柴油机燃用DME甲醛排放的试验分析  

Experimental Analysis of HCHO Emission from a Diesel Engine Fueled with DME

作　　者：罗红英[1] 张煜盛 吴宏伟[1] 孙海英[2] 

机构地区：[1]武汉船舶职业技术学院动力系,武汉430050 [2]华中科技大学能源与动力工程学院

出　　处：《小型内燃机与摩托车》2008年第5期47-49,65,共4页Small Internal Combustion Engine and Motorcycle

基　　金：国家重点基础研究发展规划项目(2001CB209207);湖北省教育厅科学技术研究项目(Q200753001)

摘　　要：甲醛是非常规排放物中的主要成分,用气相色谱仪检测和分析了ZS195柴油机燃用DME燃料甲醛非常规排放物。结果表明,甲醛的排放量随转速上升而略有上升,随负荷增加而不同程度的减少;此外,适当减小供油提前角,减小喷孔直径都有利于减少甲醛的排放量,而增加启喷压力则导致甲醛排放量显著增加。HCHO is the majority of unregulated emissions. HCHO unregulated emission from a ZS195 diesel engine fueled with DME are measured and analyzed by GAS Chromatography. The analysis of experiment effects have showed that the emissions of HCHO slightly increase as the rotate speed increased, and decrease to some different extent as the load increases. Moreover, appropriately reducing the advance angle of fuel injection and the diameter of injection nozzle are helpful to reduce the emissions of HCHO, but adding the injection pressure can greatly increase the emissions of HCHO.

关 键 词：二甲基醚 非常规排放物 气相色谱法 甲醛 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]