[esp-r] Re: EPBD implementation in Portogual and Phase change material

Thu Oct 26 18:01:09 BST 2006

Nuno,

The PCM options worked fine at my computer. Simulation and results analysis 
also run fine. 
You can also select any node you prefer for your constructions. Each layer has 
3 nodes (e.g inside, middle and outside). Number 1 node is the outside node 
of the outside layer for the specific construction.
A simple way to increase the number of nodes of your construction is by 
increasing the number of layers and reduce the thickness of each layer. For 
example, if you have one 100mm brick layer you will normally get 3 nodes for 
this layer. By creating two 50mm brick layers you will get 6 nodes for the 
same construction.
All this must be correct and I hope they are helpful to you.

Regards,

Georgios

> >>Some days ago I post a message regarding problems with phase change
> >>materials, I have already cross my initial problems, it's seems that the
> >>advanced materials file created with the model have one problem writhing
> >> a value. But it works now.
> >>
> >>However I have another question. When modelling PCMs, its necessary to
> >>define the layer properties in the multilayer constructions file, until
> >>here no problems. But when I define the active material (PCM) in the
> >>advanced components module it is necessary to define the node were it is
> >>associated. Well my problem starts here. I have read that the proper way
> >>of putting them in the layer is in the middle node but, the system, by
> >>default, only define two nodes for each layer.
> >>
> >>How can I tell the system to define, unless 3 nodes in each layer? I read
> >>too, that a better subdivision of the layer will increase accuracy.
>
> Thanks in advance.
>
> Best regards,
>
> Nuno Fernandes
>
> ###################################################
> Nuno Tiago Afonso Fernandes
>
> Universidade de Aveiro
> Departamento de Engenharia Mecânica
>
> nuno.fernandes at mec.ua.pt
> ###################################################
> -----Original Message-----
> From: Georgios Kokogiannakis [mailto:georgios at esru.strath.ac.uk]
> Sent: segunda-feira, 23 de Outubro de 2006 18:20
> To: Nuno Fernandes
> Subject: Re: EPBD implementation in Portogual - calculation methods
>
> Dear Nuno,
>
> thanks very much for your reply. It will be useful to me if you have any
> updates in the future regarding this.
> For the ASHRAE 140-2004 I will say the same thing as at my previous email.
> ESP-r is already included in the main publication of the standard for the
> envelope/qualification tests. Just have a look at the original publication
> of
> this standard. For the HVAC tests, there might be an issue there because
> there are only the 2 publications that I sent you the previous time. If you
> read them you will see that not all of the results are there due to size
> restrictions. They were done by Canadians (Kamel Haddad is a good contact
> for
> this). Maybe an official publication from ESRU for these tests might be
> necessary. Let me know when your regulations are finalised and what kind of
> report is needed. I will then talk with the guys in ESRU that could arrange
> a
> report and see how we can progress it in order ESP-r to be accredited in
> Portugal.
>
> Kind regards,
>
> Georgios
>
> On Monday 23 October 2006 13:55, you wrote:
> > Dear Georgios,
> >
> > I do remember our previous contact.
> >
> > Relatively to your question what I can say is that the translation of
> > European directive to Portugal is official, however it just be practical
> > appliance in 2007 (I think)....
> >
> > Relatively to the evaluation of energy demands (heating or cooling) of
> > buildings there will be two allowed methods:
> >
> > -A simplified method based in a one zone model. This evaluation is
> > calculated with a software (STE-2005) developed by INETI www.ineti.pt.
> >
> > -The detailed dynamic simulation method. Yes the ASHRAE 140-2004 tests
> > still the criteria for the accreditation of the tools.
> >
> > The selection of one of these methods is based in the type of building
> > and its area. But I can say that for large services buildings and
> > buildings areas above 1000 sqr meters the detailed method is going to be
> > obligatory. Well, these are the conclusions that I take from the legal
> > document that translates the European directive. However, there still a
> > lack of information about how these documents will work.
> >
> > Hope asks your questions. If not, just say.
> >
> > I hope Esp-r will be allowed.
> >
> > Still doesn't exist a report for Esp-r with ASHRAE 140?
> >
> > Sorry for my English ;)
> >
> > Kind regards,
> >
> > Nuno Fernandes
> >
> >
> > ###################################################
> > Nuno Tiago Afonso Fernandes
> >
> > Universidade de Aveiro
> > Departamento de Engenharia Mecânica
> >
> > nuno.fernandes at mec.ua.pt
> > ###################################################
> > -----Original Message-----
> > From: Georgios Kokogiannakis [mailto:georgios at esru.strath.ac.uk]
> > Sent: domingo, 22 de Outubro de 2006 20:41
> > To: Nuno Fernandes
> > Subject: EPBD implementation in Portogual - calculation methods
> >
> > Dear Nuno,
> >
> > we contacted with each other in the past by email for one of your
>
> questions
>
> > in
> > the esp-r list (please see previous email below). I was wondering whether
> > you
> > know what is the status of the EPBD implementation in Portugual. Are they
> > going to allow dynamic simulation tools? If yes, are the ASHRAE 140-2004
> > tests still the criteria for the accreditation of the tools? I am asking
> > because I read in one publication (of 2005) this:
> > "Portugal will apply the monthly heat balance procedure to dwellings
> > without
> >
> > air conditioning. Its original intention to allow a free choice of
>
> approved
>
> > simulation tools for other buildings is likely to be amended to make the
> > CEN
> >
> > simplified dynamic method a “preferred option”. It is probable that their
> > approval criterion will be ASHRAE 140."
> >
> > I would appreciate if you can let me know your opinion on the above
> > statement
> > and what are the final decisions in regards with this.
> > Also, this website might be useful: http://www.p3e-portugal.com/index.asp
> > but
> > it is in Portuguese  and I can not get anything out of it.
> >
> > Kind regards,
> >
> > Georgios
> >
> > On Friday 07 April 2006 12:43, you wrote:
> > > Mr Kokogiannakis
> > >
> > > Can you please send me the publication:
> > >
> > >
> > >
> > > -Strachan P.A., Kokogiannakis G. and Macdonald I.A. (2005),
> > > ?Encapsulation of Validation Tests in the ESP-r Simulation Program?,
> > > Building Simulation ?05, Montreal, Canada.
> > >
> > >
> > >
> > > Regards,
> > >
> > >
> > >
> > > Nuno Fernandes
> > >
> > >
> > >
> > >   Nuno Tiago Afonso Fernandes
> > >
> > >
> > >
> > >   Universidade de Aveiro
> > >
> > >   Departamento de Engenharia Mecânica
> > >
> > >                                      Campus Universitário de Santiago
> > >
> > >   3810-193 Aveiro
> > >
> > >   Portugal
> > >
> > >                                      Tel.: +351 234 370 830
> > >
> > >   nuno.fernandes at mec.ua.pt
> > >
> > >   www.ua.pt <http://www.ua.pt/>