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[EnergyPlus_Support] Re: Can two same type HVAC systems be modelled in one zone ?
Thanks Richard. So I will model one AirloopHVAC object with same capability for two.
--
Takashi Toi
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad <RRaustad@...> wrote:
>
> You can not have two AirloopHVAC objects serving the same zone since
> only 1 return node is allowed per zone. And placing the heat pumps in
> series in a single AirloopHVAC object will probably not satisfy your
> needs, although you could try it.
>
> You can also have 2 systems in the same zone by using the ZoneHVAC
> object. See the WindowAC or WSHP_DOAS example files.
>
> On 2/4/2011 8:06 AM, Richard Raustad wrote:
> >
> > This probably means that you did not list the heat pump in the
> > AirloopHVAC branch list. Follow the "Branch List Name" in the
> > AirloopHVAC object to find what is defined for that air loop.
> >
> > AirLoopHVAC,
> > Air Loop Branches, !- Branch List Name
> >
> > BranchList,
> > Air Loop Branches, !- Name
> > Air Loop Main Branch; !- Branch 1 Name
> >
> > Branch,
> > Air Loop Main Branch, !- Name
> > 1.7, !- Maximum Flow Rate {m3/s}
> > , !- Pressure Drop Curve Name
> > AirLoopHVAC:OutdoorAirSystem, !- Component 1 Object Type
> > OA Sys 1, !- Component 1 Name
> > Outdoor Air Mixer Inlet Node, !- Component 1 Inlet Node Name
> > Mixed Air Node, !- Component 1 Outlet Node Name
> > PASSIVE, !- Component 1 Branch Control Type
> > AirLoopHVAC:UnitaryHeatPump:AirToAir, !- Component 2 Object Type
> > DXAC Heat Pump 1, !- Component 2 Name
> > Mixed Air Node, !- Component 2 Inlet Node Name
> > Air Loop Outlet Node, !- Component 2 Outlet Node Name
> > ACTIVE; !- Component 2 Branch Control Type
> >
> >
> > On 2/4/2011 5:41 AM, Takashi_Toi wrote:
> >
> >> I want to model 2 UnitaryHeatPump:AirToAir in one zone.
> >> I set ZoneHVAC:EquipmentList, ZoneEquipment1 for first
> >> UnitaryHeatPump, ZoneEquipment2 for second UnitaryHeatPump.
> >> But I had a severe error
> >> " ** Severe ** AirLoopHVAC:UnitaryHeatPump:AirToAir = 1-HEAT_PUMP
> >> ** Severe ** Did not find correct AirLoopHVAC."
> >>
> >> I model a UnitaryHeatPump:AirToAir and a FanCoil in one zone. But I
> >> had no Error.
> >>
> >
> > --
> > 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
> >
>
> --
> 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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