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Elasto-thermoelectric non-linear, fully coupled, and dynamic finite element analysis of pulsed thermoelectrics

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Elasto-thermoelectric non-linear, fully coupled, and dynamic finite element analysis of pulsed thermoelectrics

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dc.contributor.author Pérez-Aparicio, José L. es_ES
dc.contributor.author Palma, Roberto es_ES
dc.contributor.author Moreno-Navarro, Pablo es_ES
dc.date.accessioned 2017-07-06T12:12:13Z
dc.date.available 2017-07-06T12:12:13Z
dc.date.issued 2016-08-25
dc.identifier.issn 1359-4311
dc.identifier.uri http://hdl.handle.net/10251/84599
dc.description.abstract This paper presents a numerical study on the influence of pulsed electric signals applied to the overcooling of thermoelectric devices. To this end, an experimental setup taken from the literature and a commercial cell are simulated using a complete, specially developed research finite element code. The electro-thermal coupling is extended to include the elastic field, demonstrating that the increment of cooling can produce mechanical failure. Numerical results are developed and the variation of overcooling versus pulse gain and versus duration is validated towards a new analytical expression and the experimental data. The issue of optimal intensity at steady-state is also newly developed. Thermal and mechanical trends are presented using constant and variable (with temperature) material properties for a single thermoelement. While some of the first trends are similar to those of published works, others are different or directly new, all closer to those of the experiments. The mechanical results have not been thoroughly studied until recently. The three-dimensional finite element mesh includes non-thermoelectric materials that are fundamental for the current study. Distribution of stresses during steady and transient states are shown inside the thermoelement, for five components and for the combined Tresca stress. Concentrations at corners of the lower side appear close to the cold face. Due to these concentrations, 27-node isoparametric, quadratic brick elements are used. It is shown that the mechanical field is an important factor in the design of pulsed thermoelectrics, since for practical applications the stress levels are close or slightly above the admissible limits. es_ES
dc.description.sponsorship This research was partially supported by grants CSD2008-00037 Canfranc Underground Physics and Polytechnic University of Valencia under programs PAID 02-11-1828 and 05-10-2674. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation CSD2008-00037 Canfranc Underground Physics es_ES
dc.relation Polytechnic University of Valencia under programs PAID 02-11-1828 es_ES
dc.relation Polytechnic University of Valencia under programs PAID 05-10-2674 es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Pulsed thermoelectric materials es_ES
dc.subject Joule es_ES
dc.subject Peltier es_ES
dc.subject Thomson es_ES
dc.subject Thermal stresses es_ES
dc.subject Dynamic analytical solution es_ES
dc.subject Optimal intensity es_ES
dc.subject Stress distributions es_ES
dc.subject.classification MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS es_ES
dc.title Elasto-thermoelectric non-linear, fully coupled, and dynamic finite element analysis of pulsed thermoelectrics es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2016.05.114
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras - Departament de Mecànica dels Medis Continus i Teoria d'Estructures es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny es_ES
dc.description.bibliographicCitation Pérez-Aparicio, JL.; Palma, R.; Moreno-Navarro, P. (2016). Elasto-thermoelectric non-linear, fully coupled, and dynamic finite element analysis of pulsed thermoelectrics. Applied Thermal Engineering. 107:398-409. doi:10.1016/j.applthermaleng.2016.05.114 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.applthermaleng.2016.05.114 es_ES
dc.description.upvformatpinicio 398 es_ES
dc.description.upvformatpfin 409 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 107 es_ES
dc.relation.senia 315887 es_ES


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