[EnergyPlus_Support] Re: U value input

["eric_zhou1223" <eric_zhou1223@xxxxxxxxx>]

Thanks a lot, Brent. I used the tool to output two files, the only 
difference between them being location and perhaps system type. Yet 
one of them can report "U-Factor with Film " and "U-Factor no Film", 
another can only report "U-Factor no Film".  Would you please give 
me hint on this? Thanks again. I uploaded two files package named "U 
factor".

Eric













--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" 
<brent_griffith@...> wrote:
>
> Not directly.  E+ uses layer-by-layer descriptions and targeting a
> specific U-value often requires iteration.  Tune the material 
properties
> of an insulation layer inside the construction.  Be careful about 
the
> surface film coefficients when setting targets...  (E+ can report 
them
> with or without, but Standards aren't always so clear).  If the 
Standard
> is 90.1, you could try constructions out of an input file from the
> EnergyPlus Example File Generator. 
> 
>  
> 
> ________________________________
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of 
eric_zhou1223
> Sent: Thursday, January 17, 2008 12:27 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] U value input
> 
>  
> 
> Hi all,
> 
> Is there a simple way to define an U value for a wall,which is 
made of 
> several layers, like in eQuest? Given that I need to set the wall 
U-
> value to a standard value.
> 
> Eric
> 
>  
> 
> 
> 
> [Non-text portions of this message have been removed]
>




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