Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses
This study investigates the experimental analysis of the energy saving potential of integrating a photovoltaic-thermal (PVT) assisted ground source heat pump system under heating season operation. The demonstration building is an energy plus solar house located in Daejeon, South Korea. The coefficie...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25002345 |
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| author | Won-Jong Choi Wangje Lee Deuk-Won Kim Youngsub An Hong-Jin Joo Joo Young Hong Min-Hwi Kim |
| author_facet | Won-Jong Choi Wangje Lee Deuk-Won Kim Youngsub An Hong-Jin Joo Joo Young Hong Min-Hwi Kim |
| author_sort | Won-Jong Choi |
| collection | DOAJ |
| description | This study investigates the experimental analysis of the energy saving potential of integrating a photovoltaic-thermal (PVT) assisted ground source heat pump system under heating season operation. The demonstration building is an energy plus solar house located in Daejeon, South Korea. The coefficient of performance (COP) was measured during heating and domestic hot water operations to compare the energy supply efficiency of the proposed system and conventional systems. The results showed that the COP of the heat pump system was observed 4.5 for heating and 3.9 for domestic hot water. The ground source operation achieved COPs of 4.6 for heating and 4.4 for domestic hot water, while the PVT assisted ground source operation achieved COPs of 5.2 for heating and 4.4 for domestic hot water. The electrical and thermal utilization ratio of the PVT system were 7.5 %–21.2 % during the heating season. The seasonal performance factor and seasonal performance factor in grid of the proposed system showed 4.9 and 5.3, respectively. The experimental results confirmed that the PVT assisted ground source heat pump system is more energy-efficient with reducing carbon emissions compared to conventional systems. |
| format | Article |
| id | doaj-art-4fec2a0932a44598a42ab1a0efda5ec3 |
| institution | DOAJ |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-4fec2a0932a44598a42ab1a0efda5ec32025-08-20T03:18:16ZengElsevierCase Studies in Thermal Engineering2214-157X2025-05-016910597410.1016/j.csite.2025.105974Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy housesWon-Jong Choi0Wangje Lee1Deuk-Won Kim2Youngsub An3Hong-Jin Joo4Joo Young Hong5Min-Hwi Kim6Renewable Energy System Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu Daejeon 34129, Republic of Korea; Department of Architectural Engineering, College of Engineering, Hanyang University, 222, Wangsimni-Ro, Seongdong-Gu, Seoul 04763, Republic of KoreaRenewable Energy System Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu Daejeon 34129, Republic of KoreaRenewable Energy System Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu Daejeon 34129, Republic of KoreaRenewable Energy System Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu Daejeon 34129, Republic of KoreaRenewable Energy System Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu Daejeon 34129, Republic of KoreaDepartment of Smart City Architectural Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu Daejeon 34134, Republic of KoreaRenewable Energy System Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu Daejeon 34129, Republic of Korea; Corresponding author.This study investigates the experimental analysis of the energy saving potential of integrating a photovoltaic-thermal (PVT) assisted ground source heat pump system under heating season operation. The demonstration building is an energy plus solar house located in Daejeon, South Korea. The coefficient of performance (COP) was measured during heating and domestic hot water operations to compare the energy supply efficiency of the proposed system and conventional systems. The results showed that the COP of the heat pump system was observed 4.5 for heating and 3.9 for domestic hot water. The ground source operation achieved COPs of 4.6 for heating and 4.4 for domestic hot water, while the PVT assisted ground source operation achieved COPs of 5.2 for heating and 4.4 for domestic hot water. The electrical and thermal utilization ratio of the PVT system were 7.5 %–21.2 % during the heating season. The seasonal performance factor and seasonal performance factor in grid of the proposed system showed 4.9 and 5.3, respectively. The experimental results confirmed that the PVT assisted ground source heat pump system is more energy-efficient with reducing carbon emissions compared to conventional systems.http://www.sciencedirect.com/science/article/pii/S2214157X25002345Photovoltaic-thermal systemGround source heat pumpPVT assisted ground source heat pump systemEnergy efficiencyRenewable energy integration |
| spellingShingle | Won-Jong Choi Wangje Lee Deuk-Won Kim Youngsub An Hong-Jin Joo Joo Young Hong Min-Hwi Kim Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses Case Studies in Thermal Engineering Photovoltaic-thermal system Ground source heat pump PVT assisted ground source heat pump system Energy efficiency Renewable energy integration |
| title | Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses |
| title_full | Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses |
| title_fullStr | Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses |
| title_full_unstemmed | Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses |
| title_short | Experimental investigation of the energy performance of a photovoltaic-thermal assisted ground source heat pump system for net plus energy houses |
| title_sort | experimental investigation of the energy performance of a photovoltaic thermal assisted ground source heat pump system for net plus energy houses |
| topic | Photovoltaic-thermal system Ground source heat pump PVT assisted ground source heat pump system Energy efficiency Renewable energy integration |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25002345 |
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