Thermal resistance of insulation

Symbol
$T_{ins}$
Unit
K.m/W
Formulae
$\frac{\ln{\left(\frac{d_{ins}}{do_{pipe}} \right)}}{2 k_{ins} \pi}$
$do_{pipe}$
Used in
$U_{wall}$
OHTC of pipe wall [W/(K.m$^2$)]