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How do you calculate the radiative heat transfer coefficient?

Answer 1

Matthew Arnold

#h_"rad"=εσ("T1"^2 + T2^{2 ) )(T1+T2)#

Determine the heat transfer coefficient that is radiated:

#h_"rad"=εσ("T_1"^2 + T_2^{2 ) )(T_1+T_2)#

#---------------------#

The Stefan-Boltzmann constant: #σ=5.6703*10^(−8)W/(m^2*K^4)#

#T# = absolute temperature in Kelvin (K) :

#T_1#= of the first object , #T_2#= of the second object.

#color(red)("Check out this other answer")#: How do you calculate radiation heat transfer?

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Answer 2

Audrey Arnold

With the Stefan-Boltzmann law and the characteristics of the emitting and receiving surfaces, the radiative heat transfer coefficient (hr) can be computed as follows: hr = εσ(T1^2 + T2^2)(T1 + T2), where ε is the surface's emissivity, σ is the Stefan-Boltzmann constant (5.67 x 10^-8 W/m^2K^4), and T1 and T2 are the temperatures of the two surfaces in Kelvin.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.