The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device

Summary: Compact, solid thermal control devices offer a new way to control the intensity and direction of heat flow between the components of a system, which is crucial for both optimized performance and safety. In this work we study a thin, silicon thermal switch capacitor (TSC) used for heat trans...

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Main Authors: Nada Petelin, Katja Vozel, Katja Klinar, Andrej Kitanovski
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004222017898
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author Nada Petelin
Katja Vozel
Katja Klinar
Andrej Kitanovski
author_facet Nada Petelin
Katja Vozel
Katja Klinar
Andrej Kitanovski
author_sort Nada Petelin
collection DOAJ
description Summary: Compact, solid thermal control devices offer a new way to control the intensity and direction of heat flow between the components of a system, which is crucial for both optimized performance and safety. In this work we study a thin, silicon thermal switch capacitor (TSC) used for heat transport in a magnetocaloric cooling system. A numerical model was developed to quantify the effects of various operating conditions and design parameters on the performance of a magnetocaloric device with an embedded TSC. Based on realistic material properties, a maximum cooling-power density of 4000 Wm-2 (2025 Wkgmcm−1) was obtained for a zero temperature span and an operating frequency of 20 Hz. The use of the presented device was demonstrated on a battery system, motivating further experimental studies to develop a new, compact cooling device that can be directly attached to a heat reservoir, making it desirable for a variety of applications.
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spelling doaj.art-79256f29f5894d81a2d7bedb914aa74a2022-12-22T04:39:25ZengElsevieriScience2589-00422022-12-012512105517The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling deviceNada Petelin0Katja Vozel1Katja Klinar2Andrej Kitanovski3Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, Slovenia; Corresponding authorSummary: Compact, solid thermal control devices offer a new way to control the intensity and direction of heat flow between the components of a system, which is crucial for both optimized performance and safety. In this work we study a thin, silicon thermal switch capacitor (TSC) used for heat transport in a magnetocaloric cooling system. A numerical model was developed to quantify the effects of various operating conditions and design parameters on the performance of a magnetocaloric device with an embedded TSC. Based on realistic material properties, a maximum cooling-power density of 4000 Wm-2 (2025 Wkgmcm−1) was obtained for a zero temperature span and an operating frequency of 20 Hz. The use of the presented device was demonstrated on a battery system, motivating further experimental studies to develop a new, compact cooling device that can be directly attached to a heat reservoir, making it desirable for a variety of applications.http://www.sciencedirect.com/science/article/pii/S2589004222017898Materials scienceThermal engineeringThermal property
spellingShingle Nada Petelin
Katja Vozel
Katja Klinar
Andrej Kitanovski
The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
iScience
Materials science
Thermal engineering
Thermal property
title The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
title_full The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
title_fullStr The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
title_full_unstemmed The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
title_short The numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
title_sort numerical study on performance evaluation of a thermal switch capacitor in a magnetocaloric cooling device
topic Materials science
Thermal engineering
Thermal property
url http://www.sciencedirect.com/science/article/pii/S2589004222017898
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