Re: [EnergyPlus_Support] connected surface warning and CSV File schedule

["Michael J. Witte" <mjwitte@xxxxxxxx>]

1.  EnergyPlus links the outside surface temperature for interzone surfaces.  
For example, assume Surface A and Surface B are linked.  When Surface A is 
simulated, its outside surface temperature is set to be the inside surface 
temperature of Surface B.  When Surface B is simulated, its outside temperature 
is the inside surface temperature of Surface A.  Because the link is made by 
temperature and not by heat flux, mismatched areas can result in violating 
conservation of energy.  Mismatched tilt or azimuth will not cause an error if 
the areas match.  However, these error messages are generated, because it may 
indicate the the wrong pair of surfaces have been linked to each other.

2.  A good suggestion.  I will add it to the wish list.

Mike


On 16 Sep 2006 at 0:26, Tobias Maile wrote:

> Hi guys,
>   
>   I have two questions:
>   
>  1) EnergyPlus issues a warning if two connected internal surfaces do not have
> the same area (I do understand that this should not be the case for most of
> the surfaces in a building), I was just wondering if someone could tell me
> what actually happens within EnergyPlus in this case? Does it take the average
> surface area for the heat transfer calculation? And related, what happens if
> one of the surfaces has a different tilt than the other one? 
>   
>  2) I really like the SCHEDULE:FILE:COMMA object that was recently
> implemented. Unfortunately most of the CSV files I have and would like to
> import in this way are not hourly. Is there any plan to extend this object to
> account for more flexible intervals? How big of an effort would it be?
>   
>   Thanks for your insights.
>   
>   Tobias
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
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> 
> 
> 


========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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