Performance evaluation of the recuperative heat exchanger in a miniature Joule-Thomson cooler

H. Xue*, Kim Choon NG, J. B. Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

To develop effective heat exchangers for miniature and micro-Joule-Thomson (J-T) cooling system, the performance of the recuperative heat exchanger in a miniature J-T cooler is analyzed and evaluated. The evaluation is based on a theoretical model of the Hampson-type counter-flow heat exchanger. The effect of the pressure and temperature-dependent properties and longitudinal heat conduction are considered. The results of the numerical simulation are validated with the corresponding experimental measurements. The performance of the heat exchanger on effectiveness, flow and various heat conduction losses as well as liquefied yield fraction are analyzed and discussed. The simulation model provides a useful tool for miniature J-T cooler design.

Original languageEnglish (US)
Pages (from-to)1829-1844
Number of pages16
JournalApplied Thermal Engineering
Volume21
Issue number18
StatePublished - Dec 1 2001

Keywords

  • Effectiveness
  • Heat exchanger
  • Heat losses
  • Joule-thomson cooler
  • Performance

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

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