An experimental study of injection and spray characteristics of diesel and gasoline blends on a common rail injection system
An experimental study of injection and spray characteristics of diesel and gasoline blends on a common rail injection system
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共轨喷射系统柴油和汽油混合物喷射和喷雾特性的实验研究
DOI:
10.1016/j.energy.2014.08.006
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发表时间:
2014-10
期刊:
影响因子:
9
通讯作者:
Zhen Huang
中科院分区:
文献类型:
--
作者:
Chunhai Wang;Yaozong Duan;Zhisong Tian;Zhen Huang
The injection and spray characteristics of diesel and gasoline blends are investigated on a common rail injection system. The injection rate, fuel spray evolution process (tip penetration distance, spray cone angle, projected spray area and relative brightness intensity contour) and microscopic droplet features are analyzed. The results show that diesel and gasoline blends have higher volumetric injection rates, earlier starts of injection and shorter injection delays, but little variances are observed in the mass injection rates for different test fuels. Increased gasoline proportion in the test blends causes slightly decreased spray tip penetration distance but increased spray cone angle. Also, more smaller-size droplets are observed in the fuel jet of the diesel and gasoline blends, indicating that the spray breakup and atomization processes are promoted.
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