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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Jacob,<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’m sure you’ve figured this out by now but eQuest
has substantial limitations with regards to the system you’re trying to
model. <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 would start by reading all the pertinent threads dealing with
loop to loop heat pumps and heat recovery chillers to get an idea of what can
and can’t be done (lots to learn there).<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 your “open loop” is a production –
reinjection type setup, the initial temperature will be close (within 5<sup>o</sup>)
to the mean annual outdoor air temperature. I’ll spare you all the
disclaimer’s with regards to that statement! <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><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Anthony Hardman<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Building
Energy Analyst<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>LEED
AP<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:14.0pt;font-family:"Calibri","sans-serif";
color:#9BBB59'>Geo-Energy Services<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>14250
E Easter Pl, STE C<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Centennial,
CO 80112<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>303-531-5292
v<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>303-805-3563
f<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>720-273-9973
c<o:p></o:p></span></p>
<p class=MsoNormal><u><span style='font-family:"Calibri","sans-serif";
color:#0070C0'><a href="http://www.geoenergyservices.com"><span
style='color:blue'>www.GeoEnergyServices.com</span></a><o:p></o:p></span></u></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Jacob
Goodman<br>
<b>Sent:</b> Friday, May 21, 2010 2:07 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Central Geothermal System<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I couldn't find any postings on this subject, but maybe I
was just using the wrong search words so here goes. I'm trying to model a
geothermal system that runs open loop from a large aquifer with a 10 deg change
in the water replaced into the aquifer. There will be 2-4 large heat pumps
operating on hot and cold water loops with one heat pump operating between the
two loops. See attached diagram.<br>
<br>
The air side of the system will be 4 pipe fan coils since the maintenance team
is familiar with this type of system. There will be a condensing boiler for
backup heating.<o:p></o:p></p>
<ul type=disc>
<li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
mso-list:l0 level1 lfo1'>how to simulate an open loop ground well?<o:p></o:p></li>
<li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
mso-list:l0 level1 lfo1'>do i need to create hot, cold and GSHP loops
under water-side HVAC...if so how do I tie them together?<o:p></o:p></li>
</ul>
<p class=MsoNormal>Any tips on how to model this system will be very helpful,
Thanks much!<o:p></o:p></p>
<div>
<p class=MsoNormal><br>
<b><span style='font-size:11.0pt;font-family:"Arial","sans-serif"'>Jacob
Goodman </span></b><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#666666'>, LEED AP</span><o:p></o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
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