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[EnergyPlus_Support] Re: warning about " Temperature out of range (too high) for glycol specific heat
Hi Linda,
Thank you for your response.
I also found that there is no warning message when water temperature
in hot water loop is below 0 Degree C. In this case, I use hot water
to preheat outdoor air. Then it makes sense if water is also a glycol
in EnergyPlus.
Do u think the following warning is serious or not?
** Warning ** GetSpecificHeatGlycol: Temperature is out of range (too
high) for glycol specific heat **
** ~~~ ** ..Temperature=1675.85 Occurrence info=CALGARY INT'L AB
CAN WYEC2-B-25110 WMO#=718770, 04/05 06:00 - 07:00
Maybe it is hard to answer. At least, I do not find high temperature
like that in all system nodes from excel file.
Thanks a lot.
Tj Ywh
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> water is a glycol so where ever you use water, such as when you used
> them in your
>
> HEAT EXCHANGER:HYDRONIC:FREE COOLING,
> Free Cooler, !- Name of free cooling heat exchanger
> Main Chiller, !- Controlled component name
> CHILLER:ELECTRIC:EIR, !- Controlled component type
> Free Cooling Schedule, !- Setpoint schedule name
> Free Cooler Condenser Inlet Node, !- Condenser side fluid
inlet node
> Free Cooler Condenser Outlet Node, !- Condenser side fluid
outlet node
> Free Cooler Inlet Node, !- plant side fluid inlet node
> Free Cooler Outlet Node, !- plant side fluid outlet node
> water, !- Condenser loop fluid name (water,
> ethylene glycol, etc.)
> water, !- plant loop fluid name (water,
> ethylene glycol, etc.)
> DRYBULB, !- Free cooling control mode (outside
> wetbulb, outside drybulb, setpoint schedule)
> Free Cooling Schedule, !- Heat Exchanger Setpoint schedule
> name (deprecated)
> UA-EFFECTIVENESS, !- Heat exchange mode
> 150000, !- UA {W/K}
> 0.0173, !- condenser side flow rate {m3/s}
> 0.0113, !- plant side flow rate {m3/s}
> Main Chiller Cnd Inlet, !- Controlled equipment condenser side
inlet node
> Main Chiller Cnd Outlet, !- Controlled equipment condenser side
> outlet node
> Main Chiller ChW Inlet, !- Controlled equipment plant side
inlet node
> Main Chiller ChW Outlet; !- Controlled equipment plant side
outlet node
>
> it uses the fluid properties for water from the glycol set.
>
> Linda
>
> At 08:35 AM 9/5/2007, tjutw wrote:
>
> >Hi Linda,
> >
> >I do not find related information from EnergyPlus documents.
> >Would you please tell me which models automatically include glycol and
> >water?
> >
> >Thanks.
> >
> >Tj Ywh
> >
> >--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Linda Lawrie" <linda@>
> >wrote:
> > >
> > > Several models automatically include the "glycol" "water" in their
> > > calculations. If you send in your input file, perhaps we can help
> > > more.
> > >
> > > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "tjutw" <tjutw@> wrote:
> > > > ** Warning ** GetSpecificHeatGlycol: Temperature is out of range
> > > (too
> > > > high) for glycol specific heat **
> > > > ** ~~~ ** ..Temperature=1675.85 Occurrence info=CALGARY
INT'L AB
> > > > CAN WYEC2-B-25110 WMO#=718770, 04/05 06:00 - 07:00
> > > >
> > > > ************* ** Warning ** GetSpecificHeatGlycol:
Temperature out
> > > > of range (too high) for glycol specific heat
> > > > ************* ** ~~~ ** This error occurred 4318 times.
> > >
> > > Linda
> > >
> >
> >
> >
> >
> >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.
> >
> >EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf
> >under the Documentation link and press the "search" button.
> >
> >Yahoo! Groups Links
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>
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