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Re: [EnergyPlus_Support] Electricity:Plan Problem
These comments reference file "~LG test20 singlepump 01.idf". I presume that
similar issues exist in the other input file.
1. This run is for the months of September and October, but all systems are
scheduled off for October thru March (see SCHEDULE, FCU/AHU Sched).
2. The cooling coils are not operating, because the control nodes are
incorrect. All water coils are controlled at the water inlet node. In the
CONTROLLER:SIMPLE objects, the "Actuator Node" must be the cooling coil water
*inlet* node, not the outlet node. In the FAN COIL UNIT:4 PIPE objects, the
"cold water control node" must be the cooling coil water *inlet* node, not the
outlet node.
3. Cooling availability is shut off in October thru March, in both the
cooling coils and in the zone thermostat, but the zones are overheating in
October which indicates a need for cooling for more of the year.
Mike
On 12 Nov 2004, at 11:56, wing sun lee wrote:
>
> Hi,
>
> Based on your suggestions, I find that chillers and pumps are have zero value.
> It is difficult for me to find what happen in my idf as I am not professional.
> Would you please help me. Becase of there have time limit for me to complete the
> simulation by 17/11/04.
>
> Thanks,
>
> SAMLEE
>
>
>
> "Michael J. Witte" <mjwitte@xxxxxxxx> wrote:
> In the mtd output file, ~LG test20 singlepump 01.mtd, there is a section which
> lists all of the components on each meter
>
> For Meter=Electricity:Plant [J], contents are:
> CHILLER3(SYS_2):Chiller Electric Consumption
> CHILLER4(SYS_2):Chiller Electric Consumption
> CHILLER5(SYS_2):Chiller Electric Consumption
> CHILLER6(SYS_2):Chiller Electric Consumption
> HW CIRC PUMP:Pump Electric Consumption
> CWP4(SYS_2):Pump Electric Consumption
>
> This tells you that chillers and pumps are on the Electricity:Plant meter.
> Create a report variable command for each of these and redo the run. For
> example:
>
> Report Variable,
> *, !- Key_Value
> Chiller Electric Consumption, !- Variable_Name
> hourly; !- Reporting_Frequency
>
> Report Variable,
> *, !- Key_Value
> Pump Electric Consumption, !- Variable_Name
> hourly; !- Reporting_Frequency
>
> My guess is that you will find that one or both of the pumps is running all the
> time.
>
> Mike
>
>
> On 11 Nov 2004, at 22:31, wing sun lee wrote:
>
> >
> > Hi,
> >
> > Sorry, I don't know how to do it. Would you mind teaching me or highlight
> > which part is faulty.
> >
> > Regards,
> >
> > SAMLEE
> >
> >
> > "Michael J. Witte" <mjwitte@xxxxxxxx> wrote:
> > Have you reported every variable that is part of Electricity:Plant? Which
> > ones are consuming power?
> >
> > You cannot draw all of your system in HVAC diagram in a single run due to a
> > suspected bug in HVAC diagram. To get a drawing of all of the fancoil units,
> > delete all AIR PRIMARY LOOPs and associated components and re-run. All of the
> > fan coil system should draw.
> >
> > Mike
> >
> > On 9 Nov 2004, at 1:15, wing sun lee wrote:
> >
> > >
> > > Hi
> > >
> > > Based on your previous comments for the Electricity:Plan, I have checked the
> > > schedule for the chillers and pumps. All schedules seem to be corrected.
> > > Could you please help me to check that.
> > >
> > > Beside, for the HVAC diagram, I still don't understanding how to display the
> > > rest of the FCUs objects.
> > >
> > > Please help me.
> > >
> > > SAMLEE
> > >
> > > Encl.
> > >
> > >
> > >
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> > ========================================================
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> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support
> EnergyPlus-Support@xxxxxxxx
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