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Article

Coupled Thermoelectric Devices: Theory and Experiment

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Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Avenue Universidad No. 1001, Col Chamilpa, Cuernavaca 62209, Mexico
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Centro de Investigación en Ciencias, Universidad Autónoma del Estado de Morelos, Avenue Universidad No. 1001, Col Chamilpa, Cuernavaca 62209, Mexico
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Author to whom correspondence should be addressed.
Academic Editors: Daniel P. Sheehan and Kevin H. Knuth
Entropy 2016, 18(7), 255; https://doi.org/10.3390/e18070255
Received: 17 February 2016 / Revised: 29 March 2016 / Accepted: 1 July 2016 / Published: 14 July 2016
(This article belongs to the Special Issue Limits to the Second Law of Thermodynamics: Experiment and Theory)
In this paper, we address theoretically and experimentally the optimization problem of the heat transfer occurring in two coupled thermoelectric devices. A simple experimental set up is used. The optimization parameters are the applied electric currents. When one thermoelectric is analysed, the temperature difference Δ T between the thermoelectric boundaries shows a parabolic profile with respect to the applied electric current. This behaviour agrees qualitatively with the corresponding experimental measurement. The global entropy generation shows a monotonous increase with the electric current. In the case of two coupled thermoelectric devices, elliptic isocontours for Δ T are obtained in applying an electric current through each of the thermoelectrics. The isocontours also fit well with measurements. Optimal figure of merit is found for a specific set of values of the applied electric currents. The entropy generation-thermal figure of merit relationship is studied. It is shown that, given a value of the thermal figure of merit, the device can be operated in a state of minimum entropy production. View Full-Text
Keywords: thermoelectric device; entropy production; heat transport; irreversible processes thermoelectric device; entropy production; heat transport; irreversible processes
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MDPI and ACS Style

Rojas, J.A.; Rivera, I.; Figueroa, A.; Vázquez, F. Coupled Thermoelectric Devices: Theory and Experiment. Entropy 2016, 18, 255. https://doi.org/10.3390/e18070255

AMA Style

Rojas JA, Rivera I, Figueroa A, Vázquez F. Coupled Thermoelectric Devices: Theory and Experiment. Entropy. 2016; 18(7):255. https://doi.org/10.3390/e18070255

Chicago/Turabian Style

Rojas, Jaziel A.; Rivera, Iván; Figueroa, Aldo; Vázquez, Federico. 2016. "Coupled Thermoelectric Devices: Theory and Experiment" Entropy 18, no. 7: 255. https://doi.org/10.3390/e18070255

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