Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity
In this study, we numerically investigated the influence of the baffle length and emissivity of the walls on heat transfer in a mixed convection coupled with radiation in a rectangular cavity ventilated. The baffle length is used Lb = 0.3, 0.5 and 0.7. The cavity walls are gray. The left vertical wa...
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| Format: | Article |
| Language: | English |
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Renewable Energy Development Center (CDER)
2017-03-01
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| Series: | Revue des Énergies Renouvelables |
| Subjects: | |
| Online Access: | https://revue.cder.dz/index.php/rer/article/view/611 |
| _version_ | 1819121897286139904 |
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| author | M.A. Belmiloud N. Sad_Chemloul M.B. Guemmour |
| author_facet | M.A. Belmiloud N. Sad_Chemloul M.B. Guemmour |
| author_sort | M.A. Belmiloud |
| collection | DOAJ |
| description | In this study, we numerically investigated the influence of the baffle length and emissivity of the walls on heat transfer in a mixed convection coupled with radiation in a rectangular cavity ventilated. The baffle length is used Lb = 0.3, 0.5 and 0.7. The cavity walls are gray. The left vertical wall is heated to a constant heat flux and the other walls are adiabatic. The finite volume method is used to solve the governing equations. At the input of the cavity whose opening height w =H/10, the fluid velocity is determined from the number of Reynolds Re between 50 and 500. The Grashof number Gris fixed to 104 and the Prandtl number Pr is kept constant 0.71. The results obtained in this study show that the heat transfer enhancement depends on the increase in emissivity; However, the increase in total Nusselt number NuT depends on the increase of the baffle length. |
| first_indexed | 2024-12-22T06:43:51Z |
| format | Article |
| id | doaj.art-b633fb1534b647b9bdf838bf8090c635 |
| institution | Directory Open Access Journal |
| issn | 1112-2242 2716-8247 |
| language | English |
| last_indexed | 2024-12-22T06:43:51Z |
| publishDate | 2017-03-01 |
| publisher | Renewable Energy Development Center (CDER) |
| record_format | Article |
| series | Revue des Énergies Renouvelables |
| spelling | doaj.art-b633fb1534b647b9bdf838bf8090c6352022-12-21T18:35:22ZengRenewable Energy Development Center (CDER)Revue des Énergies Renouvelables1112-22422716-82472017-03-012018189611Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavityM.A. Belmiloud0N. Sad_Chemloul1M.B. Guemmour2Department of Mechanical Engineering University Ibn Khaldoun, B.P. 78, 14000 Tiaret, AlgeriaDepartment of Mechanical Engineering University Ibn Khaldoun, B.P. 78, 14000 Tiaret, AlgeriaDepartment of Mechanical Engineering University Ibn Khaldoun, B.P. 78, 14000 Tiaret, AlgeriaIn this study, we numerically investigated the influence of the baffle length and emissivity of the walls on heat transfer in a mixed convection coupled with radiation in a rectangular cavity ventilated. The baffle length is used Lb = 0.3, 0.5 and 0.7. The cavity walls are gray. The left vertical wall is heated to a constant heat flux and the other walls are adiabatic. The finite volume method is used to solve the governing equations. At the input of the cavity whose opening height w =H/10, the fluid velocity is determined from the number of Reynolds Re between 50 and 500. The Grashof number Gris fixed to 104 and the Prandtl number Pr is kept constant 0.71. The results obtained in this study show that the heat transfer enhancement depends on the increase in emissivity; However, the increase in total Nusselt number NuT depends on the increase of the baffle length.https://revue.cder.dz/index.php/rer/article/view/611numerical studymixed convectionbafflewall emissivity |
| spellingShingle | M.A. Belmiloud N. Sad_Chemloul M.B. Guemmour Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity Revue des Énergies Renouvelables numerical study mixed convection baffle wall emissivity |
| title | Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity |
| title_full | Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity |
| title_fullStr | Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity |
| title_full_unstemmed | Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity |
| title_short | Effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity |
| title_sort | effect of baffle length on mixed convection coupled to surface radiation in a rectangle cavity |
| topic | numerical study mixed convection baffle wall emissivity |
| url | https://revue.cder.dz/index.php/rer/article/view/611 |
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