Thermal resistance 2 of multi-layer backfill method

Thermal resistance along flow path 2 in a multi-layer backfill.

Symbol
$R_{q2}$
Unit
K.m/W
Formulae
$R_{q23} + R_{q24}$Paper R. de Lieto Vollaro et al. (2011)
$R_{q21} + R_{q22}$Paper R. de Lieto Vollaro et al. (2014)