增压中冷柴油机燃用F-T柴油的燃烧特性  

Combustion Characteristic of Turbocharged and Intercooled Diesel Engine Fueled with Fischer-Tropsch Diesel

作　　者：王铁[1] 史伟奇[1] 王丁丁[1] 廖文蓉[1] 邓永慧[1] 汪恒[1] 

机构地区：[1]太原理工大学车辆工程系,山西太原030024

出　　处：《车用发动机》2013年第3期56-60,共5页Vehicle Engine

基　　金：山西省科技重大专项资助项目(20111101035)

摘　　要：在4100QBZL柴油机上对比研究了0号柴油和F-T柴油的燃烧特性。通过对比发现,与燃用柴油相比,柴油机燃用F-T柴油具有如下燃烧特性:燃烧压力峰值较低,峰值出现相位滞后;压力升高率峰值显著降低,峰值出现相位提前;放热率峰值降低明显,峰值出现相位提前;燃烧温度峰值基本不变,但峰值出现相位滞后;滞燃期显著减小,预混合燃烧期增大,扩散燃烧期在低负荷时增大,高负荷时减小;预/扩燃烧系数和预/扩燃烧率均较低;有效热效率和燃油经济性有所提升。The combustion characteristics of Fischer-Tropsch （F-T） diesel fuel and 0#diesel fuel were compared on 4100QBZL diesel engine. Fueled with F-T diesel fuel, the peak value of combustion pressure dropped and its corresponding phase delayed, the peak value of pressure rise rate decreased obviously and its corresponding phase advanced, the peak value of heat release rate decreased and its corresponding phase advanced, and the peak value of combustion temperature kept the same but its corresponding phase delayed. Besides, the ignition delay period shortened, the premix combustion period extended, and the diffusion combustion period extended in low load and shortened in high load. Both premix/diffusion combustion coefficient and combustion rate were low. The effective heat release efficiency and fuel economy improved to an extent.

关 键 词：柴油机 F—T柴油 燃烧特性 

分 类 号：TK421.7[动力工程及工程热物理—动力机械及工程]