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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>As Bill is saying, there is no fast/simple way to make your
broken-out consumptions match. That you came up with the “right” total
consumption is arbitrary. It will still be equally “right” if you correct the
individual consumptions one by one. Allow yourself a margin of error and go to
town! I’d follow Bill’s advice, and first hammer out the “easy” ones, as they
may inadvertently affect “space heating”: DHW and misc equipment.<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'>Also echoing Bill: Ask yourself the overall purpose of the model
and whether it really needs to be calibrated to this degree – is it really so
different from the expected “known” figures, or is your model accurate enough
to be functional for the task at hand?<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>
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<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>
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color:#2D4D5E'>25501 west valley parkway<o:p></o:p></span></p>
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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>
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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'>www.smithboucher.com</span></a></span><u><span
style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:blue'> </span></u><span
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
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<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>Bishop,
Bill<br>
<b>Sent:</b> Wednesday, June 23, 2010 3:43 PM<br>
<b>To:</b> Synergy Team; eQUEST-users@onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Help - Manipulating dedicated gas
consumptionsin eQUEST<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;font-family:"Arial","sans-serif";
color:navy'>Vaughn,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Rumor has it that eQUEST v4.0 will have an “Autotweek” tool. You
tell the program what the output should be, and the inputs are automatically
adjusted accordingly. </span><span style='font-size:10.0pt;font-family:Wingdings;
color:navy'>J</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Kidding aside, why do you need eQUEST to tell you what you already
“know” from your spreadsheet? Matching the total BTUs does not mean much if the
individual values for space heating, DHW and process loads are all way off.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>You can adjust the DHW by adjusting the Process Flow (gpm) for the
DHW loop or by adjusting the process load schedule.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>You can adjust the Input Power (Btu/h) and schedules for any gas
loads that you enter as Internal Energy Sources in your spaces.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>If gas loads are entered as Direct – Interior or Direct – Exterior
loads on your fuel meter, then change the load (MBtu/h) or schedule in the
Utility & Economics module for the meter.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Space heating gas consumption is not so direct. There are many
things that affect this, including thermostat schedules, boiler efficiency,
building envelope, miscellaneous loads, lighting power, occupancy, outside air,
economizer operation, and nighttime fan operation, just to get you started.
Many of these also affect your electrical consumption. Hopefully that’s not on
your spreadsheet too.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Long story short – model calibration is not so simple. Start
crunching!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Bill<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";
color:black'>William Bishop, PE, BEMP, LEED<sup>®</sup> AP </span></b><b><span
style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";color:#006600'>|</span></b><b><span
style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";color:black'>
</span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";
color:black'>Pathfinder Engineers & Architects LLP</span></b><b><span
style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";color:black'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>Mechanical Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:5.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:navy'>134 South Fitzhugh Street</span><span style='font-size:9.0pt;
color:navy'><br>
</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:navy'>Rochester, NY 14608</span><span style='font-size:9.0pt;color:navy'><br>
</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:navy'>T: (585) 325-6004 </span><span style='font-size:9.0pt;font-family:
"Arial","sans-serif";color:black'>Ext. 114</span><span style='font-size:9.0pt;
color:navy'><br>
</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:navy'>F: (585) 325-6005</span><span style='font-size:9.0pt;font-family:
"Arial","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>wbishop@pathfinder-ea.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>www.pathfinder-ea.com</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:Webdings;
color:green'>P</span><span style='color:green'> </span><span style='font-size:
7.5pt;color:green'>Sustainability – less is more.</span><span style='color:
green'><o:p></o:p></span></p>
</div>
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<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
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<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>Synergy Team<br>
<b>Sent:</b> Wednesday, June 23, 2010 1:24 PM<br>
<b>To:</b> eQUEST-users@onebuilding.org<br>
<b>Subject:</b> [Equest-users] Help - Manipulating dedicated gas consumptions
ineQUEST</span><o:p></o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>good afternoon everyone,<br>
<br>
We are modelling a 2 story multi-family structure in eQuest that contains four
3 bedroom apartments side by side. After simulating the model, we have found
that the eQuest estimate for TOTAL gas consumption (space heating + DHW + misc.
equipment) is very close to our spreadsheet calculation. The model indicates a
total annual gas consumption of 413.14 Million Btu's. We calculated 414.01
Million Btu's. Very close! However, the proportions of Btu's dedicated to space
heating, DHW, and misc equipment is very different in our eQuest model and our
spreadsheet. Does anyone know a simple way to manipulate the proportions of
Btu's dedicated to each of these three categories without affecting the TOTAL
annual gas consumption which is nearly dead on? We would like to divy it up
based on our calculated usage patterns. We understand that this might be
accomplished by adjusting the numbers in the Space Heating/DHW boiler diagrams.
Also, that changing the daily/weekly schedules might affect this. Are these the
only ways to approach this or is there a more simple solution without having to
crunch such numbers?<br>
<br>
Thanks.<br>
<br>
Vaughn Slovak<br>
Architectural Designer<br>
Synergy Design<br>
p.845.255.1733<br>
f.845.255.1694<o:p></o:p></p>
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