Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies
This study focuses on enhancing the heat collection performance of solar chimney systems (SCS). The effect of various sizing parameters on the square SCS with a single side inlet is investigated through experimental and numerical simulations for optimization. The experimental results demonstrate sig...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24017453 |
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| author | Jing Jia Jing Nie Hao Su Jin-Chen XU Xinyao Ruan Wei Gao |
| author_facet | Jing Jia Jing Nie Hao Su Jin-Chen XU Xinyao Ruan Wei Gao |
| author_sort | Jing Jia |
| collection | DOAJ |
| description | This study focuses on enhancing the heat collection performance of solar chimney systems (SCS). The effect of various sizing parameters on the square SCS with a single side inlet is investigated through experimental and numerical simulations for optimization. The experimental results demonstrate significant variation in temperature uniformity among absorbers made from different materials. The composite absorber consisting of bamboo glue board, aluminum, sand, and black high-density polyethylene foam board exhibits excellent temperature uniformity. Optimization is performed with heat collection efficiency and chimney inlet fluid velocity as objective functions. The results indicate that adjusting the transparent cover inclination angle and chimney dispersion angle significantly enhances heat collection efficiency. Specifically, the SCS achieves a heat collection efficiency of 42.54 % when the inclination angle is set to 10° and the chimney dispersion angle is set to 1°. The chimney inlet fluid velocity of the SCS varies with different chimney dispersion angles at the same transparent cover inclination. At a dispersion angle of 2°, the velocity reaches a maximum of 2.090 m/s. Due to the large transparent cover area of the SCS, it is recommended to integrate the SCS with buildings and agriculture to achieve zero energy consumption and promote sustainable agriculture. |
| format | Article |
| id | doaj-art-2d4e073ecc074c4cb63295b8b80e80b3 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-2d4e073ecc074c4cb63295b8b80e80b32025-02-02T05:27:14ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105714Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studiesJing Jia0Jing Nie1Hao Su2Jin-Chen XU3Xinyao Ruan4Wei Gao5College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, 010051, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, 010051, China; Inner Mongolia Key Laboratory of Renewable Energy, Hohhot, 010051, China; Corresponding author. College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot. 010051, China.College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, 010051, ChinaCollege of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, 010051, ChinaHigh School Affiliated to Inner Mongolia Normal University, ChinaHuaneng Urad Middle Banner New Energy Generation Co., Ltd, ChinaThis study focuses on enhancing the heat collection performance of solar chimney systems (SCS). The effect of various sizing parameters on the square SCS with a single side inlet is investigated through experimental and numerical simulations for optimization. The experimental results demonstrate significant variation in temperature uniformity among absorbers made from different materials. The composite absorber consisting of bamboo glue board, aluminum, sand, and black high-density polyethylene foam board exhibits excellent temperature uniformity. Optimization is performed with heat collection efficiency and chimney inlet fluid velocity as objective functions. The results indicate that adjusting the transparent cover inclination angle and chimney dispersion angle significantly enhances heat collection efficiency. Specifically, the SCS achieves a heat collection efficiency of 42.54 % when the inclination angle is set to 10° and the chimney dispersion angle is set to 1°. The chimney inlet fluid velocity of the SCS varies with different chimney dispersion angles at the same transparent cover inclination. At a dispersion angle of 2°, the velocity reaches a maximum of 2.090 m/s. Due to the large transparent cover area of the SCS, it is recommended to integrate the SCS with buildings and agriculture to achieve zero energy consumption and promote sustainable agriculture.http://www.sciencedirect.com/science/article/pii/S2214157X24017453Solar chimney systemEfficiencyStructural optimizationThermal energy |
| spellingShingle | Jing Jia Jing Nie Hao Su Jin-Chen XU Xinyao Ruan Wei Gao Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies Case Studies in Thermal Engineering Solar chimney system Efficiency Structural optimization Thermal energy |
| title | Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies |
| title_full | Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies |
| title_fullStr | Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies |
| title_full_unstemmed | Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies |
| title_short | Structural optimization of solar chimney system based on heat efficiency and flow velocity: Numerical and Experimental studies |
| title_sort | structural optimization of solar chimney system based on heat efficiency and flow velocity numerical and experimental studies |
| topic | Solar chimney system Efficiency Structural optimization Thermal energy |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24017453 |
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