[EnergyPlus_Support] Re: Disparate zones for inlet and outlet nodes for an air loop

["Elmer Morrissey" <elmofuddly@xxxxxxxxx>]

Hi Mike, 

If I conglomerate the areas into one zone, I think I can safely ignore
the degree or two difference in room temperature. However, the AHU
supplies air at a rate of 141l/s and exhausts at a rate of 204l/s (due
to the inflated exhaust rates required for toilet areas). I can't seem
to force this situation? What am I missing? Can I set the extract VAV
to always extract air at a larger rate than the supply air?

Kind regards

-Elmer



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte"
<mjwitte@g...> wrote:
>
> My apologies for the delayed response . . .
> 
> There is no easy way to model this case.
> 
> The simplest solution is to take the return air from the corridor
and forget 
> about the other flows.  If you expect those zones to be at similar 
> temperatures, this will probably be adequate from an energy use
perspective.
> 
> Another option would be to combine the corridor/lobby area with the
toilet area 
> into a single zone.  A zone can be made up of non-contiguous spaces.
> 
> Mike
> 
> On 11 Jan 2006 at 18:19, Elmer Morrissey wrote:
> 
> > One of the AHUs services a particular loop in one area and takes 
> > extract from another area. It provides ventilation air to a corridor 
> > and lobby area. However, the return loop is extracting air from three 
> > toilet areas. These areas are physically separated within the
building 
> > by 2/3 zones. Is this a problem in EnergyPlus, and do I have to 
> > conglomerate these disparate areas into one zone (this may be a 
> > problem with disparate temperature control etc)?
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...
>







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