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[EnergyPlus_Support] Re: More than one supply plenum
Is it really possible for return plenums to be in parallel?
I'm modelling a system where the last two return plenums must be in
parallel, but it gives an error:
The air first goes to a splitter to 4 different zones, then the air
of the 4 zones goes to a return plenum. After that the air of this
return plenum has to go to 2 other return plenums (in parallel). I
have done that by placing a splitter after the first return plenum
and a mixer after te last two return plenums, but this doesn't seems
the right way because it gives an error about the splitter and mixer
inlet and outlet nodes. (I think it isn't possible to connect a
return plenum with a slitter or mixer in energy plus)
How is it possible to let the air split up to 2 return plenums? (and
to let it come together again)?
thanks,
Nina.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte"
<mjwitte@...> wrote:
>
> Return plenums are much more flexible and may be in parallel or in
> series. A return plenum can have multiple inlets and a single
> outlet. The temperature impacts on the plenum zones are lagged by
> one zone timestep for each level of plenum.
>
> The return air flow must originate in a zone which has an air loop
> supply inlet. This supply flow, less any exhaust from that zone,
> establishes the return air flow rate. A return plenum can receive
> one or more return flows (either directly from zones or from other
> return plenums) and pass the total flow through it's outlet to
> another plenum or to a zone mixer or to the air loop return inlet.
>
> Mike
>
>
> On 7 Aug 2003, at 23:57, kirbyschapman wrote:
>
> > Can one zone feed to other zones? In other words, can i force the
air
> > to flow through successive zones, as in from one end of a
building to
> > the other?
> >
> > Thanks for the help.
> >
> > Kirby
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte"
> > <mjwitte@g...> wrote:
> > > Only one supply plenum is allowed per air loop.
> > >
> > > Mike
> > >
> > >
> > >
> > > On 7 Aug 2003, at 20:09, kirbyschapman wrote:
> > >
> > > > Hello, Folks.
> > > >
> > > > I'm attempting to use four separate supply plenums. The
caveat
> > is that
> > > > the first plenum serves a couple of zones, plus the second
> > plenum. The
> > > > second plenum serves one zone and the third plenum. Finally,
the
> > third
> > > > plenum serves a final zone.
> > > >
> > > > In doing so, I used a splitter from Plenum 1 to feed the two
> > zones and
> > > > Plenum 2. Then another splitter from Plenum 2 to a zone and
> > plenum 3.
> > > >
> > > > This didn't work, and in fact the program crashed (I only ran
it
> > with
> > > > the first two zones).
> > > >
> > > > Is this the correct way to tackle a situation like this?
> > > >
> > > > Thanks much
> > > >
> > > > Kirby
> > > >
> > > >
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