 77% with the increase of methanol proportion and the soot emission increases at low loads and decreases at high loads.

关 键 词：增压中冷柴油机 进气道喷射 甲醇 F-T柴油 引燃 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]