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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Two quick things to check would be the supplemental electric
heat (for the air-source system) as well as your loop field design parameters.
Your numbers could be correct if it’s in an extremely cold climate, you’ve
oversized the loop field or your loop field ground thermal properties are unrealistic
for the area in question. <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>
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<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'>Mechancial Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>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";
color:black'>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";
color:black'>Centennial, CO 80112<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>303-531-5292 v<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>303-805-3563 f<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>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>
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<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"'>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>Stephen
Parker<br>
<b>Sent:</b> Friday, April 24, 2009 3:03 AM<br>
<b>To:</b> equest-users<br>
<b>Subject:</b> [Equest-users] GSHP Simulation Results<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span style='color:black'>Hello everyone,<br>
<br>
I have modeled a ground source heat pump within the building I have designed
and have been getting results that seem almost too good to be true. I
decided to compare my results with a typical high efficiency air side heat pump
and discovered that the geothermal system is operating about 65-75% better than
the air side heat pump in terms of cost. The results from the air side
heat pump appear to be correct and are reasonable for my design.<br>
<br>
Has anybody else ever gotten results for a geothermal system design that were
much better than expected? If so, was there something incorrect within
your model or have you deemed it as an internal flaw of eQUEST? This
project is for my masters thesis, so I am trying to justify my results as much
as possible. For my system I am using two 3.5 ton GSHPs with an EER of
21.8 and a COP of 4.4, which is rather efficient. <br>
<br>
Thanks,<br>
<br>
Stephen Parker<br>
Bucknell University<o:p></o:p></span></p>
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