Experimental Study on the Effect of Cold-end Aperture on the Performance of Vortex Tube

Shen Jiang; Bian Yujun; Guo Xinwei

doi:10.3969/j.issn.0253-4339.2017.06.087

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Experimental Study on the Effect of Cold-end Aperture on the Performance of Vortex Tube

更新时间：2024-07-18

- Experimental Study on the Effect of Cold-end Aperture on the Performance of Vortex Tube
- Journal of Refrigeration Vol. 38, Issue 6, (2017)
- 作者机构：
  
  天津商业大学天津市制冷技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2017.06.087
  CLC：
- Published：2017
- 稿件说明：
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Shen Jiang, Bian Yujun, Guo Xinwei. Experimental Study on the Effect of Cold-end Aperture on the Performance of Vortex Tube[J]. Journal of refrigeration, 2017, 38(6).
DOI：

Shen Jiang, Bian Yujun, Guo Xinwei. Experimental Study on the Effect of Cold-end Aperture on the Performance of Vortex Tube[J]. Journal of refrigeration, 2017, 38(6). DOI： 10.3969/j.issn.0253-4339.2017.06.087.

摘要

本文搭建了涡流管性能实验台，研究了不同冷端孔口直径的涡流管实验样机的性能。当进口压力为0.3~0.5 MPa时，分析了冷端孔径对冷端温降特性、制冷量特性、等熵温度效率特性及COP特性的影响。结果表明：冷端孔口直径对涡流管性能有很大影响，存在一个使涡流管冷端温降及制冷量均达到最大值的最佳冷端孔口直径，在本文设计的涡流管几何尺寸条件下，最佳冷端孔口直径为5 mm，最佳冷端孔口直径与热端直径比为0.5。

Abstract

The influence of different cold end orifice diameter on the performance of vortex tube was studied using the test bench. In the 0.3-0.5 MPa range of inlet pressure

the effect of cold end pore size on the temperature drop

the characteristics of refrigeration capacity

the efficiency of the temperature and the COP characteristics were analyzed. The experimental results showed that the cold end orifice diameter on the vortex tube has a great impact on performance

and there exists a cold end orifice diameter of a vortex tube which makes the cold end temperature drop and refrigeration capacity reach the maximum. Under the current conditions of the vortex tube

the optimal diameter of the cold end orifice is 5 mm

and the ratio between the best cold end orifice diameter and the best hot end diameter is 0.5.

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