Excessive solar gains

RE: Excessive solar gains

Shane Regan — Fri, 22 Jun 2018 11:15:17 GMT

Hi Craig, thanks for clarifying! To model window openings in your DDB calc's you would need to incorporate them into your air change rate figures in the room data.

Alternatively, more complex openable window simulations can be carried out by using Simulator, in which you can specify window opening strategies through Flowpaths in CAD Input.

RE: Excessive solar gains

Craig Methven — Fri, 22 Jun 2018 10:17:41 GMT

Hi Shane

Many thanks for the prompt reply.

WRT - "tick the operable box for the windows"? look at your second image just beside window type there is a tick box for operable windows.

It made a very minor change to my heat gains when ticked.

I was hoping the gain would account for manual opening of windows.

Regards

Craig

RE: Excessive solar gains

Shane Regan — Fri, 22 Jun 2018 08:33:01 GMT

Hi Craig,

Blinds are modelled in the Glazing Data menu - please find further details here.

To take blinds into account in Design Database calc's they will need to be incorporated into your Solar Gain Factors for your glazing. Your glazing manufacturer should be able to specify the exact figures for you. Alternatively you can calculate them yourself according to this document.

Could you please clarify what you mean by "tick the operable box for the windows"? Are you referring to the below option?

If so, this option is to include any fins included in your Window surfaces: