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A Model for Material Metrics in Thermoelectric Thomson Coolers

Thomson heat absorption corresponding to changes in the Seebeck coefficient with respect to temperature enables the design of thermoelectric coolers wherein Thomson cooling is the dominant term, i.e., the Thomson coolers. Thomson coolers extend the working range of Peltier coolers to larger temperat...

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Detalles Bibliográficos
Autores principales: Zebarjadi, Mona, Akbari, Omid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10670593/
https://www.ncbi.nlm.nih.gov/pubmed/37998232
http://dx.doi.org/10.3390/e25111540
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author Zebarjadi, Mona
Akbari, Omid
author_facet Zebarjadi, Mona
Akbari, Omid
author_sort Zebarjadi, Mona
collection PubMed
description Thomson heat absorption corresponding to changes in the Seebeck coefficient with respect to temperature enables the design of thermoelectric coolers wherein Thomson cooling is the dominant term, i.e., the Thomson coolers. Thomson coolers extend the working range of Peltier coolers to larger temperature differences and higher electrical currents. The Thomson coefficient is small in most materials. Recently, large Thomson coefficient values have been measured attributed to thermally induced phase change during magnetic and structural phase transitions. The large Thomson coefficient observed can result in the design of highly efficient Thomson coolers. This work analyzes the performance of Thomson coolers analytically and sets the metrics for evaluating the performance of materials as their constituent components. The maximum heat flux when the Thomson coefficient is constant is obtained and the performance is compared to Peltier coolers. Three dimensionless parameters are introduced which determine the performance of the Thomson coolers and can be used to analyze the coefficient of performance, the maximum heat flux, and the maximum temperature difference of a Thomson cooler.
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spelling pubmed-106705932023-11-14 A Model for Material Metrics in Thermoelectric Thomson Coolers Zebarjadi, Mona Akbari, Omid Entropy (Basel) Article Thomson heat absorption corresponding to changes in the Seebeck coefficient with respect to temperature enables the design of thermoelectric coolers wherein Thomson cooling is the dominant term, i.e., the Thomson coolers. Thomson coolers extend the working range of Peltier coolers to larger temperature differences and higher electrical currents. The Thomson coefficient is small in most materials. Recently, large Thomson coefficient values have been measured attributed to thermally induced phase change during magnetic and structural phase transitions. The large Thomson coefficient observed can result in the design of highly efficient Thomson coolers. This work analyzes the performance of Thomson coolers analytically and sets the metrics for evaluating the performance of materials as their constituent components. The maximum heat flux when the Thomson coefficient is constant is obtained and the performance is compared to Peltier coolers. Three dimensionless parameters are introduced which determine the performance of the Thomson coolers and can be used to analyze the coefficient of performance, the maximum heat flux, and the maximum temperature difference of a Thomson cooler. MDPI 2023-11-14 /pmc/articles/PMC10670593/ /pubmed/37998232 http://dx.doi.org/10.3390/e25111540 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zebarjadi, Mona
Akbari, Omid
A Model for Material Metrics in Thermoelectric Thomson Coolers
title A Model for Material Metrics in Thermoelectric Thomson Coolers
title_full A Model for Material Metrics in Thermoelectric Thomson Coolers
title_fullStr A Model for Material Metrics in Thermoelectric Thomson Coolers
title_full_unstemmed A Model for Material Metrics in Thermoelectric Thomson Coolers
title_short A Model for Material Metrics in Thermoelectric Thomson Coolers
title_sort model for material metrics in thermoelectric thomson coolers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10670593/
https://www.ncbi.nlm.nih.gov/pubmed/37998232
http://dx.doi.org/10.3390/e25111540
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