生物柴油喷雾特性的试验研究  

An Experimental Study of Bio-Diesel Spray Characteristics

作　　者：张旭升[1] 李理光[2] 邓俊[1] 黄成杰[1] 于水[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030 [2]同济大学汽车学院,上海201804

出　　处：《内燃机学报》2007年第2期172-176,共5页Transactions of Csice

基　　金：国家重点基础研究计划资助项目(2001CB209201);国家自然科学基金资助项目(50676055)

摘　　要：基于高速摄影,采用油泵试验台拍摄了常压下生物柴油和柴油的喷雾图像,并研究了油泵转速、喷孔直径和启喷压力对生物柴油喷雾贯穿距和喷雾锥角等喷雾特性的影响,对燃料特性差异与喷雾特性的影响也进行了分析讨论。结果表明:生物柴油的喷雾特性在规律上与柴油基本一致,但生物柴油的喷雾贯穿距离比柴油大,而喷雾锥角约为柴油的一半。Spray characteristics of bio-diesel were investigated by using high-speed camera at an atmos- pheric condition in a diesel pump test-bed. The effects of pump rotation speed, orifice diameter and opening pressure of nozzle on spray structure and characteristics such as spray penetration distance, near spray angle and far spray angle were studied. The effects of fuel properties on spray characteristics were analyzed. The results showed that the general behavior in spray characteristics of bio-diesel was similar to that of diesel. However, bio-diesel gives longer spray penetration distance and half spray angle comparing with those of diesel.

关 键 词：生物柴油 喷雾特性 喷雾贯穿距 喷雾锥角 

分 类 号：TK421.2[动力工程及工程热物理—动力机械及工程]