THERM - Control over BC Radiation Model

Hi Chris,

I am Jonny’s colleague. Thanks a lot for your reply! It would be very helpful if Therm users could directly assign Radiation model through Honeybee.

Regarding your questions,

  1. Yes. According to NFRC(National Fenestration Rating Council) manual, the exterior is always assigned to “Black body radiation model”.

  2. I will assume the view factor is 1. Also, the view factor is defined as 1 in the build-in boundary condition library from Therm.

  3. I have never used the “Constant Heat Flux” before.

I attached screenshot from Therm for “NFRC Exterior Boundary Conditions” and “Interior Thermally Broken Frame Boundary Conditions” here, hope the information could help a little bit.

Thanks again,

Grace