A Study on the Effect of Performance Factor on GSHP System through Real-Scale Experiments in Korea

Hongkyo Kim, Yujin Nam, Sangmu Bae, Jae Sang Choi and Sang Bum Kim
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Hongkyo Kim: Department of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 46241, Korea
Yujin Nam: Department of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 46241, Korea
Sangmu Bae: Department of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 46241, Korea
Jae Sang Choi: Kajin Engineering Company Limited, 184 Gasan digital 2-ro, Geumcheon-gu, Seoul 08501, Korea
Sang Bum Kim: Kajin Engineering Company Limited, 184 Gasan digital 2-ro, Geumcheon-gu, Seoul 08501, Korea

Energies, 2020, vol. 13, issue 3, 1-18

Abstract: A ground source heat pump system is one of the high-efficient technologies for space heating and cooling since it uses stable underground temperature. However, in actual application, many situations cannot be achieved due to the unsuitable design of operation. In particular, the design characteristics of buildings with different building load patterns are not reflected by the conventional design method. Moreover, the design capacity of the heat pump can be reduced by designing less capacity than the peak load through the introduction of the heat storage tank, but there is no related quantitative design method. Therefore, in this study, the effect of the ground source heat pump system design factors such as shape, length of the ground heat exchanger, and the capacity of the heat storage tank on the system performance was analyzed. To quantify the effect of such factors on system performance, an experimental plant was constructed and case studies were conducted for each design factor.

Keywords: ground source heat pump (GSHP); ground heat exchanger (GHEX); heat storage tank (HST); coefficient of performance (COP); performance factor; real-scale experiment (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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