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A Study on the Efficiency Improvement of Multi-Geothermal Heat Pump Systems in Korea Using Coefficient of Performance

Author

Listed:
  • Young-Ju Jung

    (Green Building Center, Korea Productivity Center Quality Assurance, 32 Saemoonan 5th street, Jongno-gu, Seoul 03170, Korea)

  • Hyo-Jun Kim

    (Department of Architectural Engineering, Graduate School of Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea)

  • Bo-Eun Choi

    (Department of Architectural Engineering, Graduate School of Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea)

  • Jae-Hun Jo

    (Department of Architectural Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Korea)

  • Young-Hum Cho

    (School of Architecture, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea)

Abstract

The Korean government is fostering a renewable energy industry as a means of handling the energy crisis. Among the renewable energy systems available, geothermal energy has been highlighted as highly efficient, safely operable and relatively unaffected by outdoors air conditions. Despite the increasing use of renewable energy, the devices using renewables may not be operating appropriately. This study examined current problems in the operation of a geothermal heat pump (GHP) system. The efficiency of a geothermal heat pump system to studied to maximize the operation plan. Our study modelled the target building and analyzed the energy using TRNSYS, which is a dynamic energy simulation tool, to apply the coefficient of performance (COP) and evaluate the operation method. As a result, the GHP total energy consumption from the COP control method was reduced by 46% compared to the current operation. The proposed control method was evaluated after applying the system to a building. The results showed that efficient operation of a geothermal heat pump system is possible.

Suggested Citation

  • Young-Ju Jung & Hyo-Jun Kim & Bo-Eun Choi & Jae-Hun Jo & Young-Hum Cho, 2016. "A Study on the Efficiency Improvement of Multi-Geothermal Heat Pump Systems in Korea Using Coefficient of Performance," Energies, MDPI, vol. 9(5), pages 1-19, May.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:5:p:356-:d:69929
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    References listed on IDEAS

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    Cited by:

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    3. Jeong Soo Shin & Jong Woo Park & Sean Hay Kim, 2020. "Measurement and Verification of Integrated Ground Source Heat Pumps on a Shared Ground Loop," Energies, MDPI, vol. 13(7), pages 1-24, April.
    4. Peng Li & Peng Guan & Jun Zheng & Bin Dou & Hong Tian & Xinsheng Duan & Hejuan Liu, 2020. "Field Test and Numerical Simulation on Heat Transfer Performance of Coaxial Borehole Heat Exchanger," Energies, MDPI, vol. 13(20), pages 1-19, October.
    5. Aminhossein Jahanbin & Claudia Naldi & Enzo Zanchini, 2020. "Relation Between Mean Fluid Temperature and Outlet Temperature for Single U-Tube Boreholes," Energies, MDPI, vol. 13(4), pages 1-23, February.
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    7. Aminhossein Jahanbin & Giovanni Semprini & Andrea Natale Impiombato & Cesare Biserni & Eugenia Rossi di Schio, 2020. "Effects of the Circuit Arrangement on the Thermal Performance of Double U-Tube Ground Heat Exchangers," Energies, MDPI, vol. 13(12), pages 1-19, June.

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