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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'>Ahmed,<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>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The best recommendation that I can think
of is to model this as a “Combination Ground Source Heat Pump” Plant
with a “4 pipe fan coil” System. You will have to add the
distributed heat pump cooling capacities to the central heat pump cooling capacity
and create a representative COP. As you can’t model a boiler plant
for the System heating, I’d recommend modeling the heating as a Natural
Gas or Oil Furnace. System Cooling can be input as Hydronic so chilled
water will come from the central Water-to-water heat pump plant. NRCan
may be willing to provide input as well even with the ecoENERGY program ending
this past spring.<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>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>As you know EE4 is not the most flexible simulation
program, eQUEST might do a better job if you are familiar with that software.<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'><br>
Regards,<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'>Aaron <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 style='margin-left:27.0pt'><strong><b><font size=3
color=navy face="Times New Roman"><span style='font-size:12.0pt;color:navy'>Aaron
Smith, </span></font></b></strong><em><i><font color=gray face="Times New Roman"><span
style='color:gray'>P.Eng</span></font><font color=navy><span style='color:navy'>
</span></font></i></em><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:27.0pt'><i><font size=2 color=gray
face=Verdana><span style='font-size:10.0pt;font-family:Verdana;color:gray;
font-style:italic'>LEED® AP BD+C,</span></font></i><i><font size=1
color=gray face=Verdana><span style='font-size:9.0pt;font-family:Verdana;
color:gray;font-style:italic'> M-ASHRAE, Mechanical Engineer</span></font></i><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Verdana><span style='font-size:
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<p class=MsoNormal style='text-indent:27.0pt'><font size=1 color=gray
face=Verdana><span style='font-size:9.0pt;font-family:Verdana;color:gray'>t:
(902) 422-7393</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:27.0pt'><font size=1 color=gray
face=Verdana><span style='font-size:9.0pt;font-family:Verdana;color:gray'>f:
(902) 423-4945</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:27.0pt'><font size=1 color=gray
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color:navy'> <a href="mailto:asmith@mreng.ca"><span lang=FR>asmith@mreng.ca</span></a></span></font><font
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<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
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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'> Mehta, Gaurav
[mailto:Gaurav.Mehta@stantec.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, August 04, 2011
7:06 PM<br>
<b><span style='font-weight:bold'>To:</span></b> bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Modeling
Centralized Water-to-Water HP's and Hybrid HP's</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=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Ahmed,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Have you referenced the <a
href="http://canmetenergy-canmetenergie.nrcan-rncan.gc.ca/fichier/79060/EE4-English-2008-02-01.pdf">EE4
Modeling Guide</a> ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>In case you have not. You might find it
useful when using EE4. It has a number of workarounds with examples.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Thanks.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Best regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Gaurav<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><b><font size=1 color=black face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:black;font-weight:bold'>Gaurav
Mehta, LEED® AP BD+C</span></font></b><font size=1 color=black face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:black'><br>
Sustainable Building Analyst<br>
Stantec<o:p></o:p></span></font></p>
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<st1:place w:st="on"><st1:City w:st="on"><font size=1 color=gray face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:gray'>Seattle</span></font></st1:City><font
size=1 color=gray face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:gray'> <st1:State w:st="on">WA</st1:State> <st1:PostalCode w:st="on">98101</st1:PostalCode></span></font></st1:place><br>
<font size=1 color=gray face=Arial><span style='font-size:9.0pt;font-family:
Arial;color:gray'>Ph: (206) 770-7779<br>
Fx: (206) 770-5941<br>
Gaurav.Mehta@stantec.com<o:p></o:p></span></font></p>
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<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=1 color=black face=Arial><span style='font-size:
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<p class=MsoNormal><font size=4 color="#008040" face=Webdings><span
style='font-size:13.5pt;font-family:Webdings;color:#008040'>ü</span></font><font
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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'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Ahmed Azhari<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, August 04, 2011
2:12 PM<br>
<b><span style='font-weight:bold'>To:</span></b> bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] Modeling
Centralized Water-to-Water HP's and Hybrid HP's<o:p></o:p></span></font></p>
</div>
</div>
<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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<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>Hi, <o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>I am using a Canadian-based energy modeling software called
EE4 which uses DOE calculation engine. I am trying to model a centralized
water-to-water Heat Pumps System that provides hot water to distributed hybrid
heat pumps (hybrid heat pump is fan coil in heating mode and heat pump in
cooling mode). The hybrid heat pumps uses ground to reject heat when in cooling
mode. The centralized water-to-water heat pumps provide chilled water for the
make-up air units cooling coils. The Make-up air units heating coils are fed
directly from the boiler. EE4 would not allow me to use a combination of these
two systems. Does anyone have a work-around to this type of system. <o:p></o:p></span></font></p>
</div>
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<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
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<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>I would really appreciate any input in this regards. <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>Thanks,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>Ahmed <o:p></o:p></span></font></p>
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