Cableizer ®

Temperature wall (inner)

Symbol
$\theta_{t}$
Unit
°C
Formulas
$\left(1-\lambda_{t}\right) \theta_{iter}+\lambda_{t} \left(\theta_{init}+\Delta \theta_{air}\right)$
Related
$\Delta \theta_{air}$
Temperature increase air [K]
$\lambda_{t}$
Relaxation parameter
$\theta_{init}$
Air temperature without load [°C]
$\theta_{iter}$
Air temperature previous iteration [°C]
Used in
$\alpha_{st}$
Heat transfer coefficient radiation [W/(K.m$^2$)]
$I_{c}$
Conductor current [A]
$T_{st}$
Thermal resistance radiation object—tunnel [K.m/W]
$\theta_{c}$
Temperature conductor [°C]
$\theta_{de}$
Temperature duct outer surface [°C]
$\theta_{e}$
External temperature object [°C]
$\theta_{fo}$
Temperature optical fiber [°C]
$\theta_{hsj}$
Temperature protective jacket [°C]
$\theta_{to}$
Temperature wall (outer) [°C]
$W_{fo}$
Heat fiber optic cable [W/m]
$W_{hs}$
Heat dissipation heat source [W/m]