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国际流体力学研究期刊
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN 打印: 2152-5102
ISSN 在线: 2152-5110

国际流体力学研究期刊

DOI: 10.1615/InterJFluidMechRes.v24.i1-3.270
pages 273-282

Atomization Characteristics of Liquefied n-Butane Spray with Flash Boiling Phenomena

Hajime Fujimoto
Department of Mechanical Engineering, Doshisha University, Imadegawa-Karasuma, Kamigyo, Kyoto 602, Japan
Yo. Iwami
Taisei Construction Co. Ltd.
Jiro Senda
Department of Mechanical Engineering, Doshisha University, Kyoto, Japan

ABSTRACT

Researchers intend recently to use LPG whose main composition is the liquefied n-butane for a CI engine. One of the capabilities is the dual fuel injection system, that is, the injection of LPG at the inlet port and that of gas oil in the cylinder. The flash boiling phenomena surely occurs in the case of the inlet port injection. Then, the experiments on the characteristics of the liquefied n-butane spray were carried out in the low pressure field under the atmospheric pressure with the room temperature. The experimental variables were the back pressure, the injection pressure and the injection quantity. The relative fuel concentration was obtained on the instantaneous 2-D image of spray by processing. The droplets distribution was measured on an enlarged photograph. And the clear information are obtained from these experimental results.