Calculates the heat radiation exchange between surface 1 enclosed by surface 2.
function HeatRadiationTwoEnclosedSurfaces extends BuildingSystems.HAM.HeatRadiation.BaseClasses.HeatRadiationTwoSurfaces; input Modelica.Units.SI.Emissivity epsilon1 "Long-wave emission coefficient of surface 1"; end HeatRadiationTwoEnclosedSurfaces;