Cableizer

Heat transfer coefficient radiation tray bottom—air

Symbol
$h_{rad,BA}$
Unit
W/(K.m$^2$)
Formulas
$\sigma \epsilon_{t} \left(\theta_{tw,ob}+\theta_{abs}+\theta_{air}+\theta_{abs}\right) \left(\left(\theta_{tw,ob}+\theta_{abs}\right)^2+\left(\theta_{air}+\theta_{abs}\right)^2\right)$
Related
$\epsilon_{t}$
Thermal emissivity wall material
$\sigma$
Stefan Boltzmann constant [W/m$^2$K$^4$]
$\theta_{abs}$
Absolute temperature [K]
$\theta_{air}$
Ambient air temperature [°C]
$\theta_{tw,ob}$
Temperature tray wall (outer) bottom [°C]
Used in
$T_{rad,BA}$
Thermal resistance radiation tray bottom—air [K.m/W]