Vortex tube optimization theory

被引:58
作者
Lewins, J
Bejan, A
机构
[1] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA
[2] Univ Cambridge Magdalene Coll, Cambridge CB3 0AG, England
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0360-5442(99)00039-0
中图分类号
O414.1 [热力学];
学科分类号
摘要
The Ranque-Hilsch vortex tube splits a single high pressure stream of gas into cold and warm streams. Simple models for the vortex tube combined with regenerative precooling are given from which an optimization can be undertaken. Two such optimizations are needed: the first shows that at any given cut or fraction of the cold stream, the best refrigerative load, allowing for the temperature lift, is nearly half the maximum loading that would result in no lift. The second optimization shows that the optimum cut is an equal division of the vortex streams between hot and cold. Bounds are obtainable within this theory for the performance of the system for a given gas and pressure ratio. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:931 / 943
页数:13
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