Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates
Based on previous research, a mathematical model of photovoltaic thermal solar air heaters with baffles and hole plates (PVTSAH-B) was proposed to analyze the influence of the opening ratio on the flow and heat transfer characteristics of PVTSAH-B and to further improve its performance. The results...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23005701 |
| _version_ | 1797729950407589888 |
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| author | Ziye Song Yibing Xue Yougui Feng |
| author_facet | Ziye Song Yibing Xue Yougui Feng |
| author_sort | Ziye Song |
| collection | DOAJ |
| description | Based on previous research, a mathematical model of photovoltaic thermal solar air heaters with baffles and hole plates (PVTSAH-B) was proposed to analyze the influence of the opening ratio on the flow and heat transfer characteristics of PVTSAH-B and to further improve its performance. The results showed that the air velocity and temperature distributions were affected by the opening ratio of hole plates. The vortex zones in PVTSAH-B could be broken by air jet flow when the opening ratio of hole plates was less than 0.4. The PV modular surface temperature and the area of the high-temperature zones decreased with the decreasing of the opening ratio of hole plates. Lowering the opening ratio of hole plates could increase the thermal and power efficiency. However, the fan energy consumption increased due to the decrease in the opening ratio of hole plates increasing the pressure loss. Therefore, the effective power efficiency decreased. 0.4 opening ratio of hole plates recorded the highest performance of PVTSAH-B. Meanwhile, the maximum values of the effective power efficiency, thermal efficiency and the total efficiency were 0.129, 0.567 and 0.696 respectively, which were 5.97%, 12.30% and 11.07%, higher than the opening ratio 1.0, respectively. |
| first_indexed | 2024-03-12T11:37:01Z |
| format | Article |
| id | doaj.art-f9002eecd88c44e481596d1b162ec746 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-12T11:37:01Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-f9002eecd88c44e481596d1b162ec7462023-09-01T05:01:37ZengElsevierCase Studies in Thermal Engineering2214-157X2023-09-0149103264Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole platesZiye Song0Yibing Xue1Yougui Feng2School of Architecture and Urban Planning, Shandong Jianzhu University, Jinan, 250101, ChinaSchool of Architecture and Urban Planning, Shandong Jianzhu University, Jinan, 250101, China; Corresponding author.Shandong Zhengyuan Aerial Remote Sensing Technology Co., Ltd, Jinan, 250101, China; School of Surveying and Geo-Informatics, Shandong Jianzhu University Jinan, 250101, ChinaBased on previous research, a mathematical model of photovoltaic thermal solar air heaters with baffles and hole plates (PVTSAH-B) was proposed to analyze the influence of the opening ratio on the flow and heat transfer characteristics of PVTSAH-B and to further improve its performance. The results showed that the air velocity and temperature distributions were affected by the opening ratio of hole plates. The vortex zones in PVTSAH-B could be broken by air jet flow when the opening ratio of hole plates was less than 0.4. The PV modular surface temperature and the area of the high-temperature zones decreased with the decreasing of the opening ratio of hole plates. Lowering the opening ratio of hole plates could increase the thermal and power efficiency. However, the fan energy consumption increased due to the decrease in the opening ratio of hole plates increasing the pressure loss. Therefore, the effective power efficiency decreased. 0.4 opening ratio of hole plates recorded the highest performance of PVTSAH-B. Meanwhile, the maximum values of the effective power efficiency, thermal efficiency and the total efficiency were 0.129, 0.567 and 0.696 respectively, which were 5.97%, 12.30% and 11.07%, higher than the opening ratio 1.0, respectively.http://www.sciencedirect.com/science/article/pii/S2214157X23005701Photovoltaic thermalOpening ratioHole platesEfficiencyPressure loss |
| spellingShingle | Ziye Song Yibing Xue Yougui Feng Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates Case Studies in Thermal Engineering Photovoltaic thermal Opening ratio Hole plates Efficiency Pressure loss |
| title | Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates |
| title_full | Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates |
| title_fullStr | Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates |
| title_full_unstemmed | Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates |
| title_short | Optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates |
| title_sort | optimizing structure of photovoltaic thermal solar air heaters with baffles and hole plates |
| topic | Photovoltaic thermal Opening ratio Hole plates Efficiency Pressure loss |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23005701 |
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