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Re: [EnergyPlus_Support] how to simulate atrium and its adjacent offices
Dear Andy
I have try to Designbuilder before. But I found some problem when exporting
the model to energyplus.
1. I can not change the names of building components, like wall, room,
window etc. So when exported to energyplus I can not recognize the building
components . I think it is diffult to modify the model in energyplus.
how to resolve it , thank you.
On 6/23/06, Andy Tindale <andy@xxxxxxxxxxxxxxxxxxx> wrote:
>
> Nicole,
>
> You may be interested to know that the ROOMAIR TEMPERATURE
> PATTERN:CONSTANT
> GRADIENT object mentioned by Brent in his reply is implemented in the
> DesignBuilder user interface to EnergyPlus. This allows you to easily
> model
> vertical distribution of air temperatures by modulating the temperature
> gradient during the simulation based on a range of different
> variables. In
> DesignBuilder, this data is accessed on the HVAC tab under the 'Air
> Temperature Distribution' header.
>
> Andy Tindale
> DesignBuilder Software
>
> -----Original Message-----
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]On Behalf Of Griffith, Brent
> Sent: jeudi 22 juin 2006 17:59
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: RE: [EnergyPlus_Support] how to simulate atrium and its
> adjacent offices
>
>
> Nicole,
>
>
>
> Re: your second question about stratification
>
>
>
> This is a tough problem, but the implications of stratification can now
> be modeled in EnergyPlus using user-defined room air models - see the
> I/O reference for the ROOMAIR TEMPERATURE PATTERN objects. However,
> these models require that you already know something about the
> stratification. CFD is probably needed to do a good job of determining
> the vertical distribution of air temperatures. But a simple way to
> model atria in EnergyPlus is to assume a vertical gradient (?for a 50
> meter high space maybe 0.1 deg C per meter?) and use the ROOMAIR
> TEMPERATURE PATTERN:CONSTANT GRADIENT object.
>
>
>
> Brent
>
>
>
>
>
> _____
>
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Michael J.
> Witte
> Sent: Thursday, June 22, 2006 6:43 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: Re: [EnergyPlus_Support] how to simulate atrium and its
> adjacent offices
>
>
>
> Sorry I somehow repeated the question instead of sending an answer.
> Let's try
> this again . . .
>
> 1. Zones do not necessarily require a complet enclosure. If you want
> sunlight
> and heat to be transferred between the atrium zone and the office zones,
> then
> you will need inter-zone walls and windows to model that transfer. Yes,
> the
> inter-zone walls and windows are each described twice, once for each
> zone,
> facing in opposite directions. It is critical to get the facing
> directions
> correct, or the window will not see sunlight.
>
> 2. I have no advice to offer here. Perhaps someone else does.
>
> Mike
>
> On 21 Jun 2006 at 22:46, Michael J. Witte wrote:
>
> > I am simulating a building with a huge glass-roofed atrium. On the two
> > opposite sides of the atrium is floors for offices. Obviously I have
> to
> > model the office and atrium zones which are adjacent to each other.
> >
> > . . .
> >
> > On 21 Jun 2006 at 18:54, nicole chen wrote:
> >
> > > Dear all,
> > >
> > > I am simulating a building with a huge glass-roofed atrium. On the
> two
> > > opposite sides of the atrium is floors for offices. Obviously I have
> to
> > > model the office and atrium zones which are adjacent to each other.
> > >
> > > My first questions is whether or not I have to define the inter-zone
> wall
> > > and its associated windows twice for two adjacent zones in
> EnergyPlus. If
> > my
> > > understanding is correct, in E+ each zone needs to be defined with a
> > > complete set of surfaces (say, 6) surrounding it.
> > >
> > > My second question is if there is any modeling tools other than CFD
> that
> > are
> > > capable of simulating the temperature stratefication effect of
> theatrium,
> > > which is approx. 50 meter high.
> > >
> > >
> > > I highly appreciate your help.
> > >
> > > --
> > > Yours
> > > Nicole Chen
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > >
> > > The primary EnergyPlus web site is found at:
> > > http://www.energyplus.gov <http://www.energyplus.gov>
> > >
> > > The group web site is:
> > > http://groups.yahoo.com/group/EnergyPlus_Support/
> <http://groups.yahoo.com/group/EnergyPlus_Support/>
> > >
> > > Attachments are not allowed -- please post any files to the
> appropriate
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> > > in the Files area of the Support Web Site.
> > >
> > > EnergyPlus Documentation is searchable. Open EPlusMainMenu.idf and
> press
> > the
> > > "search" button.
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> > ========================================================
> > Michael J. Witte, GARD Analytics, Inc.
> > EnergyPlus Testing and Support
> > EnergyPlus-Support@xxxxxxxx <mailto:EnergyPlus-Support%40gard.com>
> >
> >
> >
> >
> >
> >
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov <http://www.energyplus.gov>
> >
> > The group web site is:
> > http://groups.yahoo.com/group/EnergyPlus_Support/
> <http://groups.yahoo.com/group/EnergyPlus_Support/>
> >
> > Attachments are not allowed -- please post any files to the
> appropriate folder
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> >
> > EnergyPlus Documentation is searchable. Open EPlusMainMenu.idf and
> press the
> > "search" button.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> 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.idf and press
> the "search" button.
>
> Yahoo! Groups Links
>
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>
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>
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>
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>
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> Attachments are not allowed -- please post any files to the appropriate
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>
> EnergyPlus Documentation is searchable. Open EPlusMainMenu.idf and press
> the "search" button.
>
> Yahoo! Groups Links
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>
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>
--
Yours
Nicole Chen
[Non-text portions of this message have been removed]
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