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<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2>Actually, I'm utilising IES to do HVAC design, Energy
Analysis, PMV calc, lighting lux design, lighting power intensity design and
natural daylight analysis all in line with the Australian Standards and Green
Star (another form of LEED) requirements. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2>Although the software costs money, I've found it to be
worthwhile battling against it's flaws and it gives us the results which we
require. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2><STRONG><U>Please note, this is a one model
approach</U></STRONG>. It's easy to start a project at CD (concept design) stage
within Google Sketchup and to utilise the freeware version of IES to do
alternate design analysis. However, it's way better if the full suite is
purchases and the model is crossed over into IES. Within IES multiple analysis
and detailed designs can be modelled quickly and with fantastic final project
results. I know, I've done it.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2>Also with the daylight analysis, if you've got a detailed
building with over 100000 surfaces, it's going to take forever to do the
analysis, that's my only issue with the software. However, the software is
developing multithreading facility within it's software, therefore decreasing
the time for analysis dramatically.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=383412304-12032009><FONT face=Arial
color=#0000ff size=2>Should anyone want to discuss my approaches further, and
are in Brisbane, I welcome the opportunity to meet and greet with
you.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2></FONT><!-- Converted from text/rtf format --></DIV>
<P><FONT size=2><B><I><FONT face="Times New Roman"
color=#000080>Regards,</FONT></I></B><I></I><BR><B></B><B><I><FONT
face="Times New Roman">Ronan Carney</FONT></I></B><I></I><BR><FONT
face=Complex>Electrical Engineer</FONT><BR><B></B><B></B><B><FONT face=Arial
color=#800000>Project Services</FONT></B><BR><FONT face=Wingdings
color=#0000ff>*</FONT><FONT face=Arial color=#800080>Level 5B 80 George
St</FONT><FONT face="Times New Roman"></FONT> <FONT face=Arial
color=#800080>Brisbane</FONT><BR><FONT face=Wingdings
color=#0000ff>(</FONT><FONT face=Arial>Ph:</FONT><FONT
face="Times New Roman"></FONT> <FONT face=Arial>(07) 3224 5983</FONT><BR><FONT
face=Wingdings color=#0000ff>2</FONT><FONT face=Arial>Fax: (07) 3224
6151</FONT><BR><FONT face=Wingdings color=#0000ff>,</FONT><FONT
face=Arial>Email</FONT><FONT face=Arial color=#0000ff>:</FONT><FONT
face="Times New Roman"><U></U></FONT><U> </U></FONT><A
href="mailto:Ronan.Carney@projectservices.qld.gov.au"><U><FONT face=Arial
color=#0000ff
size=2>Ronan.Carney@projectservices.qld.gov.au</FONT></U><U></U></A><U></U><FONT
face="Times New Roman"> </FONT></P><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
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<FONT face=Tahoma size=2><B>From:</B> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Rob
Guglielmetti<BR><B>Sent:</B> Thursday, 12 March 2009 1:12 PM<BR><B>To:</B> Ross
Harding<BR><B>Cc:</B> bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re:
[Bldg-sim] One model<BR></FONT><BR></DIV>
<DIV></DIV><BR>
<DIV>
<DIV>On Mar 11, 2009, at 6:09 PM, Ross Harding wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><SPAN class=Apple-style-span
style="WORD-SPACING: 0px; FONT: 12px Helvetica; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2; webkit-border-horizontal-spacing: 0px; webkit-border-vertical-spacing: 0px; webkit-text-decorations-in-effect: none; webkit-text-size-adjust: auto; webkit-text-stroke-width: 0">
<DIV lang=EN-AU vlink="blue" link="blue">
<DIV class=Section1>
<DIV
style="FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 'Times New Roman', serif"><SPAN
class=Apple-style-span
style="FONT-SIZE: 12px; COLOR: rgb(20,79,174); webkit-text-stroke-width: -1">The
ultimate goal for us would be to use one model for daylight and energy models,
but I haven’t found that quite that simple as most software requires varying
drawing techniques.</SPAN></DIV></DIV></DIV></SPAN></BLOCKQUOTE><BR></DIV>
<DIV>Amen brother! Another issue is that while the energy model has to
include the total building -- all spaces and systems -- to be a complete picture
of the energy use, a Radiance-based daylight model does not necessarily require
all the spaces to be modeled simultaneously. Indeed, the accuracy of the
ambient calculation is directly affected by the maximum size of the scene, and
so conducting a simultaneous daylight simulation of an entire building at an
acceptably rigorous ambient resolution can be -- is generally --
time-prohibitive.</DIV>
<DIV><BR></DIV>
<DIV>As mentioned in a recent thread on this list, Thomas Bleicher's "su2rad"
plugin for SketchUp can export a SU model to Radiance format and there is also
an E+ plugin to allow one to use the same SU model for E+ analysis; in theory,
these three components (SketchUp, su2rad and the E+ plugin) allow for a "single
model" approach to energy and daylight modeling. However, because the su2rad
exporter wants to take the entire model and create a single Radiance scene
description, that creates the aforementioned problem of the ambient calculation
getting out of hand fairly quickly. I suppose through intelligent layering
and model structuring, one could create a model that could be exported to
Radiance in "space components", but I'm not sure if this is compatible with the
E+ plugin's layering/model organization requirements.</DIV>
<DIV><BR></DIV>
<DIV>- Rob Guglielmetti</DIV>
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