[EnergyPlus_Support] Re: Heat pump: external air – water loop

["FrancescoP" <direzionecontraria@xxxxxxxx>]

Thank you for your answers. I am studying HeatPumpWaterHeater.idf
It seems useful for my goals.
Best Regards
Francesco Passerini


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Karen Walkerman <kwalkerman@...> wrote:
>
> On the heating side you would use a Coil:WaterHeating:AirToWaterHeatPump.
> 
> On the cooling side you would use an air-cooled chiller.
> 
> --
> Karen
> 
> On Tue, Dec 18, 2012 at 12:42 PM, Jeremiah Crossett <
> jcrossett@...> wrote:
> 
> >
> >  I am not sure if this is the correct approach- but what I did was model
> > a chiller and boiler with a AHU then a packaged heat pump in the zone. My
> > thought was that the pre-heat/cooled air from the AHU would supply the air
> > source heat pump in the zone to mimic the actual system. Where my work
> > around is questionable is the efficiency between the AHU and the ASHP..
> > Possibly there is a better solution but I wanted to keep the project in DB
> > so this was the best option I could come up with.. Possibly you could do
> > the same..
> >
> > [image: Inline image 1]
> > *
> > *
> > *
> > *
> > *Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions*
> > *
> > 120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951
> > www.phasechange.com
> > *
> >
> > *
> > *
> > *
> > *
> >
> >
> >
> >
> > On Tue, Dec 18, 2012 at 9:25 AM, FrancescoP <direzionecontraria@...>wrote:
> >
> >>
> >>
> >> I have to model a heat pump that outside the building exchanges heat with
> >> the external air and it exchanges heat with the building, i.e. with the
> >> internal part of the HVAC plant, thorough water. The scheme of the plant is
> >> like as follows: www.taec.co.uk/Airpumps
> >> The heat pump works both in heating mode (winter season) and in cooling
> >> mode (summer season).
> >> In cooling mode I could model such a system as a chiller. But how could I
> >> model it in heating mode?
> >> Could I find an example file in the folder ExampleFiles? I found
> >> examples, like 5ZoneWaterLoopHeatPump.idf, in which heat is transmitted
> >> through air loops but in my case there is no air loop.
> >> Best Regards
> >>
> >>
> >  
> >
>



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