Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings
Global building energy consumption is significantly increasing. Utilizing renewable energy sources may be an effective approach to achieving low-carbon and energy-efficient buildings. A combined system incorporating solar photovoltaic–thermal (PV/T) components with an air-source heat pump (ASHP) was...
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MDPI AG
2025-07-01
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| Online Access: | https://www.mdpi.com/2075-5309/15/14/2564 |
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| author | Haoran Ning Fu Liang Huaxin Wu Zeguo Qiu Zhipeng Fan Bingxin Xu |
| author_facet | Haoran Ning Fu Liang Huaxin Wu Zeguo Qiu Zhipeng Fan Bingxin Xu |
| author_sort | Haoran Ning |
| collection | DOAJ |
| description | Global building energy consumption is significantly increasing. Utilizing renewable energy sources may be an effective approach to achieving low-carbon and energy-efficient buildings. A combined system incorporating solar photovoltaic–thermal (PV/T) components with an air-source heat pump (ASHP) was studied for simultaneous heating and power generation in a real residential building. The back panel of the PV/T component featured a novel polygonal Freon circulation channel design. A prototype of the combined heating and power supply system was constructed and tested in Fuzhou City, China. The results indicate that the average coefficient of performance (COP) of the system is 4.66 when the ASHP operates independently. When the PV/T component is integrated with the ASHP, the average COP increases to 5.37. On sunny days, the daily average thermal output of 32 PV/T components reaches 24 kW, while the daily average electricity generation is 64 kW·h. On cloudy days, the average daily power generation is 15.6 kW·h; however, the residual power stored in the battery from the previous day could be utilized to ensure the energy demand in the system. Compared to conventional photovoltaic (PV) systems, the overall energy utilization efficiency improves from 5.68% to 17.76%. The hot water temperature stored in the tank can reach 46.8 °C, satisfying typical household hot water requirements. In comparison to standard PV modules, the system achieves an average cooling efficiency of 45.02%. The variation rate of the system’s thermal loss coefficient is relatively low at 5.07%. The optimal water tank capacity for the system is determined to be 450 L. This system demonstrates significant potential for providing efficient combined heat and power supply for buildings, offering considerable economic and environmental benefits, thereby serving as a reference for the future development of low-carbon and energy-saving building technologies. |
| format | Article |
| id | doaj-art-c31c9286db2e4de590e31fd5f2c8a16f |
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| issn | 2075-5309 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-c31c9286db2e4de590e31fd5f2c8a16f2025-07-25T13:17:42ZengMDPI AGBuildings2075-53092025-07-011514256410.3390/buildings15142564Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential BuildingsHaoran Ning0Fu Liang1Huaxin Wu2Zeguo Qiu3Zhipeng Fan4Bingxin Xu5School of Energy and Civil Engineering, Harbin University of Commerce, Harbin 150028, ChinaSchool of Energy and Civil Engineering, Harbin University of Commerce, Harbin 150028, ChinaTsinghua Tongfang Energy Conservation Engineering Technology Co., Ltd., Beijing 100083, ChinaNortheast Asia Service Outsourcing Research Center, Harbin University of Commerce, Harbin 150028, ChinaNortheast Asia Service Outsourcing Research Center, Harbin University of Commerce, Harbin 150028, ChinaSchool of Energy and Civil Engineering, Harbin University of Commerce, Harbin 150028, ChinaGlobal building energy consumption is significantly increasing. Utilizing renewable energy sources may be an effective approach to achieving low-carbon and energy-efficient buildings. A combined system incorporating solar photovoltaic–thermal (PV/T) components with an air-source heat pump (ASHP) was studied for simultaneous heating and power generation in a real residential building. The back panel of the PV/T component featured a novel polygonal Freon circulation channel design. A prototype of the combined heating and power supply system was constructed and tested in Fuzhou City, China. The results indicate that the average coefficient of performance (COP) of the system is 4.66 when the ASHP operates independently. When the PV/T component is integrated with the ASHP, the average COP increases to 5.37. On sunny days, the daily average thermal output of 32 PV/T components reaches 24 kW, while the daily average electricity generation is 64 kW·h. On cloudy days, the average daily power generation is 15.6 kW·h; however, the residual power stored in the battery from the previous day could be utilized to ensure the energy demand in the system. Compared to conventional photovoltaic (PV) systems, the overall energy utilization efficiency improves from 5.68% to 17.76%. The hot water temperature stored in the tank can reach 46.8 °C, satisfying typical household hot water requirements. In comparison to standard PV modules, the system achieves an average cooling efficiency of 45.02%. The variation rate of the system’s thermal loss coefficient is relatively low at 5.07%. The optimal water tank capacity for the system is determined to be 450 L. This system demonstrates significant potential for providing efficient combined heat and power supply for buildings, offering considerable economic and environmental benefits, thereby serving as a reference for the future development of low-carbon and energy-saving building technologies.https://www.mdpi.com/2075-5309/15/14/2564solar energyPV/Tair-source heat pumpCOPheat and power generation |
| spellingShingle | Haoran Ning Fu Liang Huaxin Wu Zeguo Qiu Zhipeng Fan Bingxin Xu Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings Buildings solar energy PV/T air-source heat pump COP heat and power generation |
| title | Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings |
| title_full | Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings |
| title_fullStr | Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings |
| title_full_unstemmed | Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings |
| title_short | Research on the Operating Performance of a Combined Heat and Power System Integrated with Solar PV/T and Air-Source Heat Pump in Residential Buildings |
| title_sort | research on the operating performance of a combined heat and power system integrated with solar pv t and air source heat pump in residential buildings |
| topic | solar energy PV/T air-source heat pump COP heat and power generation |
| url | https://www.mdpi.com/2075-5309/15/14/2564 |
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