应用高速摄影系统与高压共轨系统,在高压定容器内研究了生物柴油的喷雾特性,并与柴油进行了对比。结果表明,生物柴油油束形态比柴油细且长,喷雾贯穿距离比柴油大,喷雾锥角比柴油小;高的运动黏度与表面张力导致生物柴油雾化性能比柴油差。随着喷油压力的升高,生物柴油喷雾贯穿距离变长,喷雾锥角增大;随着背压的升高,生物柴油喷雾贯穿距离变短,喷雾锥角变大,生物柴油与柴油间喷雾贯穿距离的差别变小,喷雾锥角的差别增大。
High speed photography system was used to investigate the spray behavior of biodiesel and diesel in a diesel engine common rail system.It is found that compared to diesel,biodiesel exhibits longer spray tip penetration and smaller spray cone angle.Higher viscosity and surface tension of biodiesel lead to bad atomization behavior than that of diesel.When the injection pressure increases, the spray tip penetration becomes longer and the spray cone angle becomes larger.When the ambient pressure increases,the spray tip penetration becomes shorter and spray cone angle becomes larger,the difference of spray tip penetration between biodiesel and diesel becomes smaller,and the difference of spray cone angle becomes larger.
参考文献
| [1] | Avinash Kumar Agarwal .Biofuels (alcohols and biodiesel) applications as fuels for internal combustion engines[J].Progress in energy and combustion science,2007(3):233-271. |
| [2] | Gvidonas Labeckas;Stasys Slavinskas .The effect of rapeseed oil methyl ester on direct injection Diesel engine performance and exhaust emissions[J].Energy Conversion & Management,2006(13/14):1954-1967. |
| [3] | Gao, Y;Deng, J;Li, C;Dang, F;Liao, Z;Wu, Z;Li, L .Experimental study of the spray characteristics of biodiesel based on inedible oil[J].Biotechnology Advances,2009(5):616-624. |
| [4] | Experimental and numerical analysis of spray-atomization characteristics of biodiesel fuel in various fuel and ambient temperatures conditions[J].International journal of heat and fluid flow,2009(5):960-970. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%