IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2020i1p31-d467033.html
   My bibliography  Save this article

The Effect of Coupling Solar Thermal System and Geothermal Heat Pump Systems in Areas with Unbalanced Heating and Cooling Demand

Author

Listed:
  • Jihyun Hwang

    (Department of Construction Environmental System Engineering, Sungkyunkwan University, Suwon 16419, Korea
    Department of Fire Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea)

  • Doosam Song

    (School of Civil, Architectural Engineering, and Landscape Architecture, Sungkyunkwan University, Suwon 16419, Korea)

  • Taewon Lee

    (Department of Fire Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea)

Abstract

Geothermal source heat pump (GSHP) systems as renewable energy systems are being more frequently installed as part of the zero-energy building drive. However, in South Korea, where a large amount of heating load can be required, maintaining high system performance by using only a GSHP is difficult owing to the gradual degradation of its thermal performance. The performance of a solar-assisted GSHP system was therefore experimentally analyzed and compared with a GSHP-only system. The results showed that the heating coefficient of performance of the GSHP-only operation was 5.4, while that of the solar-assisted GSHP operation was 7.0. In the case of the GSHP-only system, the maximum temperature of the heat pump water supply on the heat source side was initially 13.1 °C, but this rapidly decreased to 11.4 °C during operation. For the solar-assisted GSHP system, the temperature of the water supply to the heat source side of the heat pump was controlled at 15–20.9 °C, and the power consumption for system operation was reduced by about 20% compared with that for the GSHP-only system. Much higher temperatures could be supplied when solar heat is used instead of ground heat, as solar heat contributes to the performance improvement of the heat pump system.

