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Design and performance study of the ground-coupled heat pump system with an operating parameter

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  • Chung, Jin Taek
  • Choi, Jong Min

Abstract

In the present study, the performance of a heat pump unit is measured by varying the secondary fluid flow rate and compressor speed. Test results are applied to design the GCHP system, and then the effects of the flow rate and the thermal conductivity on the performance of the system and the size of GLHX are analyzed. For all compressor speed and operating modes, the COP of the heat pump unit with an increment of flow rate is enhanced, while the increasing rate of that decrease. For low flow rate conditions, the unit COP and the system COP according to the flow rate increase due to a rise of heating and cooling capacity and a drop of power consumption. When the flow rate increases under high flow rate conditions, heat pump unit COP is slightly enhanced in the heating and cooling modes. However, the variation of the system COP in the cooling mode is negligible and that in the heating mode decreases even though the flow rate increases. The GLHX length increases with the increase of the flow rate, while it decreases with an increment of the thermal conductivity. As the thermal conductivity decreases, the increasing rate of the GLHX length according to the flow rate rises. A higher secondary fluid flow rate can increase the performance of the heat pump unit, while it makes the length of the GLHX longer. As a result, it is suggested that the flow rate of the heat pump unit have to be checked to optimize the system, and consequently, the system COP and the flow rate should be considered as the important design parameters in order to reduce the installation cost and save energy in the GCHP system.

Suggested Citation

  • Chung, Jin Taek & Choi, Jong Min, 2012. "Design and performance study of the ground-coupled heat pump system with an operating parameter," Renewable Energy, Elsevier, vol. 42(C), pages 118-124.
    • Handle: RePEc:eee:renene:v:42:y:2012:i:c:p:118-124
    DOI: 10.1016/j.renene.2011.08.054
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    References listed on IDEAS

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    1. Hwang, Suckho & Ooka, Ryozo & Nam, Yujin, 2010. "Evaluation of estimation method of ground properties for the ground source heat pump system," Renewable Energy, Elsevier, vol. 35(9), pages 2123-2130.
    2. Mustafa Omer, Abdeen, 2008. "Ground-source heat pumps systems and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(2), pages 344-371, February.
    3. Hwang, Yujin & Lee, Jae-Keun & Jeong, Young-Man & Koo, Kyung-Min & Lee, Dong-Hyuk & Kim, In-Kyu & Jin, Sim-Won & Kim, Soo H., 2009. "Cooling performance of a vertical ground-coupled heat pump system installed in a school building," Renewable Energy, Elsevier, vol. 34(3), pages 578-582.
    4. Richard J. Green and Michael G. Pollitt, 2008. "Introduction," The Energy Journal, International Association for Energy Economics, vol. 0(Special I), pages 1-2.
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    Citations

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    Cited by:

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    2. Han, Chanjuan & Yu, Xiong (Bill), 2016. "Sensitivity analysis of a vertical geothermal heat pump system," Applied Energy, Elsevier, vol. 170(C), pages 148-160.
    3. Girard, Aymeric & Gago, Eulalia Jadraque & Muneer, Tariq & Caceres, Gustavo, 2015. "Higher ground source heat pump COP in a residential building through the use of solar thermal collectors," Renewable Energy, Elsevier, vol. 80(C), pages 26-39.
    4. Han, Chanjuan & Yu, Xiong (Bill), 2016. "Performance of a residential ground source heat pump system in sedimentary rock formation," Applied Energy, Elsevier, vol. 164(C), pages 89-98.
    5. Casasso, Alessandro & Sethi, Rajandrea, 2014. "Efficiency of closed loop geothermal heat pumps: A sensitivity analysis," Renewable Energy, Elsevier, vol. 62(C), pages 737-746.
    6. Zhu, Lin & Yu, Jianlin & Zhou, Mengliu & Wang, Xiao, 2014. "Performance analysis of a novel dual-nozzle ejector enhanced cycle for solar assisted air-source heat pump systems," Renewable Energy, Elsevier, vol. 63(C), pages 735-740.
    7. Michopoulos, A. & Zachariadis, T. & Kyriakis, N., 2013. "Operation characteristics and experience of a ground source heat pump system with a vertical ground heat exchanger," Energy, Elsevier, vol. 51(C), pages 349-357.
    8. Kwon, Ohkyung & Bae, KyungJin & Park, Chasik, 2014. "Cooling characteristics of ground source heat pump with heat exchange methods," Renewable Energy, Elsevier, vol. 71(C), pages 651-657.
    9. Cho, Honghyun & Choi, Jong Min, 2014. "The quantitative evaluation of design parameter's effects on a ground source heat pump system," Renewable Energy, Elsevier, vol. 65(C), pages 2-6.
    10. Bruno Piga & Alessandro Casasso & Francesca Pace & Alberto Godio & Rajandrea Sethi, 2017. "Thermal Impact Assessment of Groundwater Heat Pumps (GWHPs): Rigorous vs. Simplified Models," Energies, MDPI, vol. 10(9), pages 1-19, September.
    11. Casasso, Alessandro & Sethi, Rajandrea, 2016. "G.POT: A quantitative method for the assessment and mapping of the shallow geothermal potential," Energy, Elsevier, vol. 106(C), pages 765-773.

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