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[EnergyPlus_Support] Re: Earth tube and AHU with EMS
Great answer, thanks.
Florent
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad <RRaustad@...> wrote:
>
> I see that now, it simply adds a heat gain or loss to the zone. So you
> would have to psychormetric routines to calculate the exiting WB
> temperature of the earth tube knowing the inlet T and w, the total
> (sensible) heat gain or loss, and calculate a new outlet T. Then using
> the inlet w as the outlet w (w should not change through the earth tube)
> calculate the exiting WB using outlet T and inlet w.
>
> florentfabre wrote:
> >
> > It was my first idea but there isn't system node for the earth tube
> >
> > Florent
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>, Richard Raustad
> > <RRaustad@> wrote:
> > >
> > > Try using the node report variable for WB (see rdd file) at the outlet
> > > node of the earth tube
> > >
> > > System Node Wetbulb Temp
> > >
> > > florentfabre wrote:
> > > >
> > > > Hi All,
> > > >
> > > > With an EMS routine I can change the Outdoor Air System Node of an
> > AHU
> > > > with the outlet temperature of an earth tube (calculate with a
> > > > previous simulation).
> > > > For this I need to know the earth tube outlet wet bulb temperature,
> > > > where can I find this with the ZoneEarthTube Object ?
> > > >
> > > > Thank you,
> > > > Florent
> > > >
> > > >
> > >
> > > --
> > > Richard A. Raustad
> > > Senior Research Engineer
> > > Florida Solar Energy Center
> > > University of Central Florida
> > > 1679 Clearlake Road
> > > Cocoa, FL 32922-5703
> > > Phone: (321) 638-1454
> > > Fax: (321) 638-1439 or 1010
> > > Visit our web site at: http://www.fsec.ucf.edu <http://www.fsec.ucf.edu>
> > >
> > > UCF - From Promise to Prominence: Celebrating 40 Years
> > >
> >
> >
>
> --
> Richard A. Raustad
> Senior Research Engineer
> Florida Solar Energy Center
> University of Central Florida
> 1679 Clearlake Road
> Cocoa, FL 32922-5703
> Phone: (321) 638-1454
> Fax: (321) 638-1439 or 1010
> Visit our web site at: http://www.fsec.ucf.edu
>
> UCF - From Promise to Prominence: Celebrating 40 Years
>
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