Air temperature with no load

The meaning of this parameter depends on the calculation method:

The temperature of the air with no load depends on the object:

Symbol
$\theta_{at,0}$
Unit
°C
Formulae
$input$in tunnel
$\theta_{air}+\Delta \theta_{sun}$in air-filled trough
$\theta_a+\frac{\Delta \theta_{sun}}{2\left(\frac{h_t}{w_t}+1\right)}$in channel
Related
$\Delta \theta_{sun}$
$h_t$
$\theta_a$
$\theta_{air}$
$w_t$
Used in
$\Delta \theta_{0t}$
$\theta_{at}$
$\theta_{at,z}$