Heat transfer processes

Stefan-Boltzmann law

		x
W

ε

m²

T₁

T₂

σ	W/(m²·K⁴)
5.67E-8

1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"

		variables: P - radiation power emitted by heated solid σ - Stefan-Boltzmann constant ε - emissive capacity of solid S - area of emitting surface equal area of absorption surface T₁ - temperature of radiating body T₂ - temperature of environment