[EnergyPlus_Support] Re: Air-to-Water heatpump

["hbn_pch" <hbn_pch@xxxxxxxxxxxx>]

Thanks very much.I will do a test according to the suggestion

  pch

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Pedro Rodrigo 
<pedromanuelrc@y...> wrote:
>
> Hi,
> I made the same question some months ago so I'm
> sending you several messages I received. I hope its
> usefull for you:
> 
> On 1 May 2005, at 17:54, Pedro Rodrigo wrote:
> > 
> > > Dear all.
> > > I have realized that there is not a model
> available
> > in
> > > EP for a reversible cycle air to water heat pump
> > > (central equipment).
> > > I'm really interested in using this unit in my EP
> > > simulations.
> > > Do you have a creative idea to implement something
> > > similar to this kind of equipment?
> > > Thanks a lot,
> > > Regards,
> 
> 
> --- "Michael J. Witte" <mjwitte@g...> wrote:
> > ---------------------------------
> > A heat pump water heater model, based on the
> DOE-2.1E
> > model, is scheduled to be 
> > in the Fall 2005 release of EnergyPlus.  
> > 
> > Until then, please tell me more about the system you
> > wish to model.  What will 
> > this heat pump serve - domestic hot water, space
> > heating, space cooling?  Will 
> > the air-side source/sink be inside the building or
> > outdoors?
> 
> 
> On 3 May 2005, at 11:38, Pedro Rodrigo wrote:
> 
> > Thanks Michael.
> > The heat pump has two operating modes: one for
> cooling
> > water, one for heating water. This conditioned water
> > is only used for space heating and cooling through
> > several two-pipe terminal units such as Air Handler
> > Units and Fan-Coils.
> > The heat-pump transfers heat between outside air and
> > the water loop.
> > I hope this information was what you asked for.
> > Looking forward to hearing from you,
> > Regards,
> > Pedro
> 
> --- "Michael J. Witte" <mjwitte@g...> wrote:
> 
> A possible solution would be to use
> HEATPUMP:WATERTOWATER COOLING and 
> HEATPUMP:WATERTOWATER HEATING (see example files
> GSHP-GLHE.idf and 
> PlateHeatExchanger.idf).  The source side of the heat
> pumps would be placed on 
> the demand side of a PLANT LOOP.  Set up this plant
> loop with dual setpoints 
> and supply it with PURCHASED:CHILLED WATER and
> PURCHASED:HOT WATER 
> (5ZoneWaterLoopHeatPump.idf) and set the setpoints to
> be schedules which track 
> the outdoor dry bulb temperature +/- a small amount. 
> You could read in the 
> schedules using SCHEDULE:FILE:COMMA. This is rather
> messy and difficult to set 
> up, and I am not completely sure it will work.
> 
> 
> 
> 
> 
> Pedro Manuel Rodrigo Cruz
> University of Jaen, Spain
> 
> 
> 		
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