The effects of natural convection and radiation heat transfer in metal-foam- fin (Aluminum)
نویسنده:
, , , , , ,سال
: 2014
چکیده: The effect of radiation losses on the natural convection heat transfer from metal-foam of convex
parabolic profile is studied analytically and numerically. Two models, with and without effect of
radiation, are introduced based on using energy balance and Darcy’s model to formulate the heat
transfer equation. Air and Aluminum are employed as the cold fluid and porous medium, respectively,
and the effects of radiation, pore density (PPI), Rayleigh number (Ra) and porosity on the heat transfer
rate are studied in detail. The results show by increasing PPI and decreasing Ra the heat transfer rate
decreases as permeability decreases.Furthermore, the effect of porosity on heat transfer without
radiation is negligible, but the effects of radiation is considerable in rising heat transfer rate.
parabolic profile is studied analytically and numerically. Two models, with and without effect of
radiation, are introduced based on using energy balance and Darcy’s model to formulate the heat
transfer equation. Air and Aluminum are employed as the cold fluid and porous medium, respectively,
and the effects of radiation, pore density (PPI), Rayleigh number (Ra) and porosity on the heat transfer
rate are studied in detail. The results show by increasing PPI and decreasing Ra the heat transfer rate
decreases as permeability decreases.Furthermore, the effect of porosity on heat transfer without
radiation is negligible, but the effects of radiation is considerable in rising heat transfer rate.
کلیدواژه(گان): Porous fin,Metal foam,Radiation,Pore density,Heat transfer
کالکشن
:
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آمار بازدید
The effects of natural convection and radiation heat transfer in metal-foam- fin (Aluminum)
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| contributor author | سعید عبدالهی | en |
| contributor author | سعید زینالی هریس | en |
| contributor author | علی دشتی | en |
| contributor author | M. R. Khosravi | en |
| contributor author | saeed abdolahi | fa |
| contributor author | Saeed Zeinali Heris | fa |
| contributor author | Ali Dashti | fa |
| date accessioned | 2020-06-06T14:13:41Z | |
| date available | 2020-06-06T14:13:41Z | |
| date copyright | 2/24/2014 | |
| date issued | 2014 | |
| identifier uri | https://libsearch.um.ac.ir:443/fum/handle/fum/3387786 | |
| description abstract | The effect of radiation losses on the natural convection heat transfer from metal-foam of convex parabolic profile is studied analytically and numerically. Two models, with and without effect of radiation, are introduced based on using energy balance and Darcy’s model to formulate the heat transfer equation. Air and Aluminum are employed as the cold fluid and porous medium, respectively, and the effects of radiation, pore density (PPI), Rayleigh number (Ra) and porosity on the heat transfer rate are studied in detail. The results show by increasing PPI and decreasing Ra the heat transfer rate decreases as permeability decreases.Furthermore, the effect of porosity on heat transfer without radiation is negligible, but the effects of radiation is considerable in rising heat transfer rate. | en |
| language | English | |
| title | The effects of natural convection and radiation heat transfer in metal-foam- fin (Aluminum) | en |
| type | Conference Paper | |
| contenttype | External Fulltext | |
| subject keywords | Porous fin | en |
| subject keywords | Metal foam | en |
| subject keywords | Radiation | en |
| subject keywords | Pore density | en |
| subject keywords | Heat transfer | en |
| identifier link | https://profdoc.um.ac.ir/paper-abstract-1040373.html | |
| conference title | The 8th International Chemical Engineering Congress and Exhibition IChEC 2014 | en |
| conference location | کیش | fa |
| identifier articleid | 1040373 |