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Re: [EnergyPlus_Support] Re: Air-to-Water heatpump
See HEAT PUMP:WATER HEATER and associated objects in the new version 1.2.3,
released last week.
Mike
On 13 Oct 2005, at 10:28, hbn_pch wrote:
> 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
> >
> >
> >
> > ______________________________________________
> > Renovamos el Correo Yahoo!
> > Nuevos servicios, más seguridad
> > http://correo.yahoo.es
> >
>
>
>
>
>
>
>
> The primary EnergyPlus web site is found at:
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support
EnergyPlus-Support@xxxxxxxx
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