Experimental investigation on energy separation in a counter-flow Ranque-Hilsch vortex tube: Effect of cooling a hot tube

被引：72
|
作者：
Eiamsa-ard, S. [1 ]
Wongcharee, K. [2 ]
Promvonge, P. [3 ]
机构：
[1] Mahanakorn Univ Technol, Dept Mech Engn, Fac Engn, Bangkok 10530, Thailand
[2] Mahanakorn Univ Technol, Dept Chem Engn, Fac Engn, Bangkok 10530, Thailand
[3] King Mongkuts Inst Technol Ladkrabang, Dept Mech Engnm, Fac Engn, Bangkok 10520, Thailand
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2010年 / 37卷 / 02期
关键词：
Energy/temperature separation; Ranque-Hilsch vortex tube; Vortex tube; Cooling; IN OVAL TUBE; HEAT-TRANSFER; NUMERICAL-SIMULATION; TEMPERATURE SEPARATION; LONGITUDINAL VORTEX; GENERATORS; PERFORMANCE; PREDICTION; COMBUSTOR; CHANNEL;
D O I：
10.1016/j.icheatmasstransfer.2009.09.013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents the effects of cooling of a hot tube on the temperature separation (the temperature reduction of cold air) and cooling efficiency in a counter-flow Ranque-Hilsch vortex tube (RHVT). In the experiments, the hot tube is directly cooled by cooling water jacket. The obtained results reveal that cooling water plays an important role in promoting the energy separation in the RHVT. Consequently, the temperature reduction of the cold tube (T(i) - T(c)) and thus cooling efficiency in the RHVT with cooling of a hot tube is found to be higher than those of the RHVT without the cooling, under the similar operating conditions. Over the range investigated, the mean cold air temperature reduction and cooling efficiency of the RHVT with the cooling of a hot tube are respectively, 5.5 to 8.8% and 4.7 to 9% higher than those of the RHVT without the cooling. (C) 2009 Elsevier Ltd. All rights reserved.
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页码：156 / 162
页数：7
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