Re: [EnergyPlus_Support] Re: error running Chiller plant

On Wed, Jul 4, 2012 at 1:01 PM, Javed Iqbal <eee.javed@xxxxxxxxx> wrote:

Hi,

I am using Constant Primary and Variable secondary chilled water pump. Condenser water pump is also variable but hot water pump is constant speed. All fields are autosize..

thanks

On Wed, Jul 4, 2012 at 10:52 AM, MÃ¡rio <mneves32@xxxxxxxxx> wrote:

Hello,

What kind of pumps, are you using?
What is your pump head set to?
How are you controling the pump operation?

Sometimes when I get these kind of errors in the cooling plant it´s because of the pumps.

Best

MN

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Edwin Lee <leeed2001@...> wrote:
>
> Are you getting any other errors or warnings? Looks like the loop is out
> of control. Some more information on your loop is really needed to
> identify the problem.
>
> Edwin
>
> On Wed, Jul 4, 2012 at 10:37 AM, Javed Iqbal <eee.javed@...> wrote:
>
> > **

> >
> >
> > Hi All,
> >
> > I am getting following warning.What could be the possible reason? I am
> > trying to model central plant with VAV.
> >
> > Thanks!
> >
> > ** Warning ** GetDensityGlycol: Temperature out of range (too high) for
> > fluid density
> > ************* ** ~~~ ** This error occurred 106213 total times;
> > ************* ** ~~~ ** during Warmup 0 times;
> > ************* ** ~~~ ** during Sizing 0 times.
> > ************* ** ~~~ ** Max=173.136908 {C} Min=100.001832 {C}
> > *************
> > ************* ** Warning ** Plant loop exceeding upper temperature
> > limit, PlantLoop="HOT WATER LOOP HOT WATER LOOP"
> > ************* ** ~~~ ** This error occurred 95517 total times;
> > ************* ** ~~~ ** during Warmup 0 times;
> > ************* ** ~~~ ** during Sizing 0 times.
> > ************* ** ~~~ ** Max=173.15264
> > *************
> > ************* ** Warning ** GetSpecificHeatGlycol: Temperature out of
> > range (too high) for fluid specific heat
> > ************* ** ~~~ ** This error occurred 3928457 total times;
> > ************* ** ~~~ ** during Warmup 0 times;
> > ************* ** ~~~ ** during Sizing 0 times.
> > ************* ** ~~~ ** Max=173.195998 {C} Min=125.004998 {C}
> > *************
> > ************* ** Warning ** CoolingTower:VariableSpeed "MAIN TOWER" -
> > Tower approach temperature is out of range error continues...
> > ************* ** ~~~ ** This error occurred 21 total times;
> > ************* ** ~~~ ** during Warmup 0 times;
> > ************* ** ~~~ ** during Sizing 0 times.
> > ************* ** ~~~ ** Max=1.093516 Min=0.36124
> > --
> >
> >
> > Javed Iqbal, LEED AP, CEA
> > Energy Analyst
> >
> >
> >
> >
> >
> > --
> >
> >
> > Javed Iqbal, LEED AP, CEA
> > Energy Analyst
> >
> >
> >
> >
>
>
>
> --
> Edwin Lee
> Doctoral Candidate, Oklahoma State University
> ASHRAE Student Member, *Former* ASHRAE OSU Student Branch President
> Office: ATRC 303: 405-744-3727
>

--

Javed Iqbal, LEED AP, CEA

Energy Analyst

Edwin Lee

Doctoral Candidate, Oklahoma State University

ASHRAE Student Member, Former ASHRAE OSU Student Branch President

Office: ATRC 303: 405-744-3727