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Thermoelectric Generator with Passive Biphasic Thermosyphon Heat Exchanger for Waste Heat Recovery: Design and Experimentation

Author

Listed:
  • Miguel Araiz

    (Department of Engineering, Smart Cities Institute, Campus Arrosadía, Public University of Navarre, 31006 Pamplona, Spain)

  • Álvaro Casi

    (Department of Engineering, Smart Cities Institute, Campus Arrosadía, Public University of Navarre, 31006 Pamplona, Spain)

  • Leyre Catalán

    (Department of Engineering, Smart Cities Institute, Campus Arrosadía, Public University of Navarre, 31006 Pamplona, Spain)

  • Patricia Aranguren

    (Department of Engineering, Smart Cities Institute, Campus Arrosadía, Public University of Navarre, 31006 Pamplona, Spain)

  • David Astrain

    (Department of Engineering, Smart Cities Institute, Campus Arrosadía, Public University of Navarre, 31006 Pamplona, Spain)

Abstract

One of the measures to fight against the current energy situation and reduce the energy consumption at an industrial process is to recover waste heat and transform it into electric power. Thermoelectric generators can be used for that purpose but there is a lack of experimental studies that can bring this technology closer to reality. This work presents the design, optimizations and development of two devices that are experimented and compared under the same working conditions. The hot side heat exchanger of both generators has been designed using a computational fluid dynamics software and for the cold side of the generators two technologies have been analysed: a finned dissipater that uses a fan and free convection biphasic thermosyphon. The results obtained show a maximum net generation of 6.9 W in the thermoelectric generator with the finned dissipater; and 10.6 W of power output in the generator with the biphasic thermosyphon. These results remark the importance of a proper design of the heat exchangers, trying to get low thermal resistances at both sides of the thermoelectric modules, as well as, the necessity of considering the auxiliary consumption of the equipment employed.

Suggested Citation

  • Miguel Araiz & Álvaro Casi & Leyre Catalán & Patricia Aranguren & David Astrain, 2021. "Thermoelectric Generator with Passive Biphasic Thermosyphon Heat Exchanger for Waste Heat Recovery: Design and Experimentation," Energies, MDPI, vol. 14(18), pages 1-19, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5815-:d:635384
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    References listed on IDEAS

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    5. Young-Min Kim & Assmelash Negash & Syed Safeer Mehdi Shamsi & Dong-Gil Shin & Gyubaek Cho, 2021. "Experimental Study of a Lab-Scale Organic Rankine Cycle System for Heat and Water Recovery from Flue Gas in Thermal Power Plants," Energies, MDPI, vol. 14(14), pages 1-13, July.
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    Cited by:

    1. Tayfun Uyanık & Emir Ejder & Yasin Arslanoğlu & Yunus Yalman & Yacine Terriche & Chun-Lien Su & Josep M. Guerrero, 2022. "Thermoelectric Generators as an Alternative Energy Source in Shipboard Microgrids," Energies, MDPI, vol. 15(12), pages 1-14, June.
    2. Irene Cappelli & Stefano Parrino & Alessandro Pozzebon & Alessio Salta, 2021. "Providing Energy Self-Sufficiency to LoRaWAN Nodes by Means of Thermoelectric Generators (TEGs)-Based Energy Harvesting," Energies, MDPI, vol. 14(21), pages 1-17, November.

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