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Re: [EnergyPlus_Support] Convergence failure
Yes the new cooling coil , ie Coil:Water :Cooling has inputs which are simply the cooling load, and mass flow rates , and not the coil geometry. So you should be able to use that very easily.
There is no need for geometry such as fin parameters etc.
liu simeng <simon0176@xxxxxxxxxxx> wrote:
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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Thanks
Rahul Chillar
Grad Student
Building Systems lab
Univ Of Illinois Urbana Champaign
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