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Performance Analysis of Slinky Horizontal Ground Heat Exchangers for a Ground Source Heat Pump System

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  • Md. Hasan Ali

    (Graduate School of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
    Department of Energy Science and Engineering, Khulna University of Engineering & Technology, Khulna 9203, Bangladesh)

  • Keishi Kariya

    (Department of Mechanical Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan)

  • Akio Miyara

    (Department of Mechanical Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
    International Institute for Carbon-Neutral Energy Research, Kyushu University, Fukuoka-shi 819-0395, Japan)

Abstract

This paper highlights the thermal performance of reclined (parallel to ground surface) and standing (perpendicular to ground surface) slinky horizontal ground heat exchangers (HGHEs) with different water mass flow rates in the heating mode of continuous and intermittent operations. A copper tube with an outer surface protected with low-density polyethylene was selected as the tube material of the ground heat exchanger. Effects on ground temperature around the reclined slinky HGHE due to heat extraction and the effect of variation of ground temperatures on reclined HGHE performance are discussed. A higher heat exchange rate was experienced in standing HGHE than in reclined HGHE. The standing HGHE was affected by deeper ground temperature and also a greater amount of backfilled sand in standing HGHE (4.20 m 3 ) than reclined HGHE (1.58 m 3 ), which has higher thermal conductivity than site soil. For mass flow rate of 1 L/min with inlet water temperature 7 °C, the 4-day average heat extraction rates increased 45.3% and 127.3%, respectively, when the initial average ground temperatures at 1.5 m depth around reclined HGHE increased from 10.4 °C to 11.7 °C and 10.4 °C to 13.7 °C. In the case of intermittent operation, which boosted the thermal performance, a short time interval of intermittent operation is better than a long time interval of intermittent operation. Furthermore, from the viewpoint of power consumption by the circulating pump, the intermittent operation is more efficient than continuous operation.

Suggested Citation

  • Md. Hasan Ali & Keishi Kariya & Akio Miyara, 2017. "Performance Analysis of Slinky Horizontal Ground Heat Exchangers for a Ground Source Heat Pump System," Resources, MDPI, vol. 6(4), pages 1-18, October.
    • Handle: RePEc:gam:jresou:v:6:y:2017:i:4:p:56-:d:114855
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    References listed on IDEAS

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    1. Tarnawski, V.R. & Leong, W.H. & Momose, T. & Hamada, Y., 2009. "Analysis of ground source heat pumps with horizontal ground heat exchangers for northern Japan," Renewable Energy, Elsevier, vol. 34(1), pages 127-134.
    2. Yupeng Wu & Guohui Gan & Raquel Garcia Gonzalez & Anne Verhoef & Pier Luigi Vidale, 2011. "Prediction of the thermal performance of horizontal-coupled ground-source heat exchangers," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 6(4), pages 261-269, June.
    3. Florides, Georgios & Kalogirou, Soteris, 2007. "Ground heat exchangers—A review of systems, models and applications," Renewable Energy, Elsevier, vol. 32(15), pages 2461-2478.
    4. Florides, G. & Theofanous, E. & Iosif-Stylianou, I. & Tassou, S. & Christodoulides, P. & Zomeni, Z. & Tsiolakis, E. & Kalogirou, S. & Messaritis, V. & Pouloupatis, P. & Panayiotou, G., 2013. "Modeling and assessment of the efficiency of horizontal and vertical ground heat exchangers," Energy, Elsevier, vol. 58(C), pages 655-663.
    5. Selamat, Salsuwanda & Miyara, Akio & Kariya, Keishi, 2016. "Numerical study of horizontal ground heat exchangers for design optimization," Renewable Energy, Elsevier, vol. 95(C), pages 561-573.
    6. Xiong, Zeyu & Fisher, Daniel E. & Spitler, Jeffrey D., 2015. "Development and validation of a Slinky™ ground heat exchanger model," Applied Energy, Elsevier, vol. 141(C), pages 57-69.
    7. Naili, Nabiha & Hazami, Majdi & Attar, Issam & Farhat, Abdelhamid, 2013. "In-field performance analysis of ground source cooling system with horizontal ground heat exchanger in Tunisia," Energy, Elsevier, vol. 61(C), pages 319-331.
    8. Chong, Chiew Shan Anthony & Gan, Guohui & Verhoef, Anne & Garcia, Raquel Gonzalez & Vidale, Pier Luigi, 2013. "Simulation of thermal performance of horizontal slinky-loop heat exchangers for ground source heat pumps," Applied Energy, Elsevier, vol. 104(C), pages 603-610.
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    Cited by:

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