Modelling of Double Skin Facades in HB

grasshopper honeybee-legacy
2

Hello All,

I have looked into the example below:

http://hydrashare.github.io/hydra/viewer?owner=chriswmackey&fork=hydra_2&id=Vented_Double-Skin_Facade&slide=0&scale=1&offset=20.00615749749352,-3.8445581267411058

I have a few questions which also include some more generic ones not strictly related to a double skin facade:

  • Why would we use ‘Air Walls’ in the component ‘solve adjacencies’? This removes the internal glass wall and indeed looking at the cooling loads we get very high values (I am considering the climate of Hong Kong);

  • Why is the ‘stack discharge coefficient’ set to 0.286? It is slightly different than the recommended coefficient options listed in the component;

  • Is there not a way of creating a double or triple glazed unit with argon filled cavity (e.g.the typical 90% Argon and 10% Air) using the air gap component? Are we limited to use the energy plus window material? Is the alternative to import a double glazing unit from WINDOW? Would mass be taken into account in this case?

Thanks,

Carmelo