Re: [EnergyPlus_Support] Building geometry modification

["Michael J. Witte" <mjwitte@xxxxxxxx>]

Other options to consider:

1.  If you have a DOE-2 graphical interface, there is a DOE-2 
translator with EnergyPlus that will convert most DOE-2.1E envelope 
objects (but not all).  Test is with a small building first to be 
sure it will do what you need.

2.  Again, if you have a DOE-2 graphical interface, DrawBDL (a third-
party utility) can generate EnergyPlus surface objects.

3.  Can the model be simplified without compromising the thermal 
results?  Combining similar zones and/or surfaces to reduce the total 
number of objects can be a great time saves and help reduce the 
chance for error.

Mike


On 21 Jul 2003, at 12:04, Rob Hitchcock wrote:

> Rajendra,
> 
> You could try the IFCtoIDF translator that converts the building
> geometry in CAD drawings saved in IFC format into IDF format (see
> http://www.eere.energy.gov/buildings/energyplus/ifc.html).  This is
> still a beta product, but it would allow you to draw your building and
> make changes in CAD and then more easily transfer these changes to
> EnergyPlus.  You would need to do some manual editing of the IDF to
> change Construction types of the envelope elements.  The IFCtoIDF
> utility is included as part of the EnergyPlus download and can be
> installed by checking the IFCtoIDF checkbox during installation.  Note
> that you should then download the update of this utility from the
> EnergyPlus Support website at the URL below.
> 
> http://groups.yahoo.com/group/EnergyPlus_Support/files/Updates/Windows
> /IFCtoIDF_Update_6-10-03.zip
> 
> Rob Hitchcock
> ==============
> Rajendra Adhikari wrote:
> 
> > Hi everybody,
> >
> > We are simulating a large building with more than 900 walls and
> > windows. If we want to make a change in the geometry of any building
> > component e.g. walls or windows, every time we have to modify the 12
> > coordinates of the corresponding component. For example if one wants
> > to make a change in a window, he has to define in  idf  file new
> > coordinates (xyz)  as 4 points corresponding to the position of
> > component, which is a tedious process, particularly when we have a
> > large number of windows and walls.
> >
> > Anybody can suggest relatively simpler method?
> > Is there already exist any graphical interface for describing the
> > building geometry (similar to DOE2.0)?
> >
> > Thanks
> >
> > Rajendra
> >
> >
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