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Development of a crankshaft driven single long NiTi tube compressive elastocaloric cooler

Cheng, Siyuan ; Li, Zhengyu ; Lee, Weng Zak ; Liu, Shuoyang ; Fu, Yang ; Zhao, Yatao ; Zhang, Mengyi

Taylor & Francis 2023

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  • Título:
    Development of a crankshaft driven single long NiTi tube compressive elastocaloric cooler
  • Autor: Cheng, Siyuan ; Li, Zhengyu ; Lee, Weng Zak ; Liu, Shuoyang ; Fu, Yang ; Zhao, Yatao ; Zhang, Mengyi
  • Assuntos: Astronomical and Space Sciences not elsewhere classified ; Biological Sciences not elsewhere classified ; Biophysics ; Biotechnology ; Ecology ; Environmental Sciences not elsewhere classified ; FOS: Biological sciences ; Genetics ; Hematology ; Molecular Biology ; Space Science
  • Notas: RelationTypeNote: IsSupplementTo -- 10.1080/23744731.2023.2242756
    10.1080/23744731.2023.2242756
  • Descrição: Elastocaloric cooling has no environmental effects during operation, and achieving a compact structure especially the driver is significant for its commercialization. In this article, a compact, standalone crankshaft driven single long NiTi tube compressive elastocaloric cooler is developed. A crankshaft driver was designed and fabricated to drive a compressive elastocaloric regenerator utilizing a single long polycrystalline superelastic NiTi shape memory alloy tube (outer diameter 5 mm, wall thickness 1 mm, and initial length 305 mm). A novel design of ceramic heat insulation plate was applied to the cooler to reduce the conduction heat loss from the NiTi tube to the stainless-steel loading heads. The cooling performance of the cooler was characterized using synchronized thermocouples and infrared thermography, and the specific cooling(heating) power, temperature span, and coefficient of performance of up to 65(125) W·kg−1, 9.1 K, and 5.0, respectively were measured. The progressions of the temperature span, specific cooling(heating) power, and coefficient of performance with the operation cycle and temperature lift were analyzed. An energy analysis revealed that the heat transfer fluid carried out only 14% of the latent heat generated by the NiTi tube, which demonstrated a potential to enhance the cooling performance by the improvement in the regenerator structure.
  • Editor: Taylor & Francis
  • Data de criação/publicação: 2023
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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