Artemi, I would think that your approach of writing an external model that couples with Type56 in order to assess the impact of your wetted roof is the correct one. I would imagine that the model would couple to the building using a BOUNRARY wall much like the user-written Type204 phase change material wall or the TESS Library Ground Coupling components do. I am not aware of any way to use standard components to model the evaporatively cooled roof and couple it to the building. I am also not aware of whether anyone has tried running TRNSYS on Windows 7. I am personally waiting for Windows 7 to be out for at least 3 months before I try it!! Kind regards, david
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