| Authors | سید عبد المهدی هاشمی,مجید نیکفر,روح اله معتقدی فرد |
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| Journal | THERM SCI |
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| Page number | 11 |
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| Volume number | 19 |
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| Paper Type | Full Paper |
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| Published At | 2015-08-11 |
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| Journal Grade | Scientific - research |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | JCR ,SCOPUS |
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| Keywords | porous medium, radiant burner, wire mesh, radiation efficiency, surface temperature |
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Abstract
In this paper, a radiant metal porous burner which is formed from wire mesh layers
is studied. Surface temperature of the burner is measured in different equivalence
ratios and firing rates and radiation efficiency is calculated for each case. The experiments
are performed for different thicknesses of the porous medium. The results
show that the surface temperature increases with increasing firing rate and maximum
surface temperature occurs in a lean mixture. Comparing the results for different
thicknesses shows that maximum surface temperature is obtained in a medium
with three-layer of wire mesh. The radiation efficiency of the burner
decreases with increasing firing rate. The maximum radiation efficiency is about 30
percent which is obtained in three-layer of wire mesh in the minimum firing rate.
Comparison of the results with the other works shows a good agreement between
them.
