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<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Have you referenced the help file that discusses how to do
this? Here’s a snippet:<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>
<h4><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>“</span>Ground-Loop Heat-Exchangers and Fluid Coolers in
parallel on WLHP loops<o:p></o:p></h4>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The
program can simulate GROUND-LOOP-HXs together with cooling towers. Often, it
may not be economical to size the well field large enough to handle the peak
cooling loads, especially for buildings that are cooling-dominated. In this
case, it may be desirable to install a fluid cooler in parallel with the well
field. A common control strategy would be to allocate as much of the flow to
the well field as can be cooled to the loop setpoint, and pass the rest of the
flow to the fluid cooler. An example follows.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Note
that ground-loop heat-exchangers can be integrated with heat-rejection devices
only; they cannot be satisfactorily integrated with boilers.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The
following keywords allow you to coordinate the use of one or more ground-loop
heat-exchangers (GLHX) with one or more heat-rejection components, such as a
fluid cooler. These keywords apply only when the EQUIP-CTRL:TYPE =
HEAT-REJECTION. These keywords apply only to the heat-rejection mode of a CW or
WLHP loop; they cannot be used to control GLHXs in the heating mode.”<o:p></o:p></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'><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";
color:black'>Building Energy Analyst<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>
</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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Akshay
Kumar Gupta<br>
<b>Sent:</b> Thursday, May 06, 2010 12:44 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] eQuest: Heat rejection using Geo Thermal HX and
cooling tower in hybrid<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"'>Dear
all,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Iam
trying to model heat rejection system which consists of Geo thermal heat
exchange system (GTHX) with vertical closed loop using series of bore holes in
combination with cooling towers.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>So
that the condenser water rejects as much heat to the ground first and remaining
heat can be rejected to the cooling towers.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>For
GTHX energy is consumed to remove heat within a closed loop buried pipe. Small
circulating motor is adequate to remove heat from the condenser water and
energy savings can be obtained using this.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Does
someone have any idea as to how to combine these two systems in eQuest?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Is
there any way by which we can use equipment sequencing to model this?<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>Best regards<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>Akshay Kumar Gupta</span><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Kalpakrit Sustainable Environments Pvt. Ltd. </span><span
style='font-size:10.0pt;font-family:"Garamond","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'>New Delhi</span><span style='font-size:10.0pt;font-family:"Garamond","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'>Tel: +91.124.4309490-92 Ext: 312 , Fax: +91.124.4309493<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>E-mail : <a href="mailto:akshay@kalpakrit.com"
title="mailto:prabhat@kalpakrit.com
mailto:prabhu@kalpakrit.com">akshay@kalpakrit.com</a></span><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:navy'> </span><span
style='font-size:10.0pt;color:navy'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:8.0pt;color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:Webdings;
color:#008040'>ü</span><span style='font-size:8.0pt;color:navy'> </span><span
lang=EN-GB style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
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