[TRNSYS-users] TRNflow large opening, TRNbuil open window

[Adrien JEZEQUEL - ITF]

Dear Kevin,

Maybe you can try to define two window types in your TRNBUILD model :

  -  a non-glazing one which models your large opening for the night
  -  a normal glazing one which models the window for the day (same 
areas as previous window)

Be careful to define correct outwall and window areas.

For the night, your may have to consider your glazing window as a window 
with additionnal shading, to obtain the same thermal resistance as your 
outwall by adding an external thermal resistance (window type manager - 
optional properties of shading devices). In the same time, your non 
glazing window is opened (ie no optional properties of shading devices 
defined). In that way, your glazing window will be treated as an outwall 
(with the same thermal resistance as your outwall) and your non glazing 
one as an opening.

For the day, you may have to consider your non-glazing  window as a 
window with additionnal shading to obtain the same thermal resistance as 
your outwall by adding an external thermal resistance. In the same time, 
you will have to define a total external shading device on that window 
to keep out solar radiation. External thermal resistance of your glazing 
window is null during the day.

Use schedules or inputs to define those profiles.

I think this will work fine. Someone may confirm?

Best regards,

------------------------------------------------------------------------
 
www.itf.biz <http://www.itf.biz>
www.itf.biz <http://www.itf.biz>

	Adrien JEZEQUEL
Simulations Thermiques Dynamiques
*ITF*
	87, Avenue de Chambéry
73230 St Alban Leysse
FRANCE
Phone :
Fax :
Mail:
	+33(0) 479 750 029
+33(0) 479 852 122
a.jezequel at itf.biz

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kevin maiques a écrit :
>
> Dear TRNsys-user,
>
>  
>
> I want to simulate natural night free-cooling with TRNflow.
>
> In TRNflow I have a large opening that I open the night and close the day.
>
> This large opening corresponds to a window in TRNbuil.
>
> My question is : How can I simulate a window in TRNbuild who are a 
> window the day and a space (open; no glazing) the night?
>
>  
>
> Best regards
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>   
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