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Re: [EnergyPlus_Support] Convergence failure
The new COIL:Water:Cooling is included in the 1.2.1 version released early
last month.
It is documented in the Input Output Reference on page 688 (718 of the PDF)
and in
the Engineering Documentation on page 325 (page 363 of the PDF).
"liu simeng"
<simon0176@hotmail. To: EnergyPlus_Support@xxxxxxxxxxxxxxx
com> cc:
Subject: Re: [EnergyPlus_Support] Convergence failure
11/03/2004 10:40 PM
Please respond to
EnergyPlus_Support
Where is the new COIL:Water:Cooling, is it included in V1.2?
In fact, I cannot find some specification about the coil, such as
parameters of fin. Is there any way to figure out a proper size of coil
with just the estimation of cooling load?
Thanks!
>From: "Michael J. Witte" <mjwitte@xxxxxxxx>
>Reply-To: EnergyPlus_Support@xxxxxxxxxxxxxxx
>To: EnergyPlus_Support@xxxxxxxxxxxxxxx
>Subject: Re: [EnergyPlus_Support] Convergence failure
>Date: Mon, 25 Oct 2004 11:43:07 -0500
>
>This may be the result of a mismatch in the coil sizing inputs. Make sure
that
>the coil UA and water flow rate are consistent with the air loop flow rate
and
>load.
>
>Note that COIL:Water:SimpleCooling will be eliminated in the next release
of
>EnergyPlus, because there are some deficiencies in the model. It is
highly
>recommended that you use one of the other chilled water coil models,
>COIL:Water:DetailedFlatCooling or the new COIL:Water:Cooling.
>
>Mike
>
>
>On 21 Oct 2004, at 6:08, simon0176us wrote:
>
> >
> >
> > My model with simple cooling coil always show following warning
> > message:
> >
> > Convergence failure Simple cooling coil, iteration limit exceeded
> >
> > I tried the auto size and use the recommended UA value, but it didn't
> > help much. can anyone help me get rid off this message?
> >
> >
> >
> >
> >
> >
> >
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> >
> > The group web site is:
> > http://groups.yahoo.com/group/EnergyPlus_Support/
> >
> > Attachments are not allowed -- please post any files to the appropriate
folder
> > in the Files area of the Support Web Site.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>========================================================
>Michael J. Witte, GARD Analytics, Inc.
>EnergyPlus Testing and Support
>EnergyPlus-Support@xxxxxxxx
>
>
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