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Design of vortex tubes and experimental program on LOX separation using cryogenic vortex tubes

机译:涡流管的设计及低温涡流管分离LOX的实验程序

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The use of CFD techniques to arrive at optimum design parameters of vortex tubes to fabricate them is described. Experimental studies have shown that for a 12 mm diameter straight vortex tube with six conical nozzles, maximum temperature difference of ≈ 109 K between hot and cold end flows was obtained for length to diameter ratio (L/D) > 25 and with optimum cold end diameter (d_c) of 7 mm. Studies of LOX separation from pre-cooled air flow show that conical vortex tube gives highest LOX purity of ≈ 96% and the higher separation efficiency of ≈ 61% compared to straight vortex tubes.
机译:描述了使用CFD技术获得涡流管的最佳设计参数以制造它们的方法。实验研究表明,对于直径为12 mm的带有六个锥形喷嘴的直涡管,在长径比(L / D)> 25且冷端最佳的情况下,热端和冷端之间的最大温差为≈109K。直径(d_c)为7毫米。从预冷气流中分离出LOX的研究表明,与直涡流管相比,锥形涡流管的LOX纯度最高,约为96%,分离效率更高,约为61%。

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