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Re: [EnergyPlus_Support] Re: Multiple Zones for Single Heat Pump



Any reason you're not using ZoneHVAC:WaterToAirHeatPump?  Put one in each zone...

Also, how does the building operate in reality?  Does it really have heat pumps serving VAV boxes?

--
Karen

On Mon, Jan 23, 2012 at 4:20 PM, luke_dorna <luke.dorna@xxxxxxxxx> wrote:
 

I'm doing exactly that, using a single heat pump and distributing the capacity.

I was hoping there was a work around that would allow me to treat these as per a standard AHU with VAV outlets, but it doesn't appear that Energy+ is going to cooperate.

Thanks,



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jim Dirkes" <jim@...> wrote:
>
> Dear Luke,
>
> Thinking about this, it is common for a WSHP to serve more than one room,
> but uncommon for there to be more than one thermostat (i.e. multi-zone).
> These devices are pretty much a one zone component.
>
> That said, you can only do what the software allows or for which there is a
> reasonable work-around. When you think of it, a reasonably designed system
> will normally include zones with similar occupancy, schedule, set points,
> etc. If that's true, just assign one heat pump per zone, using the same COP,
> fan performance, etc. as for a larger multi-zone heat pump. If it's not
> true, one WSHP per zone is still the best available solution, since E+ does
> not have a multi-zone WSHP object (as you already note).
>
>
>
> 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 luke_dorna
> Sent: Monday, January 23, 2012 3:05 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Multiple Zones for Single Heat Pump
>
>
>
>
>
> I am currently using the the AirLoopHVAC:UnitaryHeatPump:WaterToAir object
> to model distributed heat pumps throughout a building. Unfortunately, the
> object only allows for a single controlling thermostat, but the design calls
> for heat pumps that serve multiple rooms.
>
> Has anyone encountered/found a way around this?
>
> I've tried attaching reheat VAVs to the different zones but didn't have much
> luck.
>
> Thanks,
>
> Luke
>




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