You can apparently use very thin layers, I have entered roof
membrane thicknesses. All materials get divided into 10 layers.
That said, there can be problems with thickness. I had the same insulation
material with several thicknesses for a model, but one of the thicknesses
crashed the simulation. I had to change the material properties and
thickness to make things work. There also seems to be some issue with
thin, impermeable layers that I have not fully resolved in my models. One
gets a repetitive error about calculating humidity greater than 100% in these
assemblies.
Ned
Lyon, P.E. (MA)
Staff Consultant
SIMPSON
GUMPERTZ & HEGER
781.907.9000 main
781.907.9350 direct
781.907.9009 fax
www.sgh.com
From:
EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On
Behalf Of fransalinas2004
Sent: Wednesday, September 01, 2010 7:07 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] HAMT and thin layers
Dear all,
Reading the documentation, it is not clear to me how the cells in HAMT
simulation deal with very thin layers such as films or membranes. What is the
thinnest material layer I can input safely in this kind of simulation?
Thanks,
Fran
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