Related Resources: heat transfer
Radiant Heat Parallel Plates Equation and Calculator
Net radiant heat exchange for two isothermal (constant temperature) parallel flat black plates of equal size equation and calculator.
ALL calculators require a Premium Membership
The heat flow (q) from the plate is calculated as:
q = 56.69 x 10-9 x VF(1-2) x A x (T14 - T24 )
Where 56.69 x 10-9 is the average Stefan-Bolzmann constant, A is the area of the plate, T1 is the plate 1 temperature and T2 is the plate 2 temperature. The view factor VF(1-2) (also known as radiation shape factor, angle factor, and configuration factor) is defined as:
x = L / D
y = W / D
L = Plate Length (m)
W = Plate Width (W)
D = Spacing (m)
T1 = Plate 1 Temperature (K)
T2 = Plate 2 Temperature (K)
VF = View Factor
q = Radiated Heat Flow (W)
Ellison G. N., Thermal Computations for Electronic Equipment , Van Nostrand Reinhold Company, New York, 1984. p. 78 - 79.
Holman, J.P., Heat Transfer , 7th ed., McGraw Hill Book Company, New York, 1990. p. 385 - 405.
Link to this Webpage: