Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses.
To improve the light environment of asymmetric large-span externally insulated plastic greenhouses, a solar radiation model that considers the projection path equations of the insulation quilts and validated the model was established. The model was employed to investigate the impact of different hei...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2025-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0309734 |
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| author | Chuanqing Wang Kai Liu Hongyu Ma Tianhua Li Shaojie Wang Dalong Zhang Min Wei |
| author_facet | Chuanqing Wang Kai Liu Hongyu Ma Tianhua Li Shaojie Wang Dalong Zhang Min Wei |
| author_sort | Chuanqing Wang |
| collection | DOAJ |
| description | To improve the light environment of asymmetric large-span externally insulated plastic greenhouses, a solar radiation model that considers the projection path equations of the insulation quilts and validated the model was established. The model was employed to investigate the impact of different heights, spans, and north lighting projection lengths on the greenhouses' light environment. The results revealed that ground radiation interception, a key component of winter lighting, was most influenced by height, followed by span, and least influenced by the projection length of the north lighting roof. Additionally, ground radiation spatial uniformity was most affected by height, followed by the projection length of the north lighting roof, and least influenced by span. The optimization objectives for solar radiation were set to maximize solar radiation interception and minimize the coefficient of variation. The optimal structural parameters for the asymmetric large-span externally insulated plastic greenhouse were determined using the NSGA-II method and the entropy weight-TOPSIS method: the height of 6.97 m, and the projection length of north lighting roof is 7.44 m for a greenhouse with a span of 20.00 m. Compared to the initial greenhouse, the optimized design enhances both radiation interception performance and ensures uniform light distribution. These results offer valuable theoretical guidance for greenhouse construction. |
| format | Article |
| id | doaj-art-79a21579bf8d46aca773d125498be052 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-79a21579bf8d46aca773d125498be0522025-01-17T05:31:43ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01201e030973410.1371/journal.pone.0309734Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses.Chuanqing WangKai LiuHongyu MaTianhua LiShaojie WangDalong ZhangMin WeiTo improve the light environment of asymmetric large-span externally insulated plastic greenhouses, a solar radiation model that considers the projection path equations of the insulation quilts and validated the model was established. The model was employed to investigate the impact of different heights, spans, and north lighting projection lengths on the greenhouses' light environment. The results revealed that ground radiation interception, a key component of winter lighting, was most influenced by height, followed by span, and least influenced by the projection length of the north lighting roof. Additionally, ground radiation spatial uniformity was most affected by height, followed by the projection length of the north lighting roof, and least influenced by span. The optimization objectives for solar radiation were set to maximize solar radiation interception and minimize the coefficient of variation. The optimal structural parameters for the asymmetric large-span externally insulated plastic greenhouse were determined using the NSGA-II method and the entropy weight-TOPSIS method: the height of 6.97 m, and the projection length of north lighting roof is 7.44 m for a greenhouse with a span of 20.00 m. Compared to the initial greenhouse, the optimized design enhances both radiation interception performance and ensures uniform light distribution. These results offer valuable theoretical guidance for greenhouse construction.https://doi.org/10.1371/journal.pone.0309734 |
| spellingShingle | Chuanqing Wang Kai Liu Hongyu Ma Tianhua Li Shaojie Wang Dalong Zhang Min Wei Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses. PLoS ONE |
| title | Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses. |
| title_full | Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses. |
| title_fullStr | Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses. |
| title_full_unstemmed | Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses. |
| title_short | Solar radiation model and optimization of asymmetric large-span externally insulated plastic greenhouses. |
| title_sort | solar radiation model and optimization of asymmetric large span externally insulated plastic greenhouses |
| url | https://doi.org/10.1371/journal.pone.0309734 |
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