I need some help here and believe this is a perfect place. I am trying to generate default constructions for gbXML.
Everything is fine with opaque materials but I need confirmation with gas materials.
This is my input data… in this case, I have a gas type, thickness and convection coefficient (heat transfer coefficient).
when I generate gbXML I can have two option
- use R-value
<Material id="material-floor2"> <Name>Air 50mm floor</Name> <Description>Air space</Description> <R-value unit="SquareMeterKPerW">0.10</R-value> </Material>
- use detail
<Material id="material-floor2"> <Name>Air 50mm floor</Name> <Description>Air space</Description> <Thickness>0.05</Thickness> <Conductivity unit="WPerMeterK">0.187</Conductivity> <Density unit="KgPerCubicM">1.2</Density> <SpecificHeat unit="JPerKgK">1005</SpecificHeat> </Material>
not sure how to get from my inputs either for method 1 or 2?
any help would be appreciated