Stefan-Boltzmann law, states that the total radiant heat energy emitted from a surface is proportional to the fourth power of its absolute temperature.
The radiation energy per unit time from a black body is proportional to the fourth power of the absolute temperature and can be expressed with Stefan-Boltzmann Law as: The Stefan-Boltzmann Constant.
Radiate energy = (Emissivity) * (Stefan-Boltzmann constant) * (Temperature)4 * (Area)
The equation is:
P = є σ T4 A
- P: Radiate energy
- σ: The Stefan-Boltzmann Constant
- T: absolute temperature in Kelvin
- є: Emissivity of the material.
- A: Area of the emitting body
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