Symbol
$\theta_{\mathrm{de}}$
Unit
°C
Formulae
$- T_{\mathrm{4ii}} W_{\mathrm{t}} n_{\mathrm{cc}} + \theta_{\mathrm{di}}$cable(s) in duct
$\frac{1}{T_{\mathrm{sa}} + T_{\mathrm{st}}} \left(T_{\mathrm{sa}} T_{\mathrm{st}} W_{\mathrm{tot}} + T_{\mathrm{sa}} \theta_{\mathrm{t}} + T_{\mathrm{st}} \theta_{\mathrm{at}}\right)$cable/heat source in tunnel
$- T_{\mathrm{4ii}} W_{\mathrm{t}} n_{\mathrm{cc}} + \theta_{\mathrm{di}}$cable in trough
$- T_{\mathrm{4ii}} W_{\mathrm{hs}} + \theta_{\mathrm{di}}$heat source in duct
Related
$n_{\mathrm{cc}}$
$T_{\mathrm{4ii}}$
$\theta_{\mathrm{at}}$
$\theta_{\mathrm{di}}$
$\theta_{\mathrm{t}}$
$W_{\mathrm{hs}}$
$W_{\mathrm{t}}$
$W_{\mathrm{tot}}$
Used in
$I_{\mathrm{c}}$
$\theta_{\mathrm{c}}$