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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'>All: </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 Xiaobing mentioned, ASHRAE recently funded
a research project (RP-1384) to simulate hybrid GSHP systems…The main
goal of the project is to establish general design guidelines for
sizing/controlling these systems (targeted at designers). The project has been
completed; reports and publications should be released in the near future. But
the model (built using the well-validated TRNSYS ground loop model) will also
be released in a distributable format that can be used by anyone, for design, system
optimization, research, etc. The official version of this distributable program
would be available sometime after the report.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Scott Hackel</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Graduate Research Assistant, Solar Energy
Lab</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>University of Wisconsin - Madison</span></font></p>
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<p class=MsoAutoSig><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'><a href="mailto:sphackel@uwalumni.com">sphackel@uwalumni.com</a></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'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Xiaobing Liu<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, February 27, 2008
7:51 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Sever, Franc;
bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Hybrid
GSHP system</span></font></p>
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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Franc:</span></font></p>
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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>As I know, the current version of eQUEST
cannot simulate hybrid GSHP system that has both boiler and cooling tower
coupled with GHX. Although a hybrid GSHP system with cooling tower only
can be set up and run with eQUEST, but the modeling algorithm for this
kind of HGSHP is not flexible enough to simulate a real HGSHP. The challenging
task is to determine how to distribute the loads and flow rate to GHX and the
cooling tower. </span></font></p>
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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>There are some new developments in
modeling hybrid GSHP with other programs. You may want to check for additional
information.</span></font></p>
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<p class=MsoNormal><em><i><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Development of Design Guidelines for Hybrid Ground
Source Heat Pump Systems, 1384-RP</span></font></i></em>, Greg Nellis, Sandy
Klein and Jeff Thornton, University of Wisconsin, Madison, Wisconsin</p>
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<p class=MsoNormal><font size=3 face="Trebuchet MS"><span style='font-size:
12.0pt;font-family:"Trebuchet MS"'>Gentry, J.E., J.D. Spitler, D.E. Fisher, X.
Xu. 2006. <a
href="http://www.hvac.okstate.edu/research/Documents/Gentry_Spitler_Fisher_Xu_06.pdf">Simulation
of Hybrid Ground Source Heat Pump Systems and Experimental Validation.</a>
Proceedings of The7th International Conference on System Simulation in
Buildings, Liège, Belgium. December 11-13, 2006 (paper is available at <a
href="http://www.hvac.okstate.edu/research/Documents/Gentry_Spitler_Fisher_Xu_06.pdf">http://www.hvac.okstate.edu/research/Documents/Gentry_Spitler_Fisher_Xu_06.pdf</a>)</span></font></p>
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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Regards,</span></font></p>
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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Xiaobing</span></font></p>
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<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org]<b><span style='font-weight:
bold'>On Behalf Of </span></b>Sever, Franc<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, February 26, 2008
3:43 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] Hybrid GSHP
system</span></font></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><!-- Converted from text/rtf format -->Hello
All,</span></font> </p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I
am trying to model a hybrid ground source heat pump system (boiler and fluid
cooler). Does anyone know how to do this using eQuest?? I have
created the GLHX and attached a fluid cooler and a boiler, however eQuest will
not run the simulation with the boiler attached to the loop. If anyone
has experience with this type of simulation I would any help that you can
offer. Thanks</span></font></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Franc
J. Sever</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Engineer,
Mechanical</span></font> </p>
<p><font size=3 color=red face=Arial><span style='font-size:12.0pt;font-family:
Arial;color:red'>karpinski</span></font> <br>
<font size=1 color=black face=Arial><span style='font-size:7.5pt;font-family:
Arial;color:black'>ENGINEERING</span></font> <br>
<font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:black'>3135 Euclid Avenue</span></font> <br>
<font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:black'>Cleveland, OH 44115</span></font> <br>
<font size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:red'>P</span></font><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> 216-391-3700</span></font>
<br>
<font size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:red'>F</span></font><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> 216-391-0108</span></font>
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<font size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:red'>E</span></font><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> </span></font><u> </u><u><font
size=2 color=blue face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:blue'>FSever@karpinskieng.com</span></font></u> </p>
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face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
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