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Analysis of a novel gas cycle cooler with large temperature glide for space cooling

Author

Listed:
  • Luo, Baojun
  • Su, Xiaoxue
  • Zhang, Shunfeng
  • Yan, Piaopiao
  • Liu, Jingping
  • Li, Ruijie

Abstract

Developing new cooling technologies with high energy efficiency are urgently desired for carbon neutrality. The present study demonstrates the performance of a novel gas cycle cooler with a large temperature glide allowing for a well-temperature matching between working fluid and air. The study includes a numerical simulation and parameter optimization of One-way oscillating flow cycle (OOFC) cooler with a temperature glide of 275K–293 K on the source side. A relative Carnot efficiency of 54.02 %–66.89 % is achieved at warm temperature ranging from 303 K to 323 K. As OOFC cooler has similar structure as Stirling cycle (SC) cooler, a numerical simulation and parameter optimization of SC cooler is also conducted for comparisons. The displacer's diameter and stroke in two coolers are the same for fair and reasonable comparison. Based on the respective performance achieved at the optimal relative Carnot efficiency for each cooler, the cooling capacity improvement of OOFC over SC coolers is 207 %–219 % with corresponding a relative Carnot efficiency improvement of 0.19 %–9.04 %. Based on the respective performance achieved at the same cooling capacity for each cooler, the relative Carnot efficiency improvement of OOFC over SC coolers is 32 %–52 %. Thus, OOFC cooler has overwhelming advantages over SC cooler and huge potential as an alternative to vapor compression cycle cooler for space cooling.

Suggested Citation

  • Luo, Baojun & Su, Xiaoxue & Zhang, Shunfeng & Yan, Piaopiao & Liu, Jingping & Li, Ruijie, 2025. "Analysis of a novel gas cycle cooler with large temperature glide for space cooling," Energy, Elsevier, vol. 326(C).
    • Handle: RePEc:eee:energy:v:326:y:2025:i:c:s036054422501936x
    DOI: 10.1016/j.energy.2025.136294
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