Using pyWinCalc

1

Dear forum,

is it possible to use pyWinCalc to create “glass” or “glass” with “BRTDfunc” material in Radiance either directly or by using/converting some of the result outputs?

Thank you

2

You can use frads for this, which uses pywincalc on the back end:

import frads as fr

layer1_fpath = "igsdb_product_364.json"
layer2_fpath = "igsdb_product_7406.json"

gs = fr.create_glazing_system(
    name="system1",
    layers=[layer1_fpath, layer2_fpath],
)
# output brtdfunc if no shading
gs.get_brtdfunc()
# save to xml
gs.to_xml("out.xml")

See here for more details.

3

Thank you so much Taoning, I really appreciate it!
Please pardon my ignorance but I have 2 follow-up questions.

  1. Where can I found the repository of json files or/and can I create a product description in json format using other available application?
  2. I am not familiar with using/importing “xml” files in Radiance simulation. Would you mind sharing an implementation line with me?

Thank you!

4

All the glazing data can be found at igsdb.lbl.gov

xml is useful when you want to run three phase methods. Phase method tutorial can be found here. To run it in frads you can find it here.

5

Thanks.
Btw, I tried to go to igsdb.lbl.gov but it won’t let me sign up. It says that sign up is closed.

6

Hi vbajic
To access the glazing data, message [email protected].

7

Thank you very much!!!