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Fluidic EWOD thermal switch for magnetocaloric device.

Number: 0338

Author(s) : KLINAR K., VOZEL K., PETELIN N., TOMC U., KITANOVSKI A.

Summary

Although caloric refrigeration is foreseen as one of the most promising alternatives to vapour-compression refrigeration, the current low power density of caloric devices is a serious obstacle that must be overcome prior to market applications. To improve power density, the number of thermodynamic cycles per unit of time, or frequency, must be increased. A promising solution is seen in thermal switching mechanisms that act as control elements for the heat flux. In this work, we present the preliminary results of the design and experimental analysis of a thermal switch in the form of liquid droplets to be used in a magnetocaloric device. The thermal switch consists of a droplet actuated by electrowetting that transfers heat between two vertically separated plates. We designed such a thermal switch and experimentally measured a switching time of 18 ± 1.5 ms. The preliminary heat transfer analysis was evaluated numerically.

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Pages: 10 p.

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Details

  • Original title: Fluidic EWOD thermal switch for magnetocaloric device.
  • Record ID : 30031599
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0338

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