Microscopic and macroscopic characterization of spray impingement under flash boiling conditions with the application of split injection strategy

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Microscopic and macroscopic characterization of spray impingement under flash boiling conditions with the application of split injection strategy. / Wang, Ziman; Li, Yanfei; Guo, Hengjie; Wang, Chongming; Xu, Hongming.

In: Fuel, Vol. 212, 15.01.2018, p. 315-325.

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@article{cf46309db06a4c54b6e2eb0f01caf00d,
title = "Microscopic and macroscopic characterization of spray impingement under flash boiling conditions with the application of split injection strategy",
abstract = "Microscopic and macroscopic impingement characteristics of a single jet were investigated under various flash boiling conditions. The influences of split injection strategy and the related interaction between split injections were studied. The fuel concentration distribution during the impingement process was also quantified. It was found that non-flash boiling condition lead to large secondary droplets and ligaments, resulting in a large amount of liquid fuel deposited on the impact surface. The boosted flash boiling could effectively reduce the sizes of primary droplets and secondary droplets and the resultant deposited fuel. The employment of split injection strategy could further decrease the deposited fuel. The second split injection built up the fuel film more quickly than the first injection due to the existence of the built fuel film by the first injection, however, increasing flash boiling strength decreased the building-up rate by improving dispersion and evaporation. In addition, the concentration of the deposited fuel on the surface could effectively be reduced by enhanced flash boiling and the lifetime of dense fuel was shortened by increasing dwell interval between split injections.",
keywords = "Flash boiling, Impingement, Split injection, Spray",
author = "Ziman Wang and Yanfei Li and Hengjie Guo and Chongming Wang and Hongming Xu",
year = "2018",
month = jan,
day = "15",
doi = "10.1016/j.fuel.2017.10.028",
language = "English",
volume = "212",
pages = "315--325",
journal = "Fuel",
issn = "0016-2361",
publisher = "Elsevier Korea",

}

RIS

TY - JOUR

T1 - Microscopic and macroscopic characterization of spray impingement under flash boiling conditions with the application of split injection strategy

AU - Wang, Ziman

AU - Li, Yanfei

AU - Guo, Hengjie

AU - Wang, Chongming

AU - Xu, Hongming

PY - 2018/1/15

Y1 - 2018/1/15

N2 - Microscopic and macroscopic impingement characteristics of a single jet were investigated under various flash boiling conditions. The influences of split injection strategy and the related interaction between split injections were studied. The fuel concentration distribution during the impingement process was also quantified. It was found that non-flash boiling condition lead to large secondary droplets and ligaments, resulting in a large amount of liquid fuel deposited on the impact surface. The boosted flash boiling could effectively reduce the sizes of primary droplets and secondary droplets and the resultant deposited fuel. The employment of split injection strategy could further decrease the deposited fuel. The second split injection built up the fuel film more quickly than the first injection due to the existence of the built fuel film by the first injection, however, increasing flash boiling strength decreased the building-up rate by improving dispersion and evaporation. In addition, the concentration of the deposited fuel on the surface could effectively be reduced by enhanced flash boiling and the lifetime of dense fuel was shortened by increasing dwell interval between split injections.

AB - Microscopic and macroscopic impingement characteristics of a single jet were investigated under various flash boiling conditions. The influences of split injection strategy and the related interaction between split injections were studied. The fuel concentration distribution during the impingement process was also quantified. It was found that non-flash boiling condition lead to large secondary droplets and ligaments, resulting in a large amount of liquid fuel deposited on the impact surface. The boosted flash boiling could effectively reduce the sizes of primary droplets and secondary droplets and the resultant deposited fuel. The employment of split injection strategy could further decrease the deposited fuel. The second split injection built up the fuel film more quickly than the first injection due to the existence of the built fuel film by the first injection, however, increasing flash boiling strength decreased the building-up rate by improving dispersion and evaporation. In addition, the concentration of the deposited fuel on the surface could effectively be reduced by enhanced flash boiling and the lifetime of dense fuel was shortened by increasing dwell interval between split injections.

KW - Flash boiling

KW - Impingement

KW - Split injection

KW - Spray

UR - http://www.scopus.com/inward/record.url?scp=85032876819&partnerID=8YFLogxK

U2 - 10.1016/j.fuel.2017.10.028

DO - 10.1016/j.fuel.2017.10.028

M3 - Article

AN - SCOPUS:85032876819

VL - 212

SP - 315

EP - 325

JO - Fuel

JF - Fuel

SN - 0016-2361

ER -