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Radiation while simulation of heat transfer with only Flue gas?

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Old   March 21, 2019, 05:46
Talking Radiation while simulation of heat transfer with only Flue gas?
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shafqut hussain shah
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Dear all,

I am currently started studying CFD and i have a very basic question regarding heat transfer CFD.

I am suppose to calculate the overall heat Flux through a modified Boiler pipe.

when we calculate the heat flux we only consider energy transfer through convection?

My question is that do we include radiation (in terms of internal emissivity ) while calculating over all heat Flux through a boiler pipe with Flue gas inside the boiler and tube surface temperature as 457 K.
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