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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I’ve never used an optimum start
schedule before. I tried inputting the -999 flag in the schedule but without
much luck. It reduced the number of load hours from around 1100 total to 800,
but did not eliminate the problem. So far I’ve found that increasing max
zone entering temperature and increasing the supply cfm lowers the unmet load
hours, but I’m afraid of increasing the energy use unnecessarily. I’ve
got the same building using a different system to meet all of its unmet load
hours with similar CFM and btu-h heating/sf.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 color=navy face="Franklin Gothic Demi"><span
style='font-size:12.0pt;font-family:"Franklin Gothic Demi";color:navy'>Robby
Oylear</span></font><font size=2 color=navy face="Franklin Gothic Demi"><span
style='font-size:11.0pt;font-family:"Franklin Gothic Demi";color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;color:navy;font-style:italic'>Mechanical Engineer<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;color:navy'>direct: 206.788.4571<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;color:navy'>cell: 206.354.2721</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:3.0pt'><font size=1 color=navy
face=Arial><span style='font-size:8.0pt;font-family:Arial;color:navy'><a
href="http://www.rushingco.com" title="blocked::http://www.rushingco.com/"><font
color=navy><span style='color:navy;text-decoration:none'><span
title="blocked::http://www.rushingco.com/">www.rushingco.com</span></span></font></a></span></font><font
size=1 face=Arial><span style='font-size:8.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Eric Yang
[mailto:Eric.Yang@smithgroup.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, May 22, 2008 8:17
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Robby Oylear;
bldg-sim@onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Bldg-sim] eQUEST
GSHP Unmet Load Hours</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Maybe you can input or modify optimum
start schedule. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<div>
<div>
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<div>
<p class=MsoNormal><b><font size=1 color="#5f5f5f" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#5F5F5F;font-weight:bold'>Eric
Yang <o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=1 color="#5f5f5f" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#5F5F5F;font-weight:bold'>Mechanical
Engineer Group</span></font></b><font size=1 color=navy face=Verdana><span
style='font-size:6.0pt;font-family:Verdana;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#5f5f5f" face=Verdana><span
style='font-size:7.0pt;font-family:Verdana;color:#5F5F5F'>LEED AP, C.E.M<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#5f5f5f" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#5F5F5F'>…………………………………………………… <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Verdana><span style='font-size:
6.0pt;font-family:Verdana;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=1 color="#5f5f5f" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#5F5F5F;font-weight:bold'>SmithGroup</span></font></b><font
size=1 color=navy face=Verdana><span style='font-size:6.0pt;font-family:Verdana;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=1
color=black face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:black'>1850 K Street NW, Suite 250</span></font></st1:address></st1:Street><font
size=1 color=black face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=1
color=black face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:black'>Washington</span></font></st1:City><font size=1 color=black
face=Verdana><span style='font-size:8.0pt;font-family:Verdana;color:black'>, <st1:State
w:st="on">D.C.</st1:State> <st1:PostalCode w:st="on">20006</st1:PostalCode></span></font></st1:place><font
size=1 color=navy face=Verdana><span style='font-size:6.0pt;font-family:Verdana;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=1 color=gray face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:gray;font-weight:bold'>D</span></font></b><font
size=1 color=gray face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:gray'> 2 0 2 . 9 7 4 . 4 5 5 5<o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=1 color=gray face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:gray;font-weight:bold'>F</span></font></b><font
size=1 color=gray face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:gray'> 7 3 4 . 7 8 0 . 8 6 7 1</span></font><font size=2
color=gray face="Arial Narrow"><span style='font-size:10.0pt;font-family:"Arial Narrow";
color:gray'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Verdana><span style='font-size:
8.0pt;font-family:Verdana;color:navy;letter-spacing:1.0pt'><a
href="mailto:eric.yang@smithgroup.com"><font color="#5f5f5f"><span
style='color:#5F5F5F'>eric.yang@smithgroup.com</span></font></a><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:
5.0pt;margin-left:0in'><font size=1 color=red face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:red'>“</span></font><font
size=1 color=navy face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:navy'><a href="http://www.bdcnetwork.com/article/CA6440632.html"><font
color=red><span style='color:red'>One of the Best AEC Firms to Work For</span></font></a></span></font><font
size=1 color=red face=Verdana><span style='font-size:8.0pt;font-family:Verdana;
color:red'>”</span></font><font size=1 color=navy face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:5.0pt;margin-right:0in;margin-bottom:
5.0pt;margin-left:0in'><font size=1 color=gray face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:gray'>Building Design + Construction
Magazine, May 2007 </span></font><font size=1 color=navy face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#5f5f5f" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#5F5F5F'>See how we do it. </span></font><font
size=1 color="#ff6600" face=Verdana><span style='font-size:8.0pt;font-family:
Verdana;color:#FF6600'>/</span></font><font size=1 color=navy face=Verdana><span
style='font-size:6.0pt;font-family:Verdana;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'><a href="http://www.smithgroup.com/"
title="http://www.smithgroup.com/"><font size=1 color="#ff6600" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#FF6600'><span
title="http://www.smithgroup.com/">www.smithgroup.com</span></span></font></a><o:p></o:p></span></font></p>
</div>
</div>
</div>
</div>
</div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Robby Oylear<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, May 22, 2008 11:13
AM<br>
<b><span style='font-weight:bold'>To:</span></b> bldg-sim@onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] eQUEST GSHP
Unmet Load Hours</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi everyone,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m trying to model a ground source heat pump system in
eQUEST using a Water Loop Heat Pump system attached to a ground source heat
exchanger. The system seems to work fine during occupied hour but it just
can’t meet morning warm-up loads. I’m doing a systems energy
analysis for our local energy code compliance and there is a mandatory night
setback of 55 °F from 70 °F in heating. During winter months the system
doesn’t seem to be able to jump from 55 °F to 70 °F space temperature in
less than 1-2 hours. I’ve double checked the fan schedules and the
system is allowed to come on during this time. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Does anyone have any suggestions for getting the system to
meet these unmet load hours? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Franklin Gothic Demi"><span
style='font-size:12.0pt;font-family:"Franklin Gothic Demi"'>Robby Oylear</span></font><font
size=2 face="Franklin Gothic Demi"><span style='font-size:11.0pt;font-family:
"Franklin Gothic Demi"'><o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=2 face="Times New Roman"><span
style='font-size:10.0pt;font-style:italic'>Mechanical Engineer<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>direct: 206.788.4571<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>cell: 206.354.2721</span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:3.0pt'><font size=1 face=Arial><span
style='font-size:8.0pt;font-family:Arial'><a href="http://www.rushingco.com"
title="blocked::http://www.rushingco.com/"><font color=black><span
style='color:windowtext;text-decoration:none'><span
title="blocked::http://www.rushingco.com/">www.rushingco.com</span></span></font></a><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:3.0pt'><font size=1 face=Arial><span
style='font-size:8.0pt;font-family:Arial'><img border=0 width=95 height=41
id="_x0000_i1025" src="cid:image001.jpg@01C8BBEF.4514AD60"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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