酸化油生物柴油喷雾特性试验  

Experiment of Spray Characteristics of Acidic Oil Biodiesel

作　　者：李智博[1] 马志豪[1] 朱宇东[1] 孙俊[1] 

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2015年第2期39-42,5,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省自然科学基金项目(092300410125);汽车安全与节能国家重点实验室基金项目(KF11161)

摘　　要：燃油的物理特性对喷雾过程有着重要的影响,本文利用高压共轨燃油喷射系统、定容弹(CVB)、纹影仪和高速摄像机,从贯穿距离和喷雾锥角等方面来探究酸化油生物柴油和普通柴油在高背压下喷雾特性的不同。研究结果表明:喷射背压为2 MPa时,相同喷油压力下酸化油生物柴油的贯穿距离小于普通柴油;而在1 MPa背压时,其大于普通柴油。酸化油的喷雾锥角在两种背压下均小于普通柴油,而喷雾头部宽度大于普通柴油且相对较不规则。The fuel physical property has important effects on process of spray. This paper explored the difference of acidic oil biodiesel and diesel spray characteristics at high ambient pressure in terms of spray penetration and spray angle by using high pressure common rail fuel spray system,constant volume bomb( CVB),schlieren and high-speed camera. The results reveal that acidic oil has shorter spray penetration than diesel at the same injection pressure when the ambient pressure is 2 MPa,while it is contrary when the ambient pressure is 1 MPa. Acidic oil has smaller spray angle than diesel at two kinds of ambient pressure,but acidic oil has wider and more irregular spray head than diesel.

关 键 词：酸化油 喷雾特性 贯穿距离 喷雾锥角 

分 类 号：TK464[动力工程及工程热物理—动力机械及工程]