Convection heat transfer, duct to air

Convection heat transfer from duct outer surface to ambient air.

Symbol
$W_{conv_{da}}$
Unit
W/m
Formulae
$D_{do} h_{conv_{da}} \pi \left(- \theta_{air} + \theta_{de}\right)$
Related
$D_{do}$
$\theta_{air}$
Used in
$T_{4iii}$