柴油机燃用黄连木籽生物柴油的燃烧及排放特性  

Combustion Characteristics and Emissions of a DI Diesel Engine Fueled with Pistacia Chinensis Bunge Seed Biodiesel

作　　者：马志豪[1] 王鑫[1] 张小玉[1] 潘永方[1] 徐斌[1] 吴健[1] 

机构地区：[1]河南科技大学车辆与动力工程学院,河南洛阳471003

出　　处：《内燃机学报》2010年第5期420-426,共7页Transactions of Csice

基　　金：国家自然科学基金资助项目(50976028);中国博士后科学基金资助项目(20090460860);河南科技大学博士启动基金资助项目(09001327)

摘　　要：在一台YTR3105直喷式柴油机上进行了黄连木籽生物柴油-柴油混合燃料试验,分析了不同负荷下的经济性、燃烧和排放特性。结果表明,发动机燃用掺混生物柴油的混合燃料,在中小负荷下,其燃油消耗率比柴油高,大负荷时燃油消耗率基本相当。生物柴油的滞燃期比柴油短,压力升高率峰值和瞬时燃烧放热率峰值低于柴油,且预混燃烧峰值所在曲轴转角较柴油有所提前。混合燃料的燃烧持续期比柴油延长,最高平均燃烧温度与柴油差别不大。与柴油相比,生物柴油的CO、HC排放均有不同程度的降低;B10与B20的NOx排放比柴油低,而B30的NOx排放与柴油相当。Reports combustion characteristics and emissions of a YTR3105 direct injection diesel engine fueled with Pistacia chinensis Bunge seed biodiesel-diesel blends.Study shows that the brake specific fuel consumption of the blends is increased at medium and light load compared with that of diesel,and at high load both types of fuels show a similar behavior.Biodiesel has short ignition delay,low values of maximum rate of pressure rise and combustion heat release rate,and advanced crank angle of peak premixed combustion compared with those of diesel.Biodiesel has long combustion duration but little difference in maximum cylinder mean temperature compared with those of diesel.Blend fuels have lower CO,HC and smoke emission than those of diesel.NOx emission has lower value than that of diesel in the case of B10 and B20 but has higher value in the case of B30.

关 键 词：柴油机 黄连木籽生物柴油 燃烧 排放 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]