https://doi.org/10.1140/epjp/s13360-023-04052-8
Regular Article
A comprehensive thermodynamic model for temperature change in caloric effects
1
Departamento de Engenharia Mecânica, Universidade Estadual de Maringá, 87020-900, Maringá, PR, Brazil
2
Departamento de Engenharia Química, Universidade Federal de São Paulo, 09913-030, Diadema, SP, Brazil
3
Instituto de Física Armando Dias Tavares, Universidade do Estado do Rio de Janeiro, UERJ, Rua São Francisco Xavier, 524, 20550-013, Rio de Janeiro, RJ, Brazil
4
Departamento de Química, Universidade Estadual de Maringá, 87020-900, Maringá, PR, Brazil
5
Centro de Tecnologia, Universidade Federal de Alagoas, 57072-970, Maceió, AL, Brazil
Received:
10
March
2023
Accepted:
27
April
2023
Published online:
18
May
2023
Solid-state cooling based on caloric effects may be an alternative to conventional vapor-compression refrigeration systems. The adiabatic temperature change (
) is one of the parameters that characterize the caloric effects; therefore, it is important to obtain the correct values and, whenever possible, to correlate this parameter with thermodynamic and microscopic quantities. In this work, we propose a comprehensive thermodynamic model that allows us to determine the adiabatic temperature change from non-adiabatic measurements of temperature change induced by a field change. Our model fits efficiently temperature versus time and temperature change versus the inverse of the field change rate data for three different materials presenting different caloric effects. The results indicate that the present model is a very useful and robust tool to obtain the correct values and to correlate with other thermodynamic quantities.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjp/s13360-023-04052-8.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
