[EnergyPlus_Support] Re: Warning re: window multiplier > 1

["JV Dirkes II" <jvd2pe@xxxxxxx>]

Thank you!
It sounds as though load and energy usage calculations will be
accurate, but daylighting will not.  In  my case, daylighting is not a
focus of study, so the shortcut of using a multiplier is a good one.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> When you use Window multipliers, then the distribution of solar from 
> the windows will be somewhat inaccurate.  The same amount of solar 
> will enter the zone, it just won't be distributed in the most 
> accurate of places.
> 
> If you search the documentation on "window multiplier", you will find 
> some other notes:
> 
> Use of Window Multipliers
> If an exterior wall in a daylit zone has a number of identical 
> windows, the windows should be
> entered separately rather than using a window multiplier (ref: 
> Surface:HeatTransfer:Sub).
> Using a multiplier would give an incorrect illuminance calculation 
> since individual windows
> would not be positioned correctly on the wall.
> 
> 
> Linda
> 
> EnergyPlus WebSite: http://www.energyplus.gov
> Owner: EnergyPlus_Support list
> Member: EnergyPlus Development Team
> 
> 
> 
> [Non-text portions of this message have been removed]
>




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