车用柴油机燃用生物柴油PAHs排放特性试验研究  

An Experimental Study on the PAHs Emission Characteristics of a Vehicle Diesel Engine Fueled with Biodiesel

作　　者：陆小明[1] 葛蕴珊[2] 韩秀坤[2] 吴思进[2] 何超[2] 

机构地区：[1]集美大学机械工程学院,厦门361021 [2]北京理工大学机械与车辆工程学院,北京100081

出　　处：《汽车工程》2008年第12期1031-1034,共4页Automotive Engineering

基　　金：国家自然科学基金项目(50576003);集美大学科研基金资助

摘　　要：在发动机台架上对一台车用直喷式增压柴油机燃用生物柴油和柴油PAHs的排放特性进行试验，排气中颗粒相和气相PAHs分别用玻璃纤维滤膜和PUF／XAD-2／PUF吸附管采集，用色谱-质谱联用仪对PAHs进行定量分析。结果表明：发动机燃用生物柴油时PAHs排放浓度较燃用柴油时下降了30．4％-57．8％；燃用生物柴油时PAHs排放中对人体极为有害的苯并（a）芘浓度较燃用柴油时下降了56．6％～94．9％。PAHs emission tests of a turbocharged D. I. diesel engine fueled with biodiesel are conducted on a dynamometer. The particulate-phase and gas-phase PAHs of exhaust emissions are sampled by fiberglass film illters and PUF/XAD-2/PUF adsorption tubes respectively, and PAHs are quantitatively analyzed by GC-MS. The resuits indicate that the total PAHs emissions of the engine fueled with biodiesel are reduced by 30. 4% - 57. 8%, compared with that with diesel, and in which the BaP in PAHs emission, being highly harmful to human health, are decreased by 56. 6% -94. 9%.

关 键 词：生物柴油 PAHs排放 柴油机 试验研究 

分 类 号：U467.48[机械工程—车辆工程]