An experimental study of injection and spray characteristics of diesel and gasoline blends on a common rail injection system

Dong Han, Chunhai Wang, Yaozong Duan, Zhisong Tian and Zhen Huang

Energy, 2014, vol. 75, issue C, 513-519

Abstract: 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.

Keywords: Injection; Spray; Diesel; Gasoline; Common rail (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:75:y:2014:i:c:p:513-519

DOI: 10.1016/j.energy.2014.08.006

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