Producing fine drops of water by twin-fluid atomisation

被引:29
作者
Nguyen, DA [1 ]
Rhodes, MJ [1 ]
机构
[1] Monash Univ, Dept Chem Engn, Clayton, Vic 3168, Australia
关键词
twin-fluid atomisation; capillary; atomiser geometry;
D O I
10.1016/S0032-5910(98)00125-9
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
An experimental study into the production of fine drops of water by twin-fluid atomisation has been carried out using two types of atomiser; an internal mixing type atomiser and a novel type of prefilming ah-blast atomiser. The internal mixing type atomiser produced water sprays with volume median drop diameters as low as 10 mu m with air to water mass flow ratios less that unity. A simple novel design of prefilming atomiser achieved comparable performance using air pressures below 10 bar. Semi-empirical correlations for volume median drop diameter with atomiser geometry and operating conditions are proposed for both kinds of atomiser. An experimental study of the pressure drop for two-phase flow across a capillary has also been conducted and results are compared with theoretical predictions. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:285 / 292
页数:8
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