Building integrated diffusers’ area ratio optimization
Abstract This paper presents an investigation into the effect of area ratio parameter of diffusers on its energy output through power coefficient Cp. This parameter has effect both on diffusers’ energy yield, besides diffuser’s size for architectural integration prospects. A systematic increase in d...
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-55091-9 |
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| author | Abdel Rahman Elbakheit |
| author_facet | Abdel Rahman Elbakheit |
| author_sort | Abdel Rahman Elbakheit |
| collection | DOAJ |
| description | Abstract This paper presents an investigation into the effect of area ratio parameter of diffusers on its energy output through power coefficient Cp. This parameter has effect both on diffusers’ energy yield, besides diffuser’s size for architectural integration prospects. A systematic increase in diffusers area ratio is adopted following standardized diffuser profile presented by NACA 1244 aerofoil. A series of area ratios were investigated (i.e., 1.25, 1.5, 1.75, 2, 2.5, 3 and 3.5). Area ratio of 1.5 (i.e., outlet/inlet, 0.75 m/0.50 m) exhibited the highest power coefficient Cp of 4.2, in addition to achieving highest resulting velocity of 25.8 m/s under incident velocity of 16m/s. Considerable wind separation inside inner walls of diffusers occurred from area ratio 1.75 onwards, which impacted resulting velocities. Simulations performed with ANSYS CFD Academic to standalone diffusers. A series of incident velocities employed from 1 to 16 m/s that resulted in velocity increase by 120–156% respectively. |
| format | Article |
| id | doaj-art-ce8b7f5ba3af467f84cf99394349feef |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-ce8b7f5ba3af467f84cf99394349feef2025-08-20T03:10:06ZengNature PortfolioScientific Reports2045-23222024-02-011411910.1038/s41598-024-55091-9Building integrated diffusers’ area ratio optimizationAbdel Rahman Elbakheit0Department of Architecture and Building Science, King Saud UniversityAbstract This paper presents an investigation into the effect of area ratio parameter of diffusers on its energy output through power coefficient Cp. This parameter has effect both on diffusers’ energy yield, besides diffuser’s size for architectural integration prospects. A systematic increase in diffusers area ratio is adopted following standardized diffuser profile presented by NACA 1244 aerofoil. A series of area ratios were investigated (i.e., 1.25, 1.5, 1.75, 2, 2.5, 3 and 3.5). Area ratio of 1.5 (i.e., outlet/inlet, 0.75 m/0.50 m) exhibited the highest power coefficient Cp of 4.2, in addition to achieving highest resulting velocity of 25.8 m/s under incident velocity of 16m/s. Considerable wind separation inside inner walls of diffusers occurred from area ratio 1.75 onwards, which impacted resulting velocities. Simulations performed with ANSYS CFD Academic to standalone diffusers. A series of incident velocities employed from 1 to 16 m/s that resulted in velocity increase by 120–156% respectively.https://doi.org/10.1038/s41598-024-55091-9Diffuser area ratioWind energy augmentationBuilding integrated diffusersDiffuser sizingWind energy optimization in buildingsDiffuser optimization |
| spellingShingle | Abdel Rahman Elbakheit Building integrated diffusers’ area ratio optimization Scientific Reports Diffuser area ratio Wind energy augmentation Building integrated diffusers Diffuser sizing Wind energy optimization in buildings Diffuser optimization |
| title | Building integrated diffusers’ area ratio optimization |
| title_full | Building integrated diffusers’ area ratio optimization |
| title_fullStr | Building integrated diffusers’ area ratio optimization |
| title_full_unstemmed | Building integrated diffusers’ area ratio optimization |
| title_short | Building integrated diffusers’ area ratio optimization |
| title_sort | building integrated diffusers area ratio optimization |
| topic | Diffuser area ratio Wind energy augmentation Building integrated diffusers Diffuser sizing Wind energy optimization in buildings Diffuser optimization |
| url | https://doi.org/10.1038/s41598-024-55091-9 |
| work_keys_str_mv | AT abdelrahmanelbakheit buildingintegrateddiffusersarearatiooptimization |