Advances on a cryogen-free Vuilleumier type pulse tube cryocooler

Yanan Wang, Yuejing Zhao, Yibing Zhang, Xiaotao Wang, Srinivas Vanapalli, Wei Dai*, Haibing Li, Ercang Luo

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

This paper presents experimental results and numerical evaluation of a Vuilleumier (VM) type pulse tube cryocooler. The cryocooler consists of three main subsystems: a thermal compressor, a low temperature pulse tube cryocooler, and a Stirling type precooler. The thermal compressor, similar to that in a Vuilleumier cryocooler, is used to drive the low temperature stage pulse tube cryocooler. The Stirling type precooler is used to establish a temperature difference for the thermal compressor to generate pressure wave. A lowest no-load temperature of 15.1 K is obtained with a pressure ratio of 1.18, a working frequency of 3 Hz and an average pressure of 2.45 MPa. Numerical simulations have been performed to help the understanding of the system performance. With given experimental conditions, the simulation predicts a lowest temperature in reasonable agreement with the experimental result. Analyses show that there is a large discrepancy in the pre-cooling power between experiments and calculation, which requires further investigation.

Original languageEnglish
Pages (from-to)62-67
Number of pages6
JournalCryogenics
Volume82
DOIs
Publication statusPublished - 1 Mar 2017

Keywords

  • Numerical simulations
  • Thermal compressor
  • Vuilleumier type pulse tube cryocooler

Fingerprint Dive into the research topics of 'Advances on a cryogen-free Vuilleumier type pulse tube cryocooler'. Together they form a unique fingerprint.

Cite this