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[EnergyPlus_Support] Re: Air Cooled Condenser Inlet Temperature below 0C
Thanks, Richard.
Ah, OK. So it's basically reporting the added heating load of the zone resulting from ventilation.
I have to say, without hearing it from someone in the "know", this would have puzzled me for a long time. Here's the definition for Cooling Coil Sensible Cooling Rate: "This field reports the dry air sensible heat extraction rate of the fan coil unit from the zone it is
serving in Watts..."
If I'm to understand you correctly, it's not reporting the cooling coil removing the heat; rather, the "coolness" passing by the cooling coil on its way to the zone.
Liam
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad <RRaustad@...> wrote:
>
> Where do you think that outdoor air is going?
>
> Zone/Sys Sensible Cooling Rate [W](Hourly) shows you what is reaching the zone, and
>
>
> Fan Coil Sensible Cooling Rate[W] shows you what the overall "zone" sensible cooling rate of the fan coil is, coil operating or not.
>
>
> On 3/22/2012 11:00 AM, Liam O'Brien wrote:
> > Are you referring to outdoor air? I need the supply fan to run fairly continuously to supply outdoor air. And my cool water loop pump is off for the winter.
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad<RRaustad@> wrote:
> >> Your fan coil is using continuous fan operation and blowing cold air
> >> into the zone.
> >>
> >> On 3/22/2012 10:46 AM, Liam O'Brien wrote:
> >>> Thanks, Jim. Good call. Got that fixed. I was trying to cool my zone in the dead of winter. This is not very realistic for Toronto...for now!
> >>>
> >>> New question to the group: Even on the coldest of days (~ -15C), my "Zone/Sys Sensible Cooling Rate [W](Hourly)" and "Fan Coil Sensible Cooling Rate[W]" are non-zero (and pretty high at 1-2 kW for a medium-sized zone), despite the fact that the chiller electrical load is 0W. What's the meaning of this?
> >>>
> >>> Thanks in advance,
> >>>
> >>> Liam O'Brien
> >>>
> >>> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jim Dirkes"<jim@> wrote:
> >>>> Liam,
> >>>>
> >>>> Essentially the same problem as " frost/freeze error", discussed earlier
> >>>> today
> >>>>
> >>>>
> >>>>
> >>>> The Building Performance Team
> >>>> James V. Dirkes II, P.E., BEMP , LEED AP
> >>>> 1631 Acacia Drive NW
> >>>> Grand Rapids, MI 49504
> >>>> 616 450 8653
> >>>>
> >>>>
> >>>>
> >>>> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> >>>> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Liam O'Brien
> >>>> Sent: Tuesday, March 20, 2012 12:51 PM
> >>>> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> >>>> Subject: [EnergyPlus_Support] Air Cooled Condenser Inlet Temperature below
> >>>> 0C
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> Hi All,
> >>>>
> >>>> I've got DOAS with Fan Coil units serving each zone. I'm getting this error
> >>>> message for many time steps during the year for my Toronto building:
> >>>>
> >>>> ** Warning ** ElectricEIRChillerModel - CHILLER:ELECTRIC:EIR "MAIN CHILLER"
> >>>> - Air Cooled Condenser Inlet Temperature below 0C.
> >>>>
> >>>> Any thoughts?
> >>>>
> >>>> Thanks,
> >>>> Liam
> >>>>
> >>>
> >>> ------------------------------------
> >>>
> >>> Primary EnergyPlus support is found at:
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> >>>
> >>> The primary EnergyPlus web site is found at:
> >>> http://www.energyplus.gov
> >>>
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> >>>
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> >>>
> >>>
> >>>
> >>>
> >> --
> >> 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
> >>
> >
> >
> >
> > ------------------------------------
> >
> > Primary EnergyPlus support is found at:
> > http://energyplus.helpserve.com or send a message to energyplus-support@...
> >
> > 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 currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
> >
> > EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
> > Yahoo! Groups Links
> >
> >
> >
> >
>
> --
> 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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