[EnergyPlus_Support] Re: Phase Change Material

["Jeff" <jeffreykiesel@xxxxxxxxx>]

Hi, I am also trying to simulate PCMs in a building envelope for my dissertation.  I have incorporated the enthalpy curve and wall material into a EPlus reference building and have gotten results that I am not comfortable with.  I looked at the EPlus PCM example idf but itis not representative of what I am doing.  I would like to review and run the Solar Decathlon idf to see what that output looks like with and without PCM.  However, I could not download your attachment from the group messages.

Thanks,
Jeff


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Jeremiah Crossett <jcrossett@...> wrote:
>
> Yes, it is very easy to add the material property phase change material to
> a model, however it can be quite difficult to get it to perform as you
> might want.  Attached is an example of a solar decathlon home in this
> years competition that uses bioPCM for solar gain control.
> *
> *
> *
> *
> *Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions*
> *
> 120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951
> www.phasechange.com
> *
> 
> *
> *
> *
> *
> 
> 
> 
> On Mon, Aug 5, 2013 at 6:03 AM, Luca <luca.guj@...> wrote:
> 
> > **
> >
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "aysan" <aysan_60@> wrote:
> > >
> > > Hi,
> > > I'm trying to model phase change material to show improvement of natural
> > ventilation in a room,I was wondering how can I model it?
> > >
> >
> > Hi,
> >
> > the simulation of the PCM in E+ is pretty easy. You need to use the
> > MaterialProperty: PhaseChange obj in combination with the standard material
> > definition. Therefore you need to provide the tabular vaariation of the
> > enthalpy over temprature and then assign the same material by means of the
> > name. Carefull becosuse you need to cover the full temperature range
> > experienced by your material during the simulation.
> > The PCM material simulation works only with the conduction finite
> > difference solver and not with the standard conduction transfer function.
> >
> > Ciao
> >
> > Luca
> >
> >  
> >
>




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