On an 186FA diesel engine, the experiments of diesel, biodiesel and methanol-biodiesel were carried out and the influences of methanol-biodiesel on engine performance were analyzed. The results show that, compared with pure biodiesel,biodiesel blended with 5％ and 10％, which refer to the mass ratio, methanol respectively leads to 7.4％ and 17.8％ decrease of rated power, 5.7％ and 15.0％ increase of brake specific fuel consumption, 40.0％ and 80.0％ increase of CO emission,66.7％ and 155.6％ increase of HC emission, 15.0％ and 33.3％ decrease of NOx emission and 3.8％ and 23.1％ decrease of exhaust smoking.%在186FA柴油机上,进行了燃用柴油、生物柴油和甲醇--生物柴油混合燃料的性能试验,分析了生物柴油掺烧甲醇对柴油机性能的影响规律.试验结果表明:与燃用生物柴油相比,生物柴油掺烧5%和10%(质量比)的甲醇时,柴油机的标定功率分别降低7.4%和17.8%,标定工况时能量消耗率增加5.7%和15.0%,CO排放升高40.0%和80.0%,HC排放升高66.7%和155.6%,NOx排放降低15.0%和33.3%,排气烟度降低3.8%和23.1%.
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