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Performance analysis of a novel oscillating flow cooler for sensible loads cooled from the ambient temperature

Author

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  • He, Yuehui
  • Luo, Baojun

Abstract

Regenerator is widely considered as an indispensable component in the oscillating flow coolers such as the Stirling, pulse-tube, Gifford–McMahon and Vuillemier cycles. However, characteristic of temperature glide heat addition in One-way oscillating flow cycle (OOFC) could reduce the necessity of regenerator in such oscillating flow cooler. In this work, a structure of OOFC cooler with no regenerator is proposed. A one-dimensional computational fluid dynamic model is established for providing reliable simulation results. Characteristics of novel cooler is studied. And, the performance is studied at wide conditions with different isothermal hot temperature Th (302 K/308 K/314 K/320 K) and temperature glide cold temperature (275 K ∼ Th). The relative Carnot efficiency based on the equivalent cold temperature and the lowest cold temperature is 0.34–0.36 and 0.68–0.71 respectively. Moreover, performance of OOFC cooler with regenerator is studied and compared. The ratio of cooling capacity and relative Carnot efficiency in the OOFC cooler with regenerator over novel cooler are 87 %–102 % and 91.5 %–94.8 % respectively. Overall, the results demonstrates that the removal of regenerator in oscillating flow cycle cooler is feasible and OOFC cooler with no regenerator is efficient for sensible loads cooled from the ambient temperature.

Suggested Citation

  • He, Yuehui & Luo, Baojun, 2025. "Performance analysis of a novel oscillating flow cooler for sensible loads cooled from the ambient temperature," Energy, Elsevier, vol. 319(C).
    • Handle: RePEc:eee:energy:v:319:y:2025:i:c:s0360544225007327
    DOI: 10.1016/j.energy.2025.135090
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