Radiation heat transfer coefficient from surface of GIL to the surrounding air.

Symbol
$h_{\mathrm{rad_{\mathrm{sa}}}}$
Unit
W/K.m²
Formulae
$4 K_{\mathrm{r}} \sigma \left(\frac{\theta_{\mathrm{a}}}{2} + \frac{\theta_{\mathrm{e}}}{2} + 273\right)^{3}$
Related
$K_{\mathrm{r}}$
$\sigma$
$\theta_{\mathrm{a}}$
$\theta_{\mathrm{e}}$
Used in
$W_{\mathrm{rad_{\mathrm{sa}}}}$