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Empirical Analysis for the Heat Exchange Effectiveness of a Thermoelectric Liquid Cooling and Heating Unit

Author

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  • Hansol Lim

    (Department of Architectural Engineering, College of Engineering, Hanyang University, 222 Wangsimni-Ro, Seongdong-Gu, Seoul 04763, Korea)

  • Seong-Yong Cheon

    (Department of Architectural Engineering, College of Engineering, Hanyang University, 222 Wangsimni-Ro, Seongdong-Gu, Seoul 04763, Korea)

  • Jae-Weon Jeong

    (Department of Architectural Engineering, College of Engineering, Hanyang University, 222 Wangsimni-Ro, Seongdong-Gu, Seoul 04763, Korea)

Abstract

This study aims to estimate the performance of thermoelectric module (TEM) heat pump for simultaneous liquid cooling and heating and propose empirical models for predicting the heat exchange effectiveness. The experiments were conducted to investigate and collect the performance data of TEM heat pump where the working fluid was water. A total of 57 sets of experimental data were statistically analyzed to estimate the effects of each independent variable on the heat exchange effectiveness using analysis of variance (ANOVA). To develop the empirical model, the six design parameters were measured: the number of transfer units ( NTU ) of the heat exchangers (i.e., water blocks), the inlet water temperatures and temperatures of water blocks at the cold and hot sides of the TEM. As a result, two polynomial equations predicting heat exchange effectiveness at the cold and hot sides of the TEM heat pump were derived as a function of the six selected design parameters. Also, the proposed models and theoretical model of conventional condenser and evaporator for heat exchange effectiveness were compared with the additional measurement data to validate the reliability of the proposed models. Consequently, two conclusions have been made: (1) the possibility of using the TEM heat pump for simultaneous cooling and heating was examined with the maximum temperature difference of 30 °C between cold and hot side of TEM, and (2) it is revealed that TEM heat pump has difference with the conventional evaporator and condenser from the comparison results between the proposed models and theoretical model due to the heat conduction and Joule effect in TEM.

Suggested Citation

  • Hansol Lim & Seong-Yong Cheon & Jae-Weon Jeong, 2018. "Empirical Analysis for the Heat Exchange Effectiveness of a Thermoelectric Liquid Cooling and Heating Unit," Energies, MDPI, vol. 11(3), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:580-:d:135170
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    References listed on IDEAS

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    3. Irshad, Kashif & Habib, Khairul & Basrawi, Firdaus & Saha, Bidyut Baran, 2017. "Study of a thermoelectric air duct system assisted by photovoltaic wall for space cooling in tropical climate," Energy, Elsevier, vol. 119(C), pages 504-522.
    4. Hermes, Christian J.L. & Barbosa, Jader R., 2012. "Thermodynamic comparison of Peltier, Stirling, and vapor compression portable coolers," Applied Energy, Elsevier, vol. 91(1), pages 51-58.
    5. Jang-Hoon Shin & Joon-Young Park & Min-Suk Jo & Jae-Weon Jeong, 2018. "Impact of Heat Pump-Driven Liquid Desiccant Dehumidification on the Energy Performance of an Evaporative Cooling-Assisted Air Conditioning System," Energies, MDPI, vol. 11(2), pages 1-21, February.
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    Cited by:

    1. Zhou, Yuanyuan & Zhang, Tao & Wang, Fang & Yu, Yanshun, 2018. "Performance analysis of a novel thermoelectric assisted indirect evaporative cooling system," Energy, Elsevier, vol. 162(C), pages 299-308.
    2. Kang, Yong-Kwon & Joung, Jaewon & Kim, Minseong & Jeong, Jae-Weon, 2023. "Energy impact of heat pipe-assisted microencapsulated phase change material heat sink for photovoltaic and thermoelectric generator hybrid panel," Renewable Energy, Elsevier, vol. 207(C), pages 298-308.

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