Hi @milog ,
I’m sorry that I’m so late in getting back to this but I finally have the script for you that does the gradual opening with simple ventilation objects. You can find it all in this Grasshopper sample:
SimpleVent_gradually_opening_windows_and_night.gh (110.8 KB)
Essentially, you set up your Pollination/Honeybee model exactly as you did before by assigning an operable area fraction to your windows for the maximum amount and setting the controls for 26C:
But this time, you do NOT pass the model through the HB Airflow Network component and instead just write out the OSM. Then, I have a little Python component that will edit the simple ventilation objects in the OpenStudio Model and re-save it:
The Python script essentially takes the model that only has one ZoneVentilation:WindandStackOpenArea object per window:
… and adds several more ZoneVentilation:WindandStackOpenArea objects to give you the gradual opening behavior:
It also adds a ZoneVentilation:WindandStackOpenArea object at the end for each window that controls the night time opening with a special schedule and the controls I outlined in the previous post.
Let me know if you have any questions, @milog . Hopefully, this gives you everything that you need for the CIBSE TM59 standard now.