Radiant Energy
Radiant energy, abbreviated as \(E_r\), a type of kinetic energy that is transmitted without the movement of mass.
Radiant Energy formula |
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\(\large{ E_r = \sigma \; T_a^{4} }\) | ||
Symbol | English | Metric |
\(\large{ E_r }\) = radiant force | \(\large{lbf-ft}\) | \(\large{J}\) |
\(\large{ T_a }\) = absolute temperature | \(\large{R}\) | \(\large{K}\) |
\(\large{ \sigma }\) (Greek symbol sigma) = Stefan-Boltzmann constant | \(\large{\frac{Btu}{ft^2\;hr\; R^4}}\) | \(\large{ \frac{W}{m^2-K^4} }\) |