CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall
Solar chimneys can help to reduce solar heat gain on a building envelope and to enhance natural ventilation. In this work, we proposed three configurations of two solar chimneys combined with a heated wall for the natural ventilation of a room: (I) the chimneys are connected serially, (II) the chimn...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/9/1300 |
| _version_ | 1797490438826885120 |
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| author | Y Quoc Nguyen Viet T. Nguyen Long T. Tran John C. Wells |
| author_facet | Y Quoc Nguyen Viet T. Nguyen Long T. Tran John C. Wells |
| author_sort | Y Quoc Nguyen |
| collection | DOAJ |
| description | Solar chimneys can help to reduce solar heat gain on a building envelope and to enhance natural ventilation. In this work, we proposed three configurations of two solar chimneys combined with a heated wall for the natural ventilation of a room: (I) the chimneys are connected serially, (II) the chimneys are parallel and exhaust air at two separate outlets, and (III) the chimneys are parallel, but the outlets are combined. The airflow rate achieved with each configuration was predicted with a Computational Fluid Dynamics model. The results show the effects of the heat flux in each channel and the geometries of the channels. Configuration (II) shows the highest flow rate. Particularly, the proposed configurations enhance the flow rate significantly and up to 40% when compared to the typical setup with a single channel solar chimney. The findings offer a novel design option for building façades for reducing solar heat gain and enhancing natural ventilation. |
| first_indexed | 2024-03-10T00:33:00Z |
| format | Article |
| id | doaj.art-ea0ca2d60a9a464a8c730ae02d19e29d |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T00:33:00Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-ea0ca2d60a9a464a8c730ae02d19e29d2023-11-23T15:22:13ZengMDPI AGBuildings2075-53092022-08-01129130010.3390/buildings12091300CFD Analysis of Different Ventilation Strategies for a Room with a Heated WallY Quoc Nguyen0Viet T. Nguyen1Long T. Tran2John C. Wells3Computational Engineering and Design Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City 70000, VietnamComputational Engineering and Design Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City 70000, VietnamFaculty of Civil Engineering, Ho Chi Minh City University of Technology, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 70000, VietnamFaculty of Science & Engineering, Ritsumeikan University, Shiga 525-8577, JapanSolar chimneys can help to reduce solar heat gain on a building envelope and to enhance natural ventilation. In this work, we proposed three configurations of two solar chimneys combined with a heated wall for the natural ventilation of a room: (I) the chimneys are connected serially, (II) the chimneys are parallel and exhaust air at two separate outlets, and (III) the chimneys are parallel, but the outlets are combined. The airflow rate achieved with each configuration was predicted with a Computational Fluid Dynamics model. The results show the effects of the heat flux in each channel and the geometries of the channels. Configuration (II) shows the highest flow rate. Particularly, the proposed configurations enhance the flow rate significantly and up to 40% when compared to the typical setup with a single channel solar chimney. The findings offer a novel design option for building façades for reducing solar heat gain and enhancing natural ventilation.https://www.mdpi.com/2075-5309/12/9/1300solar chimneyheated wallCFDnatural convectionairflow rate |
| spellingShingle | Y Quoc Nguyen Viet T. Nguyen Long T. Tran John C. Wells CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall Buildings solar chimney heated wall CFD natural convection airflow rate |
| title | CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall |
| title_full | CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall |
| title_fullStr | CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall |
| title_full_unstemmed | CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall |
| title_short | CFD Analysis of Different Ventilation Strategies for a Room with a Heated Wall |
| title_sort | cfd analysis of different ventilation strategies for a room with a heated wall |
| topic | solar chimney heated wall CFD natural convection airflow rate |
| url | https://www.mdpi.com/2075-5309/12/9/1300 |
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