CAJ | 학술논문

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2400 r/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2400 r/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。
침대진기도분입갑순유F-T시유인연（HCII）적연소방식，재증압중랭시유궤상개전료발동궤성능화배방시험。결과표명，당순배공유량일치시，표정공황하발동궤적공솔화뉴구여원궤（부연용시유）상비도유소하강，최대강폭위8％。전속위2400 r/min적부하특성하연용4충혼합연료시항내최고연소압력균정현상승추세，차도저우동공황하부연용순시유시적압력。재2400 r/min적부하특성하，수착갑순비례적증가，NOx 배방현저하강，최고강폭77％，탄연배방저부하시승고，고부하시하강。
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 NOx 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 .