| 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。 |
| 关键词: 涡流管 进口压力 冷端孔口直径 |
| DOI： |
| 投稿时间：2016-11-08
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| 基金项目: |
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| Experimental Study on the Effect of Cold-end Aperture on the Performance of Vortex Tube |
| Shen Jiang,Bian Yujun,Guo Xinwei |
| (Refrigeration Key Laboratory of Tianjin, Tianjin University of Commerce) |
| 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. |
| Key words: vortex tube inlet pressure diameter of cold end orifice |
