I've had a little experience in complex envelope geometry, although I've never used ArchiCAD or Ecodesigner. Generally speaking though, energy modeling software can't use curved geometry. Any curved surface has to be approximated using planar surfaces. Modeling software need this planar geometry in it's internal algorithms,
especially to calculate the radiative heat transfer and shading. <br><br>The approach I have used, for Energyplus, is to manually mesh a curved surface using many smaller triangular surfaces. There are likely ways to automate the process if you have very complex and large geometry. <br>
<br>Cheers,<br><br>Marcus<br>-- <br>Marcus Jones, LEED AP, M.Sc. <br><i>Freelance energy consultant</i><br><i>Vienna, Austria</i><br><br><br><div class="gmail_quote">On Mon, Jul 11, 2011 at 11:07 AM, Lars O. Grobe <span dir="ltr"><<a href="mailto:grobe@gmx.net">grobe@gmx.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi Simon,<br>
<br>
could you give some more information on the nature of that "complex spiral 3d shading system"? It would probably be intersting whether this is a light redirecting system, a solid structure or more like sheet, can be controlled or is static...<br>
<br>
Cheers, Lars.<br>
<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear All,<br>
<br>
Hope all are well.<br>
Currently I have a ArchiCAD BIM model and need to perform energy modeling to LEED compliant.<br>
I wonder if anyone has worked on ArchiCAD BIM model before, mind to shed some thoughts if the Ecodesigner module can perform LEED compliant modeling? How about alternative softwares?<br>
<br>
Since the facade has complex spiral 3D curvy shading system I doubt the ability of EQuest or Energy Plus to model the geometry.<br>
Appreciate some insightful thoughts from all the members out there.<br>
<br>
Many thanks in advance.<br>
<br>
--<br>
Regards,<br>
Simon C.<br>
</blockquote>
<br>
<br>
<br>
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