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<div class=Section1>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Some
quick thoughts:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>You’ll want to simultaneously look at both your
consumption and demand results/curves. Together you can use the resulting
differences to determine where you should make adjustments.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>You should also be looking at both gas and electricity
consumption/demand “actual/modeled” curves if they apply – 4 total.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>Take note that if you are using only a single-year’s worth
of utility consumption data to develop your “actual” curve, you’re
bound to have differences that come from your model using TMY weather
conditions (averaged over decades). The likelihood of any one year being
a “hot” or “cold” year relative to the average is high.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>The individual loads broken out are your first clue – some
loads when increased will raise the “modeled” curve uniformly,
depending on how they’re scheduled. Miscellaneous Loads, Lights and
DHW for example are generally a flat consumption every month, unless you’re
incorporating daylighting controls or some other scheduling schemes. As a
result, raising/lowering those loads (in a way that makes sense and better syncs
with the existing building) will raise/lower the “modeled” curve,
without changing its shape.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>Loads that vary over time will affect the shape of the
curve. Space heating, fans and space cooling energy are generally the
major ones. Increasing/Decreasing these is not as simple as entering a
different W/SF. A few major things affect the overall quantity of
heating/cooling provided over the year – internal loads (particularly solar/people),
their associated schedules, equipment/fan efficiencies (these act sorta like
multipliers to whatever annual consumption shape you arrive at), building
envelope – equally important is building infiltration, and the true
control behavior (actual thermostat setpoints, setback behavior, economizer
operation, etc…)<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>It’s best to try to match curve shape (variable loads),
allowing your modeled consumption to ride uniformly above/below actual, before “playing
with” the constant-over-time components.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";
color:#1F497D'>Ultimately, you will have a balance of work where you are first matching
the existing project to the best of your ability, thereafter tweaking assumptions
for which you cannot account for with true accuracy. If you commit
yourself to this reality, you can define when you are doing the former and carefully
keep track of your assumptions – this is good because you can sleep at
night being able to provide concrete answers regarding exactly which elements
of your model are true behavior.<o:p></o:p></span></p>
<p class=MsoListParagraph><span style='font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>I’ve
been down this route (using eQuest to match an existing building). It’s
quite do-able but as a forewarning may require you to become pretty intimate
with the existing building when all is said and done ;).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><img
width=119 height=37 id="Picture_x0020_1"
src="cid:image001.jpg@01CAC4F3.496D5740" alt="cid:489575314@22072009-0ABB"></span><b><span
style='font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style='font-family:"Stylus BT","sans-serif";
color:#2D4D5E'>NICK CATON, E.I.T.</span></b><b><span style='font-size:12.0pt;
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;font-family:
"Times New Roman","serif";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-family:
"Calibri","sans-serif";color:#1F497D'><a href="www.smithboucher.com"
title="blocked::www.smithboucher.com"><span style='font-size:10.0pt'>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-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Vaziri,
Mo (ON0F)<br>
<b>Sent:</b> Tuesday, March 16, 2010 10:20 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Existing building simulation<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'>If we are doing a
simulation for <u>an existing building</u> and the actual electricity
consumption does not match with the simulation, how can we adjust/calibrate it?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'>The snapshot shows
the actual (blue graph) vs. simulation.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><img border=0 width=740 height=444 id="_x0000_i1025"
src="cid:image002.gif@01CAC4F3.496D5740"><span style='font-size:10.0pt;
color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:13.5pt;font-family:Mistral;
color:navy'>Mo Vaziri</span></i><i><span style='font-family:Mistral;color:navy'> </span></i><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:navy'> <o:p></o:p></span></p>
<p class=MsoNormal><b><u><span style='font-size:10.0pt;color:red'>
Honeywell</span></u></b><span style='font-size:10.0pt;color:red'> <o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;color:navy'>Mo Vaziri, P.
Eng.</span></b><span style='font-size:10.0pt;color:navy'> <b>,</b> </span><span
style='font-size:7.5pt;color:navy'>LEED AP, CEM</span><span style='font-size:
10.0pt;color:navy'><br>
</span><span style='font-size:7.5pt;color:navy'>Design Build / Energy Engineer</span><span
style='font-size:10.0pt;color:navy'> <br>
</span><span style='font-size:7.5pt;color:navy'>Honeywell Building
Solutions - Canada</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;color:navy'>85 Enterprise
Boulevard, Suite 100</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;color:navy'>Markham, Ontario,
L6G 0B5 <br>
</span><span style='font-size:10.0pt;font-family:Wingdings;color:red'>(</span><span
style='font-size:10.0pt;font-family:"Courier New";color:red'> </span><i><span
style='font-size:10.0pt;color:navy'> </span></i><i><span style='font-size:7.5pt;
color:navy'>Phone: (289) 333-1340</span></i><span style='font-size:10.0pt;
color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:Wingdings;color:red'>2</span><i><span
style='font-size:10.0pt;color:navy'> </span></i><i><span
style='font-size:7.5pt;color:navy'>
Fax: (289) 333-1333</span></i><span style='font-size:
10.0pt;color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:Wingdings;color:red'>(</span><span
style='font-size:10.0pt;font-family:"Courier New";color:red'> </span><i><span
style='font-size:10.0pt;color:navy'> </span></i><i><span style='font-size:7.5pt;
color:navy'>Cell: (416) 527-4692</span></i><span
style='font-size:10.0pt;color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:Wingdings;color:red'>*</span><span
style='font-size:10.0pt;font-family:"Courier New";color:red'> </span><i><u><span
style='font-size:10.0pt;color:navy'> </span></u></i><i><u><span
style='font-size:7.5pt;color:blue'><a
href="mailto:pmohammad.vaziri@honeywell.com"
title="mailto:pmohammad.vaziri@honeywell.com">mohammad.vaziri@honeywell.com</a></span></u></i><span
style='font-size:10.0pt;color:navy'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;color:navy'> </span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:navy'> </span><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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