Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China
The increasingly severe energy crisis and associated environmental issues pose new challenges for the efficient and rational utilization of renewable energy. The solar-assisted ground-source heat pump (SAGSHP) system is a novel heating system that effectively combines the advantages of both solar an...
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2025-04-01
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| Online Access: | https://www.mdpi.com/1996-1073/18/9/2208 |
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| author | Ying Cao Zhibin Zhang Guosheng Jia Jianyu Zhai Jianke Hao Meng Zhang Liwen Jin |
| author_facet | Ying Cao Zhibin Zhang Guosheng Jia Jianyu Zhai Jianke Hao Meng Zhang Liwen Jin |
| author_sort | Ying Cao |
| collection | DOAJ |
| description | The increasingly severe energy crisis and associated environmental issues pose new challenges for the efficient and rational utilization of renewable energy. The solar-assisted ground-source heat pump (SAGSHP) system is a novel heating system that effectively combines the advantages of both solar and geothermal energy. In this study, an SAGSHP system was established through TRNSYS simulation software to provide winter heating and year-round domestic hot water for a residential building. By varying the area of solar collectors (<i>A</i>) and the number (<i>n</i>) and the depth (<i>H</i>) of the borehole heat exchangers (BHEs), the system operational performance, including the system energy consumption, ground temperature attenuation, and heat pump efficiency, was investigated. A comparison with a single ground-source heat pump (GSHP) system was also conducted. After 20 years of operation, the parameter optimization resulted in a reduction of approximately 60 MWh and 70 MWh in system energy consumption, equivalent to saving 7.37 t and 8.60 t of standard coal, respectively. At the same time, the total costs over 20 years can be reduced by 48.20% and 33.77%, respectively. The proposed design method and simulation results can serve as the reference for designing and analyzing the performance of the SAGSHP system. |
| format | Article |
| id | doaj-art-39719e28237a44eeb53b2524e9abdd56 |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-39719e28237a44eeb53b2524e9abdd562025-08-20T01:49:24ZengMDPI AGEnergies1996-10732025-04-01189220810.3390/en18092208Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, ChinaYing Cao0Zhibin Zhang1Guosheng Jia2Jianyu Zhai3Jianke Hao4Meng Zhang5Liwen Jin6School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaChina Architecture Design & Research Group, Beijing 100044, ChinaSchool of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaThe increasingly severe energy crisis and associated environmental issues pose new challenges for the efficient and rational utilization of renewable energy. The solar-assisted ground-source heat pump (SAGSHP) system is a novel heating system that effectively combines the advantages of both solar and geothermal energy. In this study, an SAGSHP system was established through TRNSYS simulation software to provide winter heating and year-round domestic hot water for a residential building. By varying the area of solar collectors (<i>A</i>) and the number (<i>n</i>) and the depth (<i>H</i>) of the borehole heat exchangers (BHEs), the system operational performance, including the system energy consumption, ground temperature attenuation, and heat pump efficiency, was investigated. A comparison with a single ground-source heat pump (GSHP) system was also conducted. After 20 years of operation, the parameter optimization resulted in a reduction of approximately 60 MWh and 70 MWh in system energy consumption, equivalent to saving 7.37 t and 8.60 t of standard coal, respectively. At the same time, the total costs over 20 years can be reduced by 48.20% and 33.77%, respectively. The proposed design method and simulation results can serve as the reference for designing and analyzing the performance of the SAGSHP system.https://www.mdpi.com/1996-1073/18/9/2208carbon emission reductionheat storageperformance optimizationsolar-assisted ground-source heat pump |
| spellingShingle | Ying Cao Zhibin Zhang Guosheng Jia Jianyu Zhai Jianke Hao Meng Zhang Liwen Jin Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China Energies carbon emission reduction heat storage performance optimization solar-assisted ground-source heat pump |
| title | Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China |
| title_full | Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China |
| title_fullStr | Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China |
| title_full_unstemmed | Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China |
| title_short | Performance Prediction and Analysis of Solar-Assisted Ground-Source Heat Pump Systems in Typical Rural Areas, China |
| title_sort | performance prediction and analysis of solar assisted ground source heat pump systems in typical rural areas china |
| topic | carbon emission reduction heat storage performance optimization solar-assisted ground-source heat pump |
| url | https://www.mdpi.com/1996-1073/18/9/2208 |
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