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Performance analysis of ground water-source heat pump system with improved control strategies for building retrofit

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  • Zhu, Na
  • Hu, Pingfang
  • Wang, Wei
  • Yu, Jianming
  • Lei, Fei

Abstract

This paper presented a case study on performance analysis of ground water-source heat pump system (GWHP) for a hotel building retrofit. Splitting air-conditioner was used for cooling and coal fired boiler was used for heating in original system. The GWHP system could save electricity energy and water source consumption under improved operation methods compared with the common operation methods. In this study, the experimental average cooling coefficient of performance (COP) of the units and system were 5.53 and 3.29, respectively (from Jun. to Sep.). The average heating COP of the units and system were 4.45 and 2.79, respectively (from Nov. to Feb.). The primary energy consumption of GWHP system was reduced by 42.9% when compare with the original cooling/heating system in a year. The indoor air temperature fluctuated in comfortable range (19.3°C–24.4 °C) during test day in winter. The results show that the GWHP system was particularly suitable for this hotel under our improved operation methods. This renewable and environment-friendly technology could promote energy conservation and sustainability obviously for the hotel building.

Suggested Citation

  • Zhu, Na & Hu, Pingfang & Wang, Wei & Yu, Jianming & Lei, Fei, 2015. "Performance analysis of ground water-source heat pump system with improved control strategies for building retrofit," Renewable Energy, Elsevier, vol. 80(C), pages 324-330.
    • Handle: RePEc:eee:renene:v:80:y:2015:i:c:p:324-330
    DOI: 10.1016/j.renene.2015.02.021
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    References listed on IDEAS

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    2. Wu, Qiang & Tu, Kun & Sun, Haizhou & Chen, Chaofan, 2019. "Investigation on the sustainability and efficiency of single-well circulation (SWC) groundwater heat pump systems," Renewable Energy, Elsevier, vol. 130(C), pages 656-666.
    3. Sivasakthivel, T. & Murugesan, K. & Sahoo, P.K., 2015. "Study of technical, economical and environmental viability of ground source heat pump system for Himalayan cities of India," Renewable and Sustainable Energy Reviews, Elsevier, vol. 48(C), pages 452-462.
    4. Zhang, Jing & Zhang, Hong-Hu & He, Ya-Ling & Tao, Wen-Quan, 2016. "A comprehensive review on advances and applications of industrial heat pumps based on the practices in China," Applied Energy, Elsevier, vol. 178(C), pages 800-825.
    5. Zhang, Shuyang & Zhang, Lun & Zhang, Xiaosong, 2022. "Clustering based on dynamic time warping to extract typical daily patterns from long-term operation data of a ground source heat pump system," Energy, Elsevier, vol. 249(C).
    6. Halilovic, Smajil & Odersky, Leonhard & Hamacher, Thomas, 2022. "Integration of groundwater heat pumps into energy system optimization models," Energy, Elsevier, vol. 238(PA).
    7. Kwon Sook Park & Seiyong Kim, 2018. "Utilising Unused Energy Resources for Sustainable Heating and Cooling System in Buildings: A Case Study of Geothermal Energy and Water Sources in a University," Energies, MDPI, vol. 11(7), pages 1-8, July.
    8. García-Céspedes, J. & Arnó, G. & Herms, I. & de Felipe, J.J., 2020. "Characterisation of efficiency losses in ground source heat pump systems equipped with a double parallel stage: A case study," Renewable Energy, Elsevier, vol. 147(P2), pages 2761-2773.
    9. Wang, Dan-Yi & Wang, Xueqing & Ding, Ru-Xi, 2022. "Welfare maximization with the least subsidy: Pricing model for surface water loop heat pump PPP projects considering occupancy rate growth and coefficient of performance," Renewable Energy, Elsevier, vol. 194(C), pages 1131-1141.

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