Optimum geometrical shape parameters for conical diffusers in ducted wind turbines
Encasing of wind turbines in ducts to increase wind energy extraction has been under study for several decades. Ducts are meant to accelerate the wind speed past the wind turbine rotor enclosed in the duct. The most common duct used in wind turbines is a diffuser. Wind speed augmentation in diffuser...
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| Language: | English |
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Science Publishing Group
2021
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| Online Access: | https://article.sciencepublishinggroup.com/html/10.11648.j.ijepe.20160506.11.html http://hdl.handle.net/11408/4569 |
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| author | Masukume, Peace-maker Makaka, Golden Tinarwo, David |
| author_facet | Masukume, Peace-maker Makaka, Golden Tinarwo, David |
| author_sort | Masukume, Peace-maker |
| collection | DSpace |
| description | Encasing of wind turbines in ducts to increase wind energy extraction has been under study for several decades. Ducts are meant to accelerate the wind speed past the wind turbine rotor enclosed in the duct. The most common duct used in wind turbines is a diffuser. Wind speed augmentation in diffusers depends on the geometrical shape parameters of the diffuser, mainly the diffuser expansion angle and the non-dimensional length . This paper addresses wind speed augmentation by empty conical diffusers. It presents the dependence of the wind speed augmentation on the diffuser geometrical shape parameters and the optimum geometrical shape parameters for maximum wind speed augmentation. It is shown that for a given , wind speed augmentation increases with up to the maximum wind speed augmentation and starts to decrease. Each has a unique which gives the maximum wind speed augmentation. It has also been shown that the maximum wind speed augmentation increases with For wind speed increased from 1.48 m/s to 1.55 m/s. |
| format | Article |
| id | ir-11408-4569 |
| institution | My University |
| language | English |
| publishDate | 2021 |
| publisher | Science Publishing Group |
| record_format | dspace |
| spelling | ir-11408-45692022-06-27T13:49:06Z Optimum geometrical shape parameters for conical diffusers in ducted wind turbines Masukume, Peace-maker Makaka, Golden Tinarwo, David Wind energy Wind speed augmentation Diffuser geometrical shape parameters Encasing of wind turbines in ducts to increase wind energy extraction has been under study for several decades. Ducts are meant to accelerate the wind speed past the wind turbine rotor enclosed in the duct. The most common duct used in wind turbines is a diffuser. Wind speed augmentation in diffusers depends on the geometrical shape parameters of the diffuser, mainly the diffuser expansion angle and the non-dimensional length . This paper addresses wind speed augmentation by empty conical diffusers. It presents the dependence of the wind speed augmentation on the diffuser geometrical shape parameters and the optimum geometrical shape parameters for maximum wind speed augmentation. It is shown that for a given , wind speed augmentation increases with up to the maximum wind speed augmentation and starts to decrease. Each has a unique which gives the maximum wind speed augmentation. It has also been shown that the maximum wind speed augmentation increases with For wind speed increased from 1.48 m/s to 1.55 m/s. 2021-11-19T13:43:51Z 2021-11-19T13:43:51Z 2016 Article https://article.sciencepublishinggroup.com/html/10.11648.j.ijepe.20160506.11.html 10.11648/j.ijepe.20160506.11 http://hdl.handle.net/11408/4569 en International Journal of Energy and Power Engineering;Vol. 5; No. 6: p. 77-181 open Science Publishing Group |
| spellingShingle | Wind energy Wind speed augmentation Diffuser geometrical shape parameters Masukume, Peace-maker Makaka, Golden Tinarwo, David Optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| title | Optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| title_full | Optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| title_fullStr | Optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| title_full_unstemmed | Optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| title_short | Optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| title_sort | optimum geometrical shape parameters for conical diffusers in ducted wind turbines |
| topic | Wind energy Wind speed augmentation Diffuser geometrical shape parameters |
| url | https://article.sciencepublishinggroup.com/html/10.11648.j.ijepe.20160506.11.html http://hdl.handle.net/11408/4569 |
| work_keys_str_mv | AT masukumepeacemaker optimumgeometricalshapeparametersforconicaldiffusersinductedwindturbines AT makakagolden optimumgeometricalshapeparametersforconicaldiffusersinductedwindturbines AT tinarwodavid optimumgeometricalshapeparametersforconicaldiffusersinductedwindturbines |