CFD-Simulation Assisted Design of Elastocaloric Regenerator Geometry

Kristina Navickaitė, Michael Penzel, Christian Bahl, Kurt Engelbrecht, Jaka Tušek, André Martin, Mike Zinecker and Andreas Schubert
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Kristina Navickaitė: Faculty of Mechanical Engineering, Professorship Micromanufacturing Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany
Michael Penzel: Faculty of Mechanical Engineering, Professorship Micromanufacturing Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany
Christian Bahl: Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej, 2800 Kongens Lyngby, Denmark
Kurt Engelbrecht: Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej, 2800 Kongens Lyngby, Denmark
Jaka Tušek: Faculty of Mechanical Engineering, University of Ljubljana, Aškerceva 6, SI-1000 Ljubljana, Slovenia
André Martin: Faculty of Mechanical Engineering, Professorship Micromanufacturing Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany
Mike Zinecker: Faculty of Mechanical Engineering, Professorship Micromanufacturing Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany
Andreas Schubert: Faculty of Mechanical Engineering, Professorship Micromanufacturing Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany

Sustainability, 2020, vol. 12, issue 21, 1-16

Abstract: Elastocaloric cooling is a promising alternative to conventional cooling using the vapour compression cycle, with potentially higher theoretical exergy efficiency. Nevertheless, there is a number of challenges to be tackled before the technology can be commercially available world-wide. In this study, the potential of double corrugated regenerators to enhance the cooling power of an elastocaloric device that would be operating under compression loading was investigated. The numerical performances of two types of double corrugated geometries are presented and compared to a flat plate regenerator as a reference. The double corrugated geometry significantly increases the surface area to volume ratio and convection of the regenerator, which allows an increase in the power density of the device.

Keywords: elastocaloric cooling; CFD; nature-inspired geometry; energy efficiency (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
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