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A Study on the Operational Condition of a Ground Source Heat Pump in Bangkok Based on a Field Experiment and Simulation

Author

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  • Yutaro Shimada

    (Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama-shi, Kanagawa 226-8503, Japan)

  • Youhei Uchida

    (Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9 Machiikedai, Koriyama-shi, Fukushima 963-0298, Japan)

  • Isao Takashima

    (The Mining Museum, Graduate School of Engineering and Resource Science, Akita University, 1-1 Tegatagakuen-machi, Akita 010-8502, Japan)

  • Srilert Chotpantarat

    (Department of Geology, Faculty of Science, Chulalongkorn University, 254 Phayathai Rd, Pathumwan, Bangkok 10330, Thailand
    Research Program on Controls of Hazardous Contaminants in Raw Water Resources for Water Scarcity Resilience, Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Bangkok 10330, Thailand
    Research Unit of Green Mining (GMM), Chulalongkorn University, Bangkok 10330, Thailand)

  • Arif Widiatmojo

    (Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9 Machiikedai, Koriyama-shi, Fukushima 963-0298, Japan)

  • Sasimook Chokchai

    (Department of Geology, Faculty of Science, Chulalongkorn University, 254 Phayathai Rd, Pathumwan, Bangkok 10330, Thailand)

  • Punya Charusiri

    (Department of Mineral Resources (DMR), King Rama VI Rd, Ratchatewi, Bangkok 10440, Thailand
    MESA Research Unit, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand)

  • Hideaki Kurishima

    (School of Architecture, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan)

  • Koji Tokimatsu

    (Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama-shi, Kanagawa 226-8503, Japan)

Abstract

The deployment of highly efficient cooling equipment is expected to promote energy savings and greenhouse gas emissions reductions in the tropics. A ground source heat pump (GSHP) has high energy-savings potential for use in Bangkok, Thailand. This study aimed to elucidate the operational conditions of a GSHP when used in Bangkok which was expected to achieve a higher efficiency than an air source heat pump (ASHP) over the long term. An operational experiment on a pilot facility in Bangkok and a simulation over a three-year GSHP operation were conducted. As a result of the operational experiment and simulation, the proposed operational condition was that the 90th percentile value of the hourly heat pump (HP) inlet temperature did not exceed 5 °C above that of the hourly annual ambient temperature during the third year of operation. When a GSHP designed based on this condition was utilized for a small government building, the required number of boreholes were 24, 4, and 3 for air-conditioned areas of 200, 40, and 25 m 2 , respectively, which achieved 40% energy savings. Thus, a small-scale GSHP in Bangkok designed based on the proposed condition can achieve high efficiency within space limitations.

Suggested Citation

  • Yutaro Shimada & Youhei Uchida & Isao Takashima & Srilert Chotpantarat & Arif Widiatmojo & Sasimook Chokchai & Punya Charusiri & Hideaki Kurishima & Koji Tokimatsu, 2020. "A Study on the Operational Condition of a Ground Source Heat Pump in Bangkok Based on a Field Experiment and Simulation," Energies, MDPI, vol. 13(1), pages 1-17, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:1:p:274-:d:305565
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    References listed on IDEAS

    as
    1. Arif Widiatmojo & Sasimook Chokchai & Isao Takashima & Yohei Uchida & Kasumi Yasukawa & Srilert Chotpantarat & Punya Charusiri, 2019. "Ground-Source Heat Pumps with Horizontal Heat Exchangers for Space Cooling in the Hot Tropical Climate of Thailand," Energies, MDPI, vol. 12(7), pages 1-22, April.
    2. Safa, Amir A. & Fung, Alan S. & Kumar, Rakesh, 2015. "Heating and cooling performance characterisation of ground source heat pump system by testing and TRNSYS simulation," Renewable Energy, Elsevier, vol. 83(C), pages 565-575.
    3. 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.
    4. Sivak, Michael, 2009. "Potential energy demand for cooling in the 50 largest metropolitan areas of the world: Implications for developing countries," Energy Policy, Elsevier, vol. 37(4), pages 1382-1384, April.
    5. Sasimook Chokchai & Srilert Chotpantarat & Isao Takashima & Youhei Uchida & Arif Widiatmojo & Kasumi Yasukawa & Punya Charusiri, 2018. "A Pilot Study on Geothermal Heat Pump (GHP) Use for Cooling Operations, and on GHP Site Selection in Tropical Regions Based on a Case Study in Thailand," Energies, MDPI, vol. 11(9), pages 1-17, September.
    6. Man, Yi & Yang, Hongxing & Wang, Jinggang, 2010. "Study on hybrid ground-coupled heat pump system for air-conditioning in hot-weather areas like Hong Kong," Applied Energy, Elsevier, vol. 87(9), pages 2826-2833, September.
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    Cited by:

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    2. Rafał Figaj & Maciej Żołądek & Wojciech Goryl, 2020. "Dynamic Simulation and Energy Economic Analysis of a Household Hybrid Ground-Solar-Wind System Using TRNSYS Software," Energies, MDPI, vol. 13(14), pages 1-27, July.
    3. Filip Bartyzel & Tomasz Wegiel & Magdalena Kozień-Woźniak & Marek Czamara, 2022. "Numerical Simulation of Operating Parameters of the Ground Source Heat Pump," Energies, MDPI, vol. 15(1), pages 1-13, January.
    4. Sorranat Ratchawang & Srilert Chotpantarat & Sasimook Chokchai & Isao Takashima & Youhei Uchida & Punya Charusiri, 2022. "A Review of Ground Source Heat Pump Application for Space Cooling in Southeast Asia," Energies, MDPI, vol. 15(14), pages 1-18, July.
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