Microscopic level study on the spray impingement process and characteristics

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Microscopic level study on the spray impingement process and characteristics. / Wang, Ziman; Guo, Hengjie; Wang, Chongming; Xu, Hongming; Li, Yanfei.

In: Applied Energy, Vol. 197, 01.07.2017, p. 114-123.

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@article{fea1e0a0ecc0469a8656a65acf89570f,
title = "Microscopic level study on the spray impingement process and characteristics",
abstract = "Spray impingement adversely affects fuel mixture preparation, combustion performance and emissions and more studies are required to understand this process. The isooctane spray impingement process and characteristics were investigated by ultrahigh speed imaging technique with the employment of highly spatially resolved long distance microscope. The effects of impact surface temperature were also studied. It was found that during the initial stage and steady stage of spray impingement, a large proportion of droplets splashed due to high velocity. The droplet size after impingement generally reduced because of the strong collision. For the end stage of impingement, droplets tended to stick on the impact surface and float on the fuel film due to the low droplet velocity and the existence of built liquid fuel film. It was also found that hot impact surface could only improve the impingement and reduced the film building-up rate in the initial stage. The steady stage and end stage of spray impingement were less affected by the variation in impact surface temperature.",
keywords = "Breakup, Film thickness, Impingement, Spray",
author = "Ziman Wang and Hengjie Guo and Chongming Wang and Hongming Xu and Yanfei Li",
year = "2017",
month = jul,
day = "1",
doi = "10.1016/j.apenergy.2017.04.014",
language = "English",
volume = "197",
pages = "114--123",
journal = "Applied Energy",
issn = "0306-2619",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Microscopic level study on the spray impingement process and characteristics

AU - Wang, Ziman

AU - Guo, Hengjie

AU - Wang, Chongming

AU - Xu, Hongming

AU - Li, Yanfei

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Spray impingement adversely affects fuel mixture preparation, combustion performance and emissions and more studies are required to understand this process. The isooctane spray impingement process and characteristics were investigated by ultrahigh speed imaging technique with the employment of highly spatially resolved long distance microscope. The effects of impact surface temperature were also studied. It was found that during the initial stage and steady stage of spray impingement, a large proportion of droplets splashed due to high velocity. The droplet size after impingement generally reduced because of the strong collision. For the end stage of impingement, droplets tended to stick on the impact surface and float on the fuel film due to the low droplet velocity and the existence of built liquid fuel film. It was also found that hot impact surface could only improve the impingement and reduced the film building-up rate in the initial stage. The steady stage and end stage of spray impingement were less affected by the variation in impact surface temperature.

AB - Spray impingement adversely affects fuel mixture preparation, combustion performance and emissions and more studies are required to understand this process. The isooctane spray impingement process and characteristics were investigated by ultrahigh speed imaging technique with the employment of highly spatially resolved long distance microscope. The effects of impact surface temperature were also studied. It was found that during the initial stage and steady stage of spray impingement, a large proportion of droplets splashed due to high velocity. The droplet size after impingement generally reduced because of the strong collision. For the end stage of impingement, droplets tended to stick on the impact surface and float on the fuel film due to the low droplet velocity and the existence of built liquid fuel film. It was also found that hot impact surface could only improve the impingement and reduced the film building-up rate in the initial stage. The steady stage and end stage of spray impingement were less affected by the variation in impact surface temperature.

KW - Breakup

KW - Film thickness

KW - Impingement

KW - Spray

UR - http://www.scopus.com/inward/record.url?scp=85017094818&partnerID=8YFLogxK

U2 - 10.1016/j.apenergy.2017.04.014

DO - 10.1016/j.apenergy.2017.04.014

M3 - Article

AN - SCOPUS:85017094818

VL - 197

SP - 114

EP - 123

JO - Applied Energy

JF - Applied Energy

SN - 0306-2619

ER -