Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method
Recently, there has been increasing attention on the use of renewable energy in buildings, particularly, the photovoltaic thermal (PVT) system that uses both solar power and thermal energy. However, there is a limit to adopting the PVT system in real buildings because many architects value the aesth...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/7/2317 |
| _version_ | 1797439697093394432 |
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| author | Yunho Kim Jungha Hwang Sangmu Bae Yujin Nam |
| author_facet | Yunho Kim Jungha Hwang Sangmu Bae Yujin Nam |
| author_sort | Yunho Kim |
| collection | DOAJ |
| description | Recently, there has been increasing attention on the use of renewable energy in buildings, particularly, the photovoltaic thermal (PVT) system that uses both solar power and thermal energy. However, there is a limit to adopting the PVT system in real buildings because many architects value the aesthetics of buildings or spaces. This study developed a curtain-wall-type liquid-type PVT (CW-PVT) that can be installed on a wall as it integrates with the building. To analyze the system performance, a real-scale experimental plant was established in an outdoor environment. The performance of the CW-PVT unit was verified for two different module pipe connection types: parallel and serial. Meteorological variable data, the inlet and outlet fluid temperatures, surface temperature, and electrical energy generation of the modules were measured and collected using the measurement equipment according to the module pipe connection type. Consequently, the parallel-type method was approximately 10% more efficient than the serial type in energy production, whereas the serial-type method produced water with a temperature approximately 47% higher than that of the parallel type. Notably, it was advantageous to apply the parallel-type connection to maximize the energy generation efficiency in buildings where the system efficiency is vital and the serial-type connection in buildings where the high temperature of hot water is required. |
| first_indexed | 2024-03-09T11:56:49Z |
| format | Article |
| id | doaj.art-b220eb7cf46a472b94ce4e90dde38eab |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T11:56:49Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b220eb7cf46a472b94ce4e90dde38eab2023-11-30T23:08:33ZengMDPI AGEnergies1996-10732022-03-01157231710.3390/en15072317Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection MethodYunho Kim0Jungha Hwang1Sangmu Bae2Yujin Nam3School of Architectural, Civil, Environmental and Energy Engineering, Kyungpook National University, 80 Daehakro, Buk-gu, Daegu 41566, KoreaSchool of Architectural, Civil, Environmental and Energy Engineering, Kyungpook National University, 80 Daehakro, Buk-gu, Daegu 41566, KoreaDepartment of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 46241, KoreaDepartment of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 46241, KoreaRecently, there has been increasing attention on the use of renewable energy in buildings, particularly, the photovoltaic thermal (PVT) system that uses both solar power and thermal energy. However, there is a limit to adopting the PVT system in real buildings because many architects value the aesthetics of buildings or spaces. This study developed a curtain-wall-type liquid-type PVT (CW-PVT) that can be installed on a wall as it integrates with the building. To analyze the system performance, a real-scale experimental plant was established in an outdoor environment. The performance of the CW-PVT unit was verified for two different module pipe connection types: parallel and serial. Meteorological variable data, the inlet and outlet fluid temperatures, surface temperature, and electrical energy generation of the modules were measured and collected using the measurement equipment according to the module pipe connection type. Consequently, the parallel-type method was approximately 10% more efficient than the serial type in energy production, whereas the serial-type method produced water with a temperature approximately 47% higher than that of the parallel type. Notably, it was advantageous to apply the parallel-type connection to maximize the energy generation efficiency in buildings where the system efficiency is vital and the serial-type connection in buildings where the high temperature of hot water is required.https://www.mdpi.com/1996-1073/15/7/2317curtain-wall-type liquid-type photovoltaic thermal system (CW-PVT)field studypipe connection methodthermal performanceelectrical performance |
| spellingShingle | Yunho Kim Jungha Hwang Sangmu Bae Yujin Nam Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method Energies curtain-wall-type liquid-type photovoltaic thermal system (CW-PVT) field study pipe connection method thermal performance electrical performance |
| title | Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method |
| title_full | Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method |
| title_fullStr | Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method |
| title_full_unstemmed | Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method |
| title_short | Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method |
| title_sort | performance comparison and analysis of the curtain wall type liquid type photovoltaic thermal unit according to the pipe connection method |
| topic | curtain-wall-type liquid-type photovoltaic thermal system (CW-PVT) field study pipe connection method thermal performance electrical performance |
| url | https://www.mdpi.com/1996-1073/15/7/2317 |
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