Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study
To evaluate the potential of phase-change materials (PCMs) in improving the indoor thermal and airflow environment of Trombe walls under solar energy limitations, a computational fluid dynamics (CFDs) model was employed in this study to perform comparative simulations. Taking traditional Trombe wall...
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MDPI AG
2025-04-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/15/8/1239 |
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| author | Rui Xu Yanfei Zhang Shaoyang Lou Xu Chen Guoyi Zhang Zhonggou Chen |
| author_facet | Rui Xu Yanfei Zhang Shaoyang Lou Xu Chen Guoyi Zhang Zhonggou Chen |
| author_sort | Rui Xu |
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| description | To evaluate the potential of phase-change materials (PCMs) in improving the indoor thermal and airflow environment of Trombe walls under solar energy limitations, a computational fluid dynamics (CFDs) model was employed in this study to perform comparative simulations. Taking traditional Trombe walls (TWs) as the control group and PCM-Trombe walls (PCM-TWs) as the experimental group, the simulation analysis was carried out based on meteorological data from a typical spring day in Hangzhou in 2024. The results indicate that the application of PCM significantly reduced temperature fluctuations in the air channel, lowering the peak temperature by 8.3 °C. Meanwhile, it delayed the decline in ventilation rate, extending the effective ventilation time by approximately one hour. Moreover, by calculating the Grashof number and ventilation rate, it was observed that the buoyancy effect of PCM-TWs is weaker than that of TWs at the peak wind speed, resulting in a lower natural convection intensity. The ventilation rate variation trend of PCM-TWs was smoother, with its peak ventilation rate slightly lower than that of TWs by 0.008 kg/s. |
| format | Article |
| id | doaj-art-4f45319b9f3d4a4686a2991c41a7834d |
| institution | DOAJ |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-4f45319b9f3d4a4686a2991c41a7834d2025-08-20T03:14:15ZengMDPI AGBuildings2075-53092025-04-01158123910.3390/buildings15081239Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case StudyRui Xu0Yanfei Zhang1Shaoyang Lou2Xu Chen3Guoyi Zhang4Zhonggou Chen5Department of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaDepartment of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaDepartment of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaDepartment of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaDepartment of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaDepartment of Landscape and Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaTo evaluate the potential of phase-change materials (PCMs) in improving the indoor thermal and airflow environment of Trombe walls under solar energy limitations, a computational fluid dynamics (CFDs) model was employed in this study to perform comparative simulations. Taking traditional Trombe walls (TWs) as the control group and PCM-Trombe walls (PCM-TWs) as the experimental group, the simulation analysis was carried out based on meteorological data from a typical spring day in Hangzhou in 2024. The results indicate that the application of PCM significantly reduced temperature fluctuations in the air channel, lowering the peak temperature by 8.3 °C. Meanwhile, it delayed the decline in ventilation rate, extending the effective ventilation time by approximately one hour. Moreover, by calculating the Grashof number and ventilation rate, it was observed that the buoyancy effect of PCM-TWs is weaker than that of TWs at the peak wind speed, resulting in a lower natural convection intensity. The ventilation rate variation trend of PCM-TWs was smoother, with its peak ventilation rate slightly lower than that of TWs by 0.008 kg/s.https://www.mdpi.com/2075-5309/15/8/1239Trombe wallphase-change materialventilationnumerical simulationCFD |
| spellingShingle | Rui Xu Yanfei Zhang Shaoyang Lou Xu Chen Guoyi Zhang Zhonggou Chen Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study Buildings Trombe wall phase-change material ventilation numerical simulation CFD |
| title | Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study |
| title_full | Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study |
| title_fullStr | Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study |
| title_full_unstemmed | Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study |
| title_short | Simulation-Based Natural Ventilation Performance Assessment of a Novel Phase-Change-Material-Equipped Trombe Wall Design: A Case Study |
| title_sort | simulation based natural ventilation performance assessment of a novel phase change material equipped trombe wall design a case study |
| topic | Trombe wall phase-change material ventilation numerical simulation CFD |
| url | https://www.mdpi.com/2075-5309/15/8/1239 |
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