Radiation heat transfer is type of heat transfer from an heat source onto the other objects through an empty space with the help of electromagnetic waves. The heat is transferred onto our earth in a similar way where the heat from the sun is traveled through electromagnetic waves through the empty space and helps to warm the objects around us.

Equation to calculate radiation heat transfer is given:

where,
Q = Radiation heat transfer [W]
σ = Stefan Boltzmann constant [5.6703 x 10-8 (W/m2K4)]
THot = Higher temperature [oC]
TCold = Cold temperature [oC]
A = Cross sectional area [m2]

Enter the given values in the below online radiation heat transfer calculator and click calculate button to find the answer.

 Higher Temperature (THot): [oC] Colder Temperature (TCold): [oC] Cross Sectional Area (A): [m2] Radiation Heat Transfer (Q): [W]

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