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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’m not sure how it breaks down between
pool load and air load, but I think it is part of the building heating load in
either case.<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'>Doug Maddox<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 Weidt Group<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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<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight:bold'>From:</span></font></b><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'> Fred Porter [mailto:FPorter@archenergy.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, January 31, 2008
11:05 AM<br>
<b><span style='font-weight:bold'>To:</span></b>
bldg-sim@lists.onebuilding.org; Doug Maddox<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Swimming
pool modeling</span></font><font color=black><span style='color:windowtext'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color=black 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 color=black face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma;color:windowtext'>My understanding (from some
long-forgotten reference, possibly authoritative, possibly
not) has always been that the evaporative cooling effect accrues to the
pool itself and the pool heater offsets it, and I have not modeled as a
cooling load in/to the space. But I could imagine that part of that
evaporation does cool the space. <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=black face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma;color:windowtext'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=black face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma;color:windowtext'>Fred Porter<o:p></o:p></span></font></p>
</div>
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<p class=MsoNormal><font size=2 color=black face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma;color:windowtext'>AEC<br>
<br>
>>> "Doug Maddox" <DougM@TWGI.com> 1/30/2008 9:09 AM
>>><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The evaporation has a cooling effect that
needs to be accounted for with a sensible source load in the model.<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'>Doug Maddox<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 Weidt Group<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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<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight:bold'>From:</span></font></b><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Demba Ndiaye<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, January 30, 2008
10:54 AM<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] Swimming
pool modeling</span></font><font color=black><span style='color:windowtext'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color=black 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'>Dusko, <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'>That’s also the methodology I followed for
a recent project in eQuest. <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'>You can find an equation for the
evaporation rate in the ASHRAE Applications Handbook. Another source is </span></font><a
href="http://www.rlmartin.com/rspec/whatis/index.html">http://www.rlmartin.com/rspec/whatis/index.html</a>.<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'><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'>Hope this helps.<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>______________</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:PersonName w:st="on"><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Demba Ndiaye</span></font></st1:PersonName><o:p></o:p></p>
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<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight:bold'>From:</span></font></b><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Zarske, Jim<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, January 30, 2008
10:33 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Dusko Nikolic;
bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Swimming
pool modeling</span></font><font color=black><span style='color:windowtext'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color=black 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'>I cannot comment on Energy+.
However, as far as eQUEST, I've modeled a natatorium (indoor pool) including
the latent load. In one of the ASHRAE books, there's a methodology for
determining the latent loads of a pool as a function of activity, water
temperature, and I believe a few other factors. I ran through these
calculations and inputted this load into the "Internal Energy
Sources" under the Equipment internal gains tab. I created a
schedule based on when the proposed pool cover would be off (pool in use), and
called it a "process" load. I believe I set the Latent HG ratio to
1.0 and Sensible to 0.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 color=black 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'>The results of my model seemed to be
reasonable. </span></font><o:p></o:p></p>
<div>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Maybe with this methodology, it might
allow you figure something out with Energy+; otherwise, eQUEST may be your
best, closest approximation, for this project.</span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 color=black
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>Dusko Nikolic<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, January 30, 2008
2:20 AM<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] Swimming pool
modeling</span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'>Hi,<br>
<br>
Is it possible to model swimming pool in Energy+? I could not find the way to
model latent loads due to water evaporation<br>
<br>
<br>
<br>
Thanks<br>
<br>
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'><br>
</span></font><img border=0 width=101 height=35 id="_x0000_i1026"
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font-weight:bold'><br>
Dusko Nikolic</span></font></b><b><font size=2 color="#5f5f5f"
face="Arial Narrow"><span style='font-size:10.0pt;font-family:"Arial Narrow";
color:#5F5F5F;font-weight:bold'><br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Mechanical</st1:PlaceName> <st1:PlaceType
w:st="on">Building</st1:PlaceType></st1:place> Services Engineer</span></font></b><font
size=1 color="#5f5f5f" face="Arial Narrow"><span style='font-size:7.5pt;
font-family:"Arial Narrow";color:#5F5F5F'><br>
MWH New Zealand
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