Thermal resistance 32 of multi-layer backfill

Thermal resistance of 2nd segment (soil) along flow path $\Phi_3$ of the multi-layer backfill method.

Symbol

$R_{q32}$

Unit

K.m/W

Formulae

$2\rho_4 C_{b6} \left(\frac{L_{b4}+d_{im}}{2w_{b4}}\right)^{C_{b7}}$

Related

$C_{bq}$

Constants $C_1$ - $C_7$ of multi-layer backfill

$d_{im}$

Imaginary layer of soil [m]

$L_{b4}$

Trench depth of multi-layer backfill [m]

$\rho_4$

Thermal resistivity of soil [K.m/W]

$w_{b4}$

Distance to lateral edge of multi-layer backfill [m]

Used in

$R_{CG}$

Thermal resistance of multi-layer backfill [K.m/W]