F-T柴油与生物柴油混合燃料的特性研究  

The Study of Characteristics of Blended Fuel of Fischer-Tropsch Diesel and Biodiesel

作　　者：杨甜甜[1] 王铁[1] 曹贻森 刘磊[1] 石晋宏 

机构地区：[1]太原理工大学机械工程学院,太原030024

出　　处：《太原理工大学学报》2014年第6期745-749,共5页Journal of Taiyuan University of Technology

基　　金：山西省科技重大专项资助项目;LNG液化天然气重型载货车(20111101035);山西省自然科学基金:醇醚燃料发动机燃烧及排放特性分析模型研究(2013011041-3)

摘　　要：针对目前柴油机替代燃料多为单一项,且替代燃料性能各有特点的状况,将F-T柴油和生物柴油掺混燃烧,通过试验研究,分析了0#柴油与3种混合柴油（B20F,B50F,B100）在2 400r/min不同负荷下的燃烧特性。结果表明,混合燃料随着生物柴油添加比例的增加,滞燃期变长,燃烧压力峰值、压力峰值相位、压力升高率峰值及放热率峰值均逐渐增大,但均比0#柴油低;且随着负荷的增加,燃烧压力、压力升高率和瞬时放热峰值均先增后减;混合燃料的碳烟排放明显降低,B50F和B80F的NOx排放与0#柴油接近,B20F的NOx排放比0#柴油降低了2.1%-16.7%。B20F是一个较好的混合比例,是一种较好的替代燃料。At present, most alternative fuels for diesel engine are single component fluid. Onthe basis of the specific properties of alternative fuels, the paper carried out some experiments tocompare the combustion of diesel, Fischer-Tropsch （F-T）-biodiesel blended fuel （containing bio-fuel 20%, 50%, 80%and 100%） and biodiesel at 2400 r/min. The results show that： with theincrease of the volume of biodiesel in the blended fuel, ignition delay period tends to longer, andthe combustion pressure peak value, the pressure peak value phase position, pressure rise rate andthe heat release rate peak value increase gradually, but still lower than that of diesel. With theincrease of load, the peaks of the combustion pressure,pressure rise rate and heat release rate allfirst increase then decrease. Soot emissions of all belended rules reduce significantly. Wherein, theNO2 emission of B20F is lower than diesel oil by 2.1-16.7%. Therefore,B20F is considered asa better alternative fuel with a preferable mixing ratio.

关 键 词：F-T柴油 生物柴油 混合燃料燃烧特性 排放特性 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]