I’m usign Grasshopper Dragonfly plugin to simulate the urban heat island in a Sao Paulo (Brazil) Urban District.
I’m setting buildings envelopes by using the component “edit typology envelope”.
In this component I have to parametrize window SHGC, wall and roof albedo.
Now, I’m confusing about the influence of these parameters on the simulated Air Temperature, Mean Radiant Temperature and Surface Temperature of outdoor spaces.
My doubts are:
-if the value of window SHGC is increased (higher trasmission), the buildings surfaces temperatures increase too while the external temperature decrease due to the subtracted heat, right?
- if the albedo of walls and roofs is increased (higher reflection), the building surfaces temperatures decrease while the external air temperature increase due to the reflected radiation dumped into outddor spaces, right?
Thank you in advance.