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Study on the System Design of a Solar Assisted Ground Heat Pump System Using Dynamic Simulation

Author

Listed:
  • Min Gyung Yu

    (Department of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 609-735, Korea)

  • Yujin Nam

    (Department of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 609-735, Korea)

  • Youngdong Yu

    (Research Institute of Industrial Science & Technology, Incheon 406-840, Korea)

  • Janghoo Seo

    (Department of Architecture, Kookmin University, Seoul 501-759, Korea)

Abstract

Recently, the use of hybrid systems using multiple heat sources in buildings to ensure a stable energy supply and improve the system performance has gained attention. Among them, a heat pump system using both solar and ground heat was developed and various system configurations have been introduced. However, establishing a suitable design method for the solar-assisted ground heat pump (SAGHP) system including a thermal storage tank is complicated and there are few quantitative studies on the detailed system configurations. Therefore, this study developed three SAGHP system design methods considering the design factors focused on the thermal storage tank. Using dynamic energy simulation code (TRNSYS 17), individual performance analysis models were developed and long-term quantitative analysis was carried out to suggest optimum design and operation methods. As a result, it was found that SYSTEM 2 which is a hybrid system with heat storage tank for only a solar system showed the highest average heat source temperature of 14.81 °C, which is about 11 °C higher than minimum temperature in SYSTEM 3. Furthermore, the best coefficient of performance (COP) values of heat pump and system were 5.23 and 4.32 in SYSYEM 2, using high and stable solar heat from a thermal storage tank. Moreover, this paper considered five different geographical and climatic locations and the SAGHP system worked efficiently in having high solar radiation and cool climate zones and the system COP was 4.51 in the case of Winnipeg (Canada) where the highest heating demand is required.

Suggested Citation

  • Min Gyung Yu & Yujin Nam & Youngdong Yu & Janghoo Seo, 2016. "Study on the System Design of a Solar Assisted Ground Heat Pump System Using Dynamic Simulation," Energies, MDPI, vol. 9(4), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:4:p:291-:d:68395
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    References listed on IDEAS

    as
    1. Min Gyung Yu & Yujin Nam, 2016. "Feasibility Assessment of Using Power Plant Waste Heat in Large Scale Horticulture Facility Energy Supply Systems," Energies, MDPI, vol. 9(2), pages 1-16, February.
    2. Bakirci, Kadir & Ozyurt, Omer & Comakli, Kemal & Comakli, Omer, 2011. "Energy analysis of a solar-ground source heat pump system with vertical closed-loop for heating applications," Energy, Elsevier, vol. 36(5), pages 3224-3232.
    3. Reda, Francesco & Arcuri, Natale & Loiacono, Pasquale & Mazzeo, Domenico, 2015. "Energy assessment of solar technologies coupled with a ground source heat pump system for residential energy supply in Southern European climates," Energy, Elsevier, vol. 91(C), pages 294-305.
    4. Girard, Aymeric & Gago, Eulalia Jadraque & Muneer, Tariq & Caceres, Gustavo, 2015. "Higher ground source heat pump COP in a residential building through the use of solar thermal collectors," Renewable Energy, Elsevier, vol. 80(C), pages 26-39.
    5. Yu Jin Nam & Xin Yang Gao & Sung Hoon Yoon & Kwang Ho Lee, 2015. "Study on the Performance of a Ground Source Heat Pump System Assisted by Solar Thermal Storage," Energies, MDPI, vol. 8(12), pages 1-17, November.
    6. Jin-Hwan Oh & Yujin Nam, 2015. "Study on the Effect of Ground Heat Storage by Solar Heat Using Numerical Simulation," Energies, MDPI, vol. 8(12), pages 1-19, December.
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    Cited by:

    1. Weeratunge, Hansani & Narsilio, Guillermo & de Hoog, Julian & Dunstall, Simon & Halgamuge, Saman, 2018. "Model predictive control for a solar assisted ground source heat pump system," Energy, Elsevier, vol. 152(C), pages 974-984.
    2. Min Gyung Yu & Yujin Nam, 2016. "Study on the Optimum Design Method of Heat Source Systems with Heat Storage Using a Genetic Algorithm," Energies, MDPI, vol. 9(10), pages 1-17, October.
    3. Michael Lanahan & Paulo Cesar Tabares-Velasco, 2017. "Seasonal Thermal-Energy Storage: A Critical Review on BTES Systems, Modeling, and System Design for Higher System Efficiency," Energies, MDPI, vol. 10(6), pages 1-24, May.

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