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Optimum design of horizontal ground-coupled heat pump systems using spiral-coil-loop heat exchangers

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  • Go, Gyu-Hyun
  • Lee, Seung-Rae
  • Yoon, Seok
  • Kim, Min-Jun

Abstract

This paper deals with an optimum design of horizontal ground heat pump systems for spiral-coil-loop heat exchangers. A three dimensional numerical analysis model simulating the thermal behavior of a horizontal spiral-coil-loop heat exchanger was developed, and the accuracy of the model was verified through indoor thermal response tests. After that, a total of 160 parametric studies were conducted using numerical simulation models in order to grasp the degree of effects that key input parameters used in the model would have on the output. Then, an optimum design condition for horizontal ground coupled heat pump system was suggested using several economic analysis tools. Economic analysis factors, such as internal rate of return, savings to investment ratio, and simple payback period, show that certain design conditions (coil pitch: 0.08m, setting depth: 2.5m, circulating fluid velocity: 0.7ms−1) provide the most economic feasibility. However, this condition also varies with the unit cost of operation and initial investment.

Suggested Citation

  • Go, Gyu-Hyun & Lee, Seung-Rae & Yoon, Seok & Kim, Min-Jun, 2016. "Optimum design of horizontal ground-coupled heat pump systems using spiral-coil-loop heat exchangers," Applied Energy, Elsevier, vol. 162(C), pages 330-345.
    • Handle: RePEc:eee:appene:v:162:y:2016:i:c:p:330-345
    DOI: 10.1016/j.apenergy.2015.10.113
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    References listed on IDEAS

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    Cited by:

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    3. Hou, Gaoyang & Taherian, Hessam & Song, Ying & Jiang, Wei & Chen, Diyi, 2022. "A systematic review on optimal analysis of horizontal heat exchangers in ground source heat pump systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 154(C).
    4. Yang, Weibo & Xu, Rui & Wang, Feng & Chen, Shikun, 2020. "Experimental and numerical investigations on the thermal performance of a horizontal spiral-coil ground heat exchanger," Renewable Energy, Elsevier, vol. 147(P1), pages 979-995.
    5. Yu Zhou & Asal Bidarmaghz & Nikolas Makasis & Guillermo Narsilio, 2021. "Ground-Source Heat Pump Systems: The Effects of Variable Trench Separations and Pipe Configurations in Horizontal Ground Heat Exchangers," Energies, MDPI, vol. 14(13), pages 1-15, June.
    6. Naili, Nabiha & Kooli, Sami, 2021. "Solar-assisted ground source heat pump system operated in heating mode: A case study in Tunisia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 145(C).
    7. Tang, Fujiao & Nowamooz, Hossein, 2020. "Outlet temperatures of a slinky-type Horizontal Ground Heat Exchanger with the atmosphere-soil interaction," Renewable Energy, Elsevier, vol. 146(C), pages 705-718.
    8. Soni, Suresh Kumar & Pandey, Mukesh & Bartaria, Vishvendra Nath, 2016. "Hybrid ground coupled heat exchanger systems for space heating/cooling applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 724-738.
    9. Seunghui Lee & Sungwon Jung & Jaewook Lee, 2019. "Prediction Model Based on an Artificial Neural Network for User-Based Building Energy Consumption in South Korea," Energies, MDPI, vol. 12(4), pages 1-18, February.
    10. Sun, Jinxiang & Zhang, Ruibo & Wang, Mingjun & Zhang, Jing & Qiu, Suizheng & Tian, Wenxi & Su, G.H., 2022. "Multi-objective optimization of helical coil steam generator in high temperature gas reactors with genetic algorithm and response surface method," Energy, Elsevier, vol. 259(C).
    11. Chengbin Zhang & Weibo Yang & Jingjing Yang & Suchen Wu & Yongping Chen, 2017. "Experimental Investigations and Numerical Simulation of Thermal Performance of a Horizontal Slinky-Coil Ground Heat Exchanger," Sustainability, MDPI, vol. 9(8), pages 1-22, August.
    12. Mihalakakou, Giouli & Souliotis, Manolis & Papadaki, Maria & Halkos, George & Paravantis, John & Makridis, Sofoklis & Papaefthimiou, Spiros, 2022. "Applications of earth-to-air heat exchangers: A holistic review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    13. Krzysztof Neupauer & Sebastian Pater & Krzysztof Kupiec, 2018. "Study of Ground Heat Exchangers in the Form of Parallel Horizontal Pipes Embedded in the Ground," Energies, MDPI, vol. 11(3), pages 1-16, February.
    14. Ľubomíra Gabániová & Dušan Kudelas & Martin Prčík, 2021. "Modelling Ground Collectors and Determination of the Influence of Technical Parameters, Installation and Geometry on the Soil," Energies, MDPI, vol. 14(21), pages 1-21, November.
    15. 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.

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