Cableizer
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Angle of exposed wetted surface of pipe

Symbol
$\beta_b$
Unit
rad
Formulae
$\\arccos\left(\frac{2H}{D_{ext}}\right)$
Related
$D_{ext}$
Overall outer diameter of pipe [m]
$H$
Distance center of pipe to ground [m]
Used in
$C_{g2}$
Factor C2 for partially buried pipes
$C_{g3}$
Factor C3 for partially buried pipes
$h_{ground}$
Heat transfer coefficient buried part of wall to soil [W/(K.m$^2$)]
$U_{partially}$
OHTC of partially buried pipe [W/(K.m$^2$)]