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Re: [EnergyPlus_Support] Re: Wall condensation
Dear Josep,
I thik that these condensation variables give us a first approach to the problem. In case they report condensation, you can be sure you will have a general condensation over the surface. In case they don't report condensation, there is still the possibility of condensation located around cold spots.
---
Miguel Angel Pascual Buisan
-----Original Message-----
From: <josep.sole@xxxxxxxxxxx>
Date: Thu, 7 Jun 2007 16:29:44
To:<EnergyPlus_Support@xxxxxxxxxxxxxxx>
Subject: RE: [EnergyPlus_Support] Re: Wall condensation
I'm not sure if these variables are absolutely correctly calculated.
Point temperature (for condensation purpose) it's always a bi dimensional o three-dimensional o forth dimensional problem in my opinion interactions between adjacent building components are not well modelisated in Energy plus (it's not the goal!).
Usually condensation analysis needs different film coefficients factors than energetic calculation.
Josep Sole
URSA Iberica Aislantes SA
www.ursa.es <http://www.ursa.: <http://www.ursa.es> es>
________________________________
De: EnergyPlus_Support@: <mailto:EnergyPlus_Support%40yahoogroups.com> yahoogroups.com [mailto:EnergyPlus_Support@: <mailto:EnergyPlus_Support%40yahoogroups.com> yahoogroups.com] En nombre de Michael J. Witte
Enviado el: jueves, 07 de junio de 2007 0:13
Para: EnergyPlus_Support@: <mailto:EnergyPlus_Support%40yahoogroups.com> yahoogroups.com
Asunto: Re: [EnergyPlus_Support] Re: Wall condensation
There are report variables for window surfaces only:
Zone,Average,Inside Glass Condensation Flag[]
Zone,Average,Inside Frame Condensation Flag[]
Zone,Average,Inside Divider Condensation Flag[]
Mike
On 6 Jun 2007 at 21:54, Miguel Angel Pascual wrote:
> Thanks for your answer. I have been looking for the report variable for the
> condensation flag but I could't find it. Is it something direct or do we have to
> postprocess the surface and dew point temperatures?
>
> Thanks.
>
>
>
> ---
> Miguel Angel Pascual Buisan
>
>
> -----Original Message-----
> From: "Michael J. Witte" <mjwitte@gard.: <mailto:mjwitte%40gard.com> com <mailto:mjwitte%40gard.com> >
> Date: Wed, 06 Jun 2007 16:30:27
> To:EnergyPlus_Support@: <mailto:EnergyPlus_Support%40yahoogroups.com> yahoogroups.com <mailto:EnergyPlus_Support%40yahoogroups.com>
> Subject: Re: [EnergyPlus_Support] Re: Wall condensation
>
> EnergyPlus does not model condensation on windows or wall surfaces. EnergyPlus
> only reports if condensation would occur (simply by comparing the surface
> temperature with the zone dew point).
>
> Mike
>
> On 2 Jun 2007 at 3:20, ooikoonbeng2004 wrote:
>
> > My simulation using schedules that turns on the airconditioner and
> > then off it, the temparature on the window glass dips in the next
> > hour after the aircond is turned off. i am not sure whether this is
> > the condensation on the glass. i do not recall seeing this in the
> > documentation.
> > ooi
> > --- In EnergyPlus_Support@: <mailto:EnergyPlus_Support%40yahoogroups.com>
> yahoogroups.com, "Miguel Angel Pascual" > <mapascual@...> wrote: > > > > Hello:
> > > > > > > > > I would like to know if energyplus can report wall condensation
> in > the > > inside face of the walls. > > > > > > > > Thanks in advance. > > >
> > > > > > Miguel Ángel Pascual > > > > Director Técnico > > > > > > > > MIYABI
> espacios urbanos bioclimáticos > > > > Leyre 11bis, 1ºC 31002 Pamplona > > > >
> Tel: 948 20 36 44 Fax: 948 20 78 60 > > > > Email: mapascual@... > > > > Web:
> <http://www.miyabi.: <http://www.miyabi.:> : <http://www.miyabi.: <http://www.miyabi.:> :> <http://www.miyabi.: <http://www.miyabi.es/> es/ <http://www.miyabi.: <http://www.miyabi.es/> es/> > es/> www.miyabi.es > > > > > > > >
> > > > > > > > > [Non-text portions of this message have been removed] > > > > >
> > > The primary EnergyPlus web site is found at: > http://www.energypl: <http://www.energypl:> : <http://www.energypl: <http://www.energypl:> :>
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>
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support
> EnergyPlus-Support@: <mailto:EnergyPlus-Support%40gard.com> gard.com
>
>
>
>
> The primary EnergyPlus web site is found at:
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>
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>
> Attachments are not allowed -- please post any files to the appropriate folder
> in the Files area of the Support Web Site.
>
> EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the
> Documentation link and press the "search" button.
>
> Yahoo! Groups Links
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>
>
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