A numerical study of the Hampson-type miniature Joule-Thomson cryocooler

被引:40
作者
Chua, HT
Wang, XL
Teo, HY
机构
[1] Univ Western Australia, Sch Mech Engn, Crawley, WA 6009, Australia
[2] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore
[3] Natl Univ Singapore, Off Estate & Dev, Singapore 117587, Singapore
关键词
D O I
10.1016/j.ijheatmasstransfer.2005.08.024
中图分类号
O414.1 [热力学];
学科分类号
摘要
The Hampson-type miniature Joule-Thomson (J-T) cryocooler is widely used in electronic cooling. We develop the geometry model of the Hampson-type cryocooler to better Understand the double helical tube-and-fin heat exchanger. The steady-state governing equations of the cryogen, helical tube and fins, and shield are solved numerically and yield good agreements with experiment data. The conventional way of simulating a Hampson-type J-T cryocooler, which is accompanied by a host of empirical correction factors, especially vis-A-vis the heat exchanger geometry could now be superseded. The effort and time spent in designing a Hampson-type J-T crycooler could be greatly reduced. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:582 / 593
页数:12
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