Resistance-capacitance thermal models as alternatives to finite-element numerical models in the simulation of thermoelectric modules for electric power generation
Fecha
2023Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-124014OB-I00
Impacto
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10.1016/j.enconman.2023.117419
Resumen
This paper demonstrates that resistance–capacitance models provide equal results than models based on finiteelement software when predicting the performance of a thermoelectric module under transient-state conditions.
Previous papers on this topic fall short as comparing finite-element models with simplified versions of resistance–capacitance models.
It was confirmed that resistance–capacitance ...
[++]
This paper demonstrates that resistance–capacitance models provide equal results than models based on finiteelement software when predicting the performance of a thermoelectric module under transient-state conditions.
Previous papers on this topic fall short as comparing finite-element models with simplified versions of resistance–capacitance models.
It was confirmed that resistance–capacitance models replicate results of finite-element models in the simulation of a thermoelectric module under steady-state conditions. Deviations lower than 3 % in electric power and
efficiency (ratio of electric power to heat input) are obtained for temperature differences between heat source
and heat sink as large as 200 K.
Similarly, deviations lower than 3 % are obtained for simulation of a thermoelectric module under transientstate conditions. Resistance-capacitance models not only replicate values, trends and rates of variation predicted
by finite-element models under step, linear and sinewave variations in the boundary conditions, but they also do
this with negligible computational cost. [--]
Materias
Finite-element software,
Resistance-capacitance thermal model,
Thermoelectric generator,
Thermoelectric module
Editor
Elsevier
Publicado en
Energy Conversion and Management 292 (2023) 117419
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
The authors acknowledge the support of the Spanish Ministry of Science, Innovation and Universities, and the European Regional Development Fund, under grant PID2021-124014OB-I00 (VIVOTEG). Open access funding provided by Universidad Pública de Navarra.