Suggested Citation

  • Jihyun Hwang & Doosam Song & Taewon Lee, 2020. "The Effect of Coupling Solar Thermal System and Geothermal Heat Pump Systems in Areas with Unbalanced Heating and Cooling Demand," Energies, MDPI, vol. 14(1), pages 1-15, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:31-:d:467033
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/1/31/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/1/31/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Lohani, S.P. & Schmidt, D., 2010. "Comparison of energy and exergy analysis of fossil plant, ground and air source heat pump building heating system," Renewable Energy, Elsevier, vol. 35(6), pages 1275-1282.
    2. Retkowski, Waldemar & Ziefle, Gesa & Thöming, Jorg, 2015. "Evaluation of different heat extraction strategies for shallow vertical ground-source heat pump systems," Applied Energy, Elsevier, vol. 149(C), pages 259-271.
    3. Park, Honghee & Lee, Joo Seoung & Kim, Wonuk & Kim, Yongchan, 2013. "The cooling seasonal performance factor of a hybrid ground-source heat pump with parallel and serial configurations," Applied Energy, Elsevier, vol. 102(C), pages 877-884.
    4. Shang, Yan & Dong, Ming & Li, Sufen, 2014. "Intermittent experimental study of a vertical ground source heat pump system," Applied Energy, Elsevier, vol. 136(C), pages 628-635.
    5. Liu, Zhijian & Xu, Wei & Qian, Cheng & Chen, Xi & Jin, Guangya, 2015. "Investigation on the feasibility and performance of ground source heat pump (GSHP) in three cities in cold climate zone, China," Renewable Energy, Elsevier, vol. 84(C), pages 89-96.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. You, Tian & Wu, Wei & Shi, Wenxing & Wang, Baolong & Li, Xianting, 2016. "An overview of the problems and solutions of soil thermal imbalance of ground-coupled heat pumps in cold regions," Applied Energy, Elsevier, vol. 177(C), pages 515-536.
    2. Pandey, Navdeep & Murugesan, K. & Thomas, H.R., 2017. "Optimization of ground heat exchangers for space heating and cooling applications using Taguchi method and utility concept," Applied Energy, Elsevier, vol. 190(C), pages 421-438.
    3. Liu, Zhijian & Li, Yuanwei & Xu, Wei & Yin, Hang & Gao, Jun & Jin, Guangya & Lun, Liyong & Jin, Guohui, 2019. "Performance and feasibility study of hybrid ground source heat pump system assisted with cooling tower for one office building based on one Shanghai case," Energy, Elsevier, vol. 173(C), pages 28-37.
    4. Zhou, Zhihua & Wu, Shengwei & Du, Tao & Chen, Guanyi & Zhang, Zhiming & Zuo, Jian & He, Qing, 2016. "The energy-saving effects of ground-coupled heat pump system integrated with borehole free cooling: A study in China," Applied Energy, Elsevier, vol. 182(C), pages 9-19.
    5. Kuzmic, Nikola & Law, Ying Lam E. & Dworkin, Seth B., 2016. "Numerical heat transfer comparison study of hybrid and non-hybrid ground source heat pump systems," Applied Energy, Elsevier, vol. 165(C), pages 919-929.
    6. Lee, Joo Seong & Song, Kang Sub & Ahn, Jae Hwan & Kim, Yongchan, 2015. "Comparison on the transient cooling performances of hybrid ground-source heat pumps with various flow loop configurations," Energy, Elsevier, vol. 82(C), pages 678-685.
    7. Zhang, Changxing & Song, Wei & Liu, Yufeng & Kong, Xiangqiang & Wang, Qing, 2019. "Effect of vertical ground temperature distribution on parameter estimation of in-situ thermal response test with unstable heat rate," Renewable Energy, Elsevier, vol. 136(C), pages 264-274.
    8. Bojić, Milorad & Cvetković, Dragan & Bojić, Ljubiša, 2015. "Decreasing energy use and influence to environment by radiant panel heating using different energy sources," Applied Energy, Elsevier, vol. 138(C), pages 404-413.
    9. Ji Li & Yuanwei Liu & Ruixue Zhang & Zhijian Liu & Wei Xu & Biao Qiao & Xiaomei Feng, 2018. "Load Distribution of Semi-Central Evaporative Cooling Air-Conditioning System Based on the TRNSYS Platform," Energies, MDPI, vol. 11(5), pages 1-15, May.
    10. Stanek, Wojciech & Simla, Tomasz & Gazda, Wiesław, 2019. "Exergetic and thermo-ecological assessment of heat pump supported by electricity from renewable sources," Renewable Energy, Elsevier, vol. 131(C), pages 404-412.
    11. Nguyen, Hiep V. & Law, Ying Lam E. & Alavy, Masih & Walsh, Philip R. & Leong, Wey H. & Dworkin, Seth B., 2014. "An analysis of the factors affecting hybrid ground-source heat pump installation potential in North America," Applied Energy, Elsevier, vol. 125(C), pages 28-38.
    12. Choi, Wonjun & Kikumoto, Hideki & Choudhary, Ruchi & Ooka, Ryozo, 2018. "Bayesian inference for thermal response test parameter estimation and uncertainty assessment," Applied Energy, Elsevier, vol. 209(C), pages 306-321.
    13. Cruz-Peragón, F. & Gómez-de la Cruz, F.J. & Palomar-Carnicero, J.M. & López-García, R., 2022. "Optimal design of a hybrid ground source heat pump for an official building with thermal load imbalance and limited space for the ground heat exchanger," Renewable Energy, Elsevier, vol. 195(C), pages 381-394.
    14. Gao, Jiajia & Li, Anbang & Xu, Xinhua & Gang, Wenjie & Yan, Tian, 2018. "Ground heat exchangers: Applications, technology integration and potentials for zero energy buildings," Renewable Energy, Elsevier, vol. 128(PA), pages 337-349.
    15. Choi, Wonjun & Menberg, Kathrin & Kikumoto, Hideki & Heo, Yeonsook & Choudhary, Ruchi & Ooka, Ryozo, 2018. "Bayesian inference of structural error in inverse models of thermal response tests," Applied Energy, Elsevier, vol. 228(C), pages 1473-1485.
    16. Somogyi, Viola & Sebestyén, Viktor & Nagy, Georgina, 2017. "Scientific achievements and regulation of shallow geothermal systems in six European countries – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 68(P2), pages 934-952.
    17. Gang, Wenjie & Wang, Jinbo & Wang, Shengwei, 2014. "Performance analysis of hybrid ground source heat pump systems based on ANN predictive control," Applied Energy, Elsevier, vol. 136(C), pages 1138-1144.
    18. Kou, Xiaoxue & Wang, Ruzhu, 2023. "Thermodynamic analysis of electric to thermal heating pathways coupled with thermal energy storage," Energy, Elsevier, vol. 284(C).
    19. Yuan, Shengxi & Stainsby, Wendell & Li, Mo & Xu, Kewei & Waite, Michael & Zimmerle, Dan & Feiock, Richard & Ramaswami, Anu & Modi, Vijay, 2019. "Future energy scenarios with distributed technology options for residential city blocks in three climate regions of the United States," Applied Energy, Elsevier, vol. 237(C), pages 60-69.
    20. Liu, Zhijian & Liu, Yuanwei & He, Bao-Jie & Xu, Wei & Jin, Guangya & Zhang, Xutao, 2019. "Application and suitability analysis of the key technologies in nearly zero energy buildings in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 101(C), pages 329-345.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:31-:d:467033. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.