Numerical analysis of 4 K regenerator of a pulse tube cryocooler

被引：0

作者：

Zhao, Yue-Jing ^{[1
,2
]}

Dai, Wei ^{[1
]}

Wang, Xiaotao ^{[1
]}

Chen, Yan-Yan ^{[1
]}

Luo, Er-Cang ^{[1
]}

机构：

[1] Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing,100190, China

[2] University of Chinese Academy of Sciences, Beijing,100049, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2015年 / 36卷 / 10期

关键词：

Regenerators - Cryogenic equipment - Oscillating flow - Superfluid helium - Cooling;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The 4 K Regenerator of a Pulse Tube Cryocooler is numerically simulated in order to study the performance of a pulse tube cryocoolerThe mathematical models of five coupled heat transfer areas, which include compressor cavity, hot heat exchanger, regenerator, cold heat exchanger and expansion cavity, are established. At the same time, the heat transfer and oscillating ow was numerically simulated by CFD and this paper takes into account the non-ideal gas properties of 4He and the properties of the magnetic regenerative materialInteresting features such as the enthalpy flow, entropy flow, acoustic work flow, temperature distribution, etc. have been systematically studied. The results of simulation indicate that a cooling power of 0.27 W at 4.2 K was numerically obtained and therelativeCarnot efficiency is 20.6%, when the system runs at the frequency of 5 Hz, the pressure ratio of 1.37. © 2015, Science Press. All right reserved.

引用

页码：2087 / 2091