Temperature of tunnel wall at outlet

Temperature of the inner tunnel wall, at tunnel outlet.

Symbol
$\theta_{t_{L}}$
Unit
$^{\circ}$C
Formulae
$T_{a} W_{a_{L}} - T_{t} \left(N_{c} N_{sys} W_{tot} - W_{a_{L}}\right) + \theta_{at_{L}}$
$\theta_{at_{L}}$