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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Scott!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I ran into similar head-scratchers as I learned the ins and outs
of where VE Ware fits in my kit of energy design/modeling tools. My ultimate
conclusion is that VE Ware is a great tool for fast, comparative studies of
window/wall ratios, building massing studies, basic envelope construction
comparisons and overhang studies. If and when it comes to analyzing
mechanical systems, VE Ware is not your tool of choice for the reasons you’re
bringing up. There’s simply too many variables not being accounted
for, and it’s not a very transparent tool regarding what the various
system options are actually modeling. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If you own an IES suite of packages (beyond the free sketchup
tool), I believe you have the potential to transition your sketchup design work
into a more sophisticated (complex) energy model that can better account for
the myriad of variables you’ll want to define when exploring different
HVAC system options. I cannot vouch for this path as my firm as of yet
does not have the IES for-cost packages.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Personally, I find the IES VE sketchup plugin to be a great tool
for the above stated purposes. I work with my architects to define a “conceptual
HVAC design” phase immediately following the building
massing/envelope/glazing/overhang decisions, wherin I take the sketchup model
as a reference and build an eQuest model that allows me to build up the actual
systems we’re trying to compare to a degree I feel is sufficiently
accurate.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If I may, a single cautionary note – please tread carefully
and recognize that “carbon footprint” does NOT (often) necessarily correlate
to “energy efficiency” or “low utility bills.” All
building designers (architects + engineers) motivated for “green” design
need to be very self-aware of what their actual goals are, as these can cause some
real conflicts =).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I realize I’m dancing around your specific results without
a specific answer, and that’s because I am not an expert on what’s going
on “behind the scene” with the VEware plugin. I’d strongly
encourage you to pose your exact situation at the IES support forums and/or the
Virtual-Sim mailing list here at onebuilding.org for specific advice regarding which
systems you should be choosing to get the intended comparisons! I’d
venture a guess that you are incorrectly assuming “waterloop heat pump”
means “geothermal heat pump.” Both are loaded system descriptions
that could mean a lot of different things – again I would suggest selecting
another tool (perhaps including your project’s energy/MEP consultant?) to
do the comparative mechanical system analyses you desire ;).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Best of luck!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>~Nick<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img width=119 height=37 id="Picture_x0020_1"
src="cid:image001.jpg@01CAA9B3.D2182BC0" alt="cid:489575314@22072009-0ABB"></span><b><span
style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";
color:#2D4D5E'>NICK CATON, E.I.T.</span></b><b><span style='font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";
color:#CC9900'>PROJECT ENGINEER</span><span style='font-size:7.5pt;color:#CC9900'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>25501 west valley parkway<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>olathe ks 66061<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>direct 913 344.0036<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>fax 913 345.0617<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>Check out our new web-site @ </span></i><span style='font-size:
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a
href="www.smithboucher.com" title="blocked::www.smithboucher.com"><span
style='font-size:10.0pt;color:blue'>www.smithboucher.com</span></a></span><u><span
style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:blue'> </span></u><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Scott
Schreffler<br>
<b>Sent:</b> Thursday, February 04, 2010 10:47 AM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] IES VE Ware<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Dear listers,</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>I was doing a simulation using VE Ware plug-in for sketchup carbon
footprint tool, and I am not a technically savvy user, just a dumb
architectural designer...so I had a question.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>All variables were the same between two scenarios, except for the
HVAC type. Under one scenario I was simulating a split mechanical system
with mechanical cooling, and under the other I was simulating a waterloop heat
pump (which I assume is the same as geothermal heat pump?), and the fuel source
was electric.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>The carbon footprint for the waterloop heat pump was greater than
the split system with mechanical cooling. I would've thought it would be
the reverse.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Can someone explain this to me? Any other comments on the
carbon footprint tool for VE ware sketchup plugin?</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Thanks so much for your time.</span><o:p></o:p></p>
</div>
<p><span style='font-size:10.0pt'>Scott G. Schreffler, LEED AP<br>
<i>designer</i><br>
<br>
<b>DYKEMAN</b> | INSPIRING EVERYDAY SPACES<br>
<i>architecture + interior design + visual marketing<br>
</i><br>
<i>tel:</i> 425.259.3161<i> ext</i>. 2355<br>
<i>fax:</i> 425.259.5242<br>
<i>direct:</i> 425.609.2355<br>
<i>mobile:</i> 425.870.2656<br>
<br>
scotts@dykeman.net<br>
<i>www.dykeman.net</i></span> <o:p></o:p></p>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal> <o:p></o:p></p>
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