Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |  |
To answer the original questions
Does Slab still work with the current version of Energyplus?
Yes. The error messages indicate that you were running an EnergyPlus idf file with the Slab program. Running Slab alone requires a different input file with just Slab objects. In the EnergyPlus install folder, see PreProcess\GrndTempCalc\SlabExample.idf.
Just want to know if I should move on to something else.
Yes. Slab is useful, but it gives you static monthly temperatures as the outside boundary condition for the floor slab based on the specified monthly average indoor air temperatures in the slab input. If the EnergyPlus model results in significantly different indoor air temperatures, then the floor heat transfer will be wrong.
There are two newer integrated foundation heat transfer models available directly in EnergyPlus, each with their own strengths and limitations. See Site:GroundDomain:Slab and Foundation:Kiva.
