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http://hdl.handle.net/10087/5714
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Title: | Mean Drop Diameter of a Diesel Spray in a Vaporizing Process |
Authors: | TABATA, Michihiko FUJII, Hiroshi ARAI, Masataka HIROYASU, Hiroyuki |
Keywords: | Internal Combustion Engine Diesel Engine Fuel Injection Atomization Diesel Spray Vaporization Sauter Mean Diameter Laser Diffraction Fraunhofer Diffraction |
Issue Date: | 15-Aug-1991 |
Publisher: | 社団法人日本機械学会 |
Citation: | JSME international journal Ser 2 Fluids engineering, heat transfer power combustion thermophysical properties. 34-Ⅱ(3), 369-378 (1991) |
Abstract: | The Sauter mean diameter and size distribution of a diesel spray in a vaporizing process were studied to obtain detailed information of the diameter change of the spray in an elevated-temperature and-pressure environment. In this study, direct photographs of the diffracted light from particles or spray drops were taken using a pulsed laser and analyzed directly. The mean particle size could be measured even if the diffracted light from particles passed through a high-ambient-temperature and-pressure environment. The liquids used for studying a vaporizing diesel spray were diesel fuel and n-heptane. The Sauter mean diameter increased to a maximum, then decreased with a further increase of the ambient temperature. The change of the Sauter mean diameter was different for different fuel evaporation rates. The increase of the Sauter mean diameter of n-heptane spray occurred at a lower ambient temperature condition than did that for the diesel spray. |
URI: | http://hdl.handle.net/10087/5714 |
ISSN: | 09148817 |
Appears in Collections: | 学術雑誌論文
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