Radiation power via temperature

One of the methods an object can exchange energy with its environment is via thermal radiation by emitting or absorbing energy in the form of electromagnetic waves. Also known as the Stefan—Boltzmann law of radiation, it states that the rate of thermal radiation is proportional to the fourth power of the radiating body’s temperature.

Notation:

1. \(\sigma\) (sigma) is stefan_boltzmann_constant.

Links:

1. Wikipedia.

radiation_power

power of radiation emitted or absorbed by the body.

Symbol:

P

Latex:

\(P\)

Dimension:

power

emissivity

emissivity of the body’s material.

Symbol:

epsilon

Latex:

\(\varepsilon\)

Dimension:

dimensionless

surface_area

Surface area of the body.

Symbol:

A

Latex:

\(A\)

Dimension:

area

temperature

temperature of the body.

Symbol:

T

Latex:

\(T\)

Dimension:

temperature

law

P = sigma * epsilon * A * T^4

Latex:

\[P = \sigma \varepsilon A T^{4}\]