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An experimental research on a small flow vortex tube at low temperature ranges

机译:低温下小流量涡流管的实验研究

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A small flow vortex tube operating in low temperature below 80 K was developed. Experimental results show that there is still significant separation effect of vortex tube below 80 K for some inert gases. With LN_2 pre-cooling, the lowest temperature of 60.2 K and 3.3 W refrigeration at 67.5 K has been first achieved using a closed-cycle vortex tube refrigeration system. And an interesting inverse temperature effect was found when the cold mass fraction is less than 0.38. These achievements can help thoroughly understand the mechanism of energy separation in the vortex tube and use the vortex tube in some potential situations.
机译:开发了在80 K以下的低温下运行的小流量涡流管。实验结果表明,对于某些惰性气体,涡流管在80 K以下仍具有明显的分离效果。借助LN_2预冷,首先使用闭环涡流管制冷系统实现了60.2 K的最低温度和67.5 K的3.3 W制冷。当冷质量分数小于0.38时,会发现有趣的逆温度效应。这些成就可以帮助您全面了解涡流管中的能量分离机制,并在某些潜在情况下使用涡流管。

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