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Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations

Year 2016, Volume: 19 Issue: 2, 82 - 90, 25.05.2016
https://doi.org/10.5541/ijot.5000153630

Abstract

This work aims to propose routes for thermoelectric heat pump design based on Entropy Generation Minimization (EGM). The system considered is composed of a thermoelectric module sandwiched between two parallel multi-channels heat exchangers. Co-optimization of the heat exchanger and the thermoelectric module designs are lead in order to increase the system performance, depending on realistic manufacturing constraints. The optimized variables considered in this study are: the thermoelectric leg number, their length and section; and the number of channels and their length and diameter in both heat exchangers. The following dissipative contributions are identified: thermal conduction and Joule effect in the thermoelectric module, and heat transfer and viscous dissipation in both heat exchangers. On the one hand, the thermoelectric module design has to respect optimal design ratios derived analytically to meet a given thermal power demand with maximum COP. On the other hand, dissipative contributions competition in the heat exchangers results in two distinct optimal designs, depending on the thermal power density. Taking into account manufacturing constraints, realistic system design is derived and discussed. Although the entropy generation in the heat exchangers is low compared to that in the thermoelectric module (dominated by Joule effect), the heat exchanger design highly impacts the global system performance.

Year 2016, Volume: 19 Issue: 2, 82 - 90, 25.05.2016
https://doi.org/10.5541/ijot.5000153630

Abstract

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Details

Journal Section Regular Original Research Article
Authors

Julien Ramousse

Publication Date May 25, 2016
Published in Issue Year 2016 Volume: 19 Issue: 2

Cite

APA Ramousse, J. (2016). Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations. International Journal of Thermodynamics, 19(2), 82-90. https://doi.org/10.5541/ijot.5000153630
AMA Ramousse J. Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations. International Journal of Thermodynamics. May 2016;19(2):82-90. doi:10.5541/ijot.5000153630
Chicago Ramousse, Julien. “Entropy Analysis of Thermoelectric Heat Pumps Including Multi-Channel Heat Exchangers: Design Considerations”. International Journal of Thermodynamics 19, no. 2 (May 2016): 82-90. https://doi.org/10.5541/ijot.5000153630.
EndNote Ramousse J (May 1, 2016) Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations. International Journal of Thermodynamics 19 2 82–90.
IEEE J. Ramousse, “Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations”, International Journal of Thermodynamics, vol. 19, no. 2, pp. 82–90, 2016, doi: 10.5541/ijot.5000153630.
ISNAD Ramousse, Julien. “Entropy Analysis of Thermoelectric Heat Pumps Including Multi-Channel Heat Exchangers: Design Considerations”. International Journal of Thermodynamics 19/2 (May 2016), 82-90. https://doi.org/10.5541/ijot.5000153630.
JAMA Ramousse J. Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations. International Journal of Thermodynamics. 2016;19:82–90.
MLA Ramousse, Julien. “Entropy Analysis of Thermoelectric Heat Pumps Including Multi-Channel Heat Exchangers: Design Considerations”. International Journal of Thermodynamics, vol. 19, no. 2, 2016, pp. 82-90, doi:10.5541/ijot.5000153630.
Vancouver Ramousse J. Entropy analysis of thermoelectric heat pumps including multi-channel heat exchangers: design considerations. International Journal of Thermodynamics. 2016;19(2):82-90.