The thermal performance of a novel convergent valveless vortex tube

被引：8

作者：

Yan, Hong ^{[1
,2
]}

Xu, Qingxiao ^{[1
,2
,3
]}

Zhao, Yongling ^{[4
]}

Xue, Yunpeng ^{[1
,2
,5
]}

机构：

[1] Shaanxi Key Lab Internal Aerodynam Aeroengine, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Yangtze River Delta Res Inst NPU, Taicang 215400, Jiangsu, Peoples R China

[3] Beijing Inst Aerosp Testing Technol, Beijing, Peoples R China

[4] Swiss Fed Inst Technol, Dept Mech & Proc Engn, CH-8093 Zurich, Switzerland

[5] Heriot Watt Univ, Sch Energy Geosci Infrastruct & Soc, Edinburgh, Midlothian, Scotland

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION | 2020年 / 119卷

基金：

美国国家科学基金会;

关键词：

Energy separation; Convergent valveless vortex tube; Thermal performance; Cyclone separator; ENERGY SEPARATION; TEMPERATURE SEPARATION; NUMERICAL-ANALYSIS; FLOW; EFFICIENCY;

D O I：

10.1016/j.ijrefrig.2020.07.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Although the mechanism of the energy separation in a vortex tube still remains debatable, it is well agreed that the geometrical parameters have significant impacts on its thermal performance. The present parametric experimental investigation sheds new light upon the temperature variation and energy separation in a novel convergent valveless vortex tube, whereas the performance of a straight vortex tube is additionally measured for comparison. The temperature variation and energy separation of the convergent vortex tube were observed in all the tested configurations and the convergent valveless vortex tube was found to have a better working performance with some configurations comparing with the conventional straight vortex tube. It achieved a maximum increase of 25 degrees in the temperature variation and 32% in the coefficient of performance (COP). This implies that it is possible to reduce the cost of a vortex tube and achieve a better performance in the meantime. (C) 2020 Elsevier Ltd and IIR. All rights reserved.

引用

页码：92 / 101

页数：10

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