<div dir="auto"><div>Kamlesh, <div dir="auto"><br></div><div dir="auto">It's worth checking E+ which has an inbuilt capability of modeling earth air tunnel. Here you find a link to read more about this. </div><div dir="auto"><br></div><div dir="auto"><a href="https://bigladdersoftware.com/epx/docs/8-3/input-output-reference/group-airflow.html#zoneearthtube-earth-tube">https://bigladdersoftware.com/epx/docs/8-3/input-output-reference/group-airflow.html#zoneearthtube-earth-tube</a><br></div><div dir="auto"><br></div><div dir="auto"><br></div>Hope this helps!!<br><br><div class="gmail_quote"><div dir="ltr">On Mon, May 14, 2018, 7:54 PM Bishop, Bill via Equest-users <<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Hi Kamalesh,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">There is no direct way to model earth air tunnels in eQUEST/DOE-2. I think the best you can do is to use some other method to estimate the impact on outside air
properties and then try modeling it with an equivalent preconditioner combination such as a Ground Loop Heat Exchanger with the evaporative cooler.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">I have about thirty reference documents on earth tube design that I gathered (29 MB) if you are serious about it.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">~Bill<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif">William Bishop, PE, BEMP, BEAP, CEM, LEED AP<u></u><u></u></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif">Senior Energy Engineer<u></u><u></u></span></b></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"> Equest-users [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank" rel="noreferrer">equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>kamalesh Chandra via Equest-users<br>
<b>Sent:</b> Friday, May 11, 2018 9:12 AM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank" rel="noreferrer">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Earth Air Tunnel Modeling guideline<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Hi Team,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Hope everything is going well there. I am working in a project, in which the evaporative coolers are taking air from the earth air tunnel outlet. I just want to know how we can model the impact
of Earth Air Tunnel in eQuest.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Any help would be appreciated!!<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Thanks!<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Kamalesh<u></u><u></u></span></p>
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