Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System
Building energy consumption accounts for a large proportion of total global energy consumption, and heating and air conditioning energy consumption is a key control point for building energy efficiency. Coupling water-loop heat pumps with PVT system can improve system stability and increase building...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/18/e3sconf_arfee24_03006.pdf |
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| author | Lv Tiangang Liu Bing Wu Jun Zhu Li Hou Jingxuan |
| author_facet | Lv Tiangang Liu Bing Wu Jun Zhu Li Hou Jingxuan |
| author_sort | Lv Tiangang |
| collection | DOAJ |
| description | Building energy consumption accounts for a large proportion of total global energy consumption, and heating and air conditioning energy consumption is a key control point for building energy efficiency. Coupling water-loop heat pumps with PVT system can improve system stability and increase building energy efficiency. This study designs a building energy supply system integrating PVT and a water-loop heat pump based on Tianjin's meteorological data, using TRNSYS software to establish a dynamic model. By employing the Hooke-Jeeves algorithm, the system's design and operation parameters were optimized with annual cost and system COP as objective functions. Design variables included PVT inclination, azimuth, area, heat pump capacity, and tank volume, while operational variables were PVT backplate temperature and tank temperature. Results indicate optimal settings: PVT inclination at 44.8°, azimuth at 3.8°, area of 213.7 m2, heat pump capacity of 118.4 kW, and tank volume of 8.6 m3, reducing annual costs by 6.01%. Operationally, T1-T2 limits are 8℃ (upper) and 3℃ (lower), while T2 ranges from 15℃ to 47℃, achieving the highest COP, with a 4%- 6% improvement compared to pre-optimization. |
| format | Article |
| id | doaj-art-55715dbb505d4990b2ce29e4696eddb7 |
| institution | DOAJ |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-55715dbb505d4990b2ce29e4696eddb72025-08-20T03:16:28ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016180300610.1051/e3sconf/202561803006e3sconf_arfee24_03006Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply SystemLv Tiangang0Liu Bing1Wu Jun2Zhu Li3Hou Jingxuan4Three Gorges Electric Energy Co.,LtdThree Gorges Electric Energy Co.,LtdThree Gorges Electric Energy Co.,LtdSchool of Architecture, Tianjin UniversitySchool of Architecture, Tianjin UniversityBuilding energy consumption accounts for a large proportion of total global energy consumption, and heating and air conditioning energy consumption is a key control point for building energy efficiency. Coupling water-loop heat pumps with PVT system can improve system stability and increase building energy efficiency. This study designs a building energy supply system integrating PVT and a water-loop heat pump based on Tianjin's meteorological data, using TRNSYS software to establish a dynamic model. By employing the Hooke-Jeeves algorithm, the system's design and operation parameters were optimized with annual cost and system COP as objective functions. Design variables included PVT inclination, azimuth, area, heat pump capacity, and tank volume, while operational variables were PVT backplate temperature and tank temperature. Results indicate optimal settings: PVT inclination at 44.8°, azimuth at 3.8°, area of 213.7 m2, heat pump capacity of 118.4 kW, and tank volume of 8.6 m3, reducing annual costs by 6.01%. Operationally, T1-T2 limits are 8℃ (upper) and 3℃ (lower), while T2 ranges from 15℃ to 47℃, achieving the highest COP, with a 4%- 6% improvement compared to pre-optimization.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/18/e3sconf_arfee24_03006.pdf |
| spellingShingle | Lv Tiangang Liu Bing Wu Jun Zhu Li Hou Jingxuan Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System E3S Web of Conferences |
| title | Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System |
| title_full | Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System |
| title_fullStr | Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System |
| title_full_unstemmed | Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System |
| title_short | Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System |
| title_sort | optimization study of pvt coupled water loop heat pump energy supply system |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/18/e3sconf_arfee24_03006.pdf |
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