Hi there,

does anyone have experience in setting the heat transfer algorithm of selected constructions? According to the IO-Manual, I can set the global behaviour via

HeatBalanceAlgorithm, ConductionTransferFunction, 200; !- Algorithm, Surface Temperature Upper Limit {C}

and can then change this for selected constructions like this,

SurfaceProperty:HeatTransferAlgorithm:Construction, BO05Override, ConductionFiniteDifference, BO05; !- Name, Algorithm, Construction Name

Seems easy & straightforward. However, I then get a fatal error when trying to run the simulation telling me that "InitialInitHeatBalFiniteDiff: Found Material that is too thin and/or too highly conductive ..." which gives a material name that is not part of the construction addressed.

Any ideas welcome. Best Achim

OS: macOS; EnergyPlus, Version 22.1.0-43b09606e2

Hi there,

does anyone have experience in setting the heat transfer algorithm of selected constructions? According to the IO-Manual, I can set the global behaviour via

HeatBalanceAlgorithm, ConductionTransferFunction, 200; !- Algorithm, Surface Temperature Upper Limit {C}

and can then change this for selected constructions like this,

SurfaceProperty:HeatTransferAlgorithm:Construction, BO05Override, ConductionFiniteDifference, BO05; !- Name, Algorithm, Construction Name

Seems easy & straightforward. However, I then get a fatal error when trying to run the simulation telling me that "InitialInitHeatBalFiniteDiff: Found Material that is too thin and/or too highly conductive ..." which gives a material name that is not part of the construction addressed.

Any ideas welcome. Best Achim

Hi there,

does anyone have experience in setting the heat transfer algorithm of selected constructions? According to the IO-Manual, I can set the global behaviour via

HeatBalanceAlgorithm, ConductionTransferFunction, 200; !- Algorithm, Surface Temperature Upper Limit {C}

and can then change this for selected constructions surfaces like this,

SurfaceProperty:HeatTransferAlgorithm:Construction, BO05Override, ConductionFiniteDifference, BO05; !- Name, Algorithm, Construction Name

Seems easy & straightforward. However, I then get a fatal error when trying to run the simulation telling me that "InitialInitHeatBalFiniteDiff: Found Material that is too thin and/or too highly conductive ..." which gives a material name that is not part of the construction addressed.

Any ideas welcome. Best Achim

Hi there,

does anyone have experience in setting the heat transfer algorithm of selected constructions? surfaces? According to the IO-Manual, I can set the global behaviour via

HeatBalanceAlgorithm, ConductionTransferFunction, 200; !- Algorithm, Surface Temperature Upper Limit {C}

and can then change this for selected surfaces like this,

SurfaceProperty:HeatTransferAlgorithm:Construction, BO05Override, ConductionFiniteDifference, BO05; !- Name, Algorithm, Construction Name

Seems easy & straightforward. However, I then get a fatal error when trying to run the simulation telling me that "InitialInitHeatBalFiniteDiff: Found Material that is too thin and/or too highly conductive ..." which gives a material name that is not part of the construction addressed.

Any ideas welcome. Best Achim