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<p class=MsoNormal><span style='color:#1F497D'>I guess that the crucial
assumption is whether all the dehumidification, reheat ,etc. is “</span><span
style='font-size:12.0pt'>maintaining comfort”. </span><span
style='color:#1F497D'>Initially, I thought that because it was far more than “just”
comfort, it had to be considered process. Maybe I was wrong. For my
client’s sake, I hope so!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks to several of you who
have responded! <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal align=center style='text-align:center'><b><span
style='font-size:13.5pt;font-family:"Times New Roman","serif";color:#1F497D'>The
Building Performance Team<br>
</span></b><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>James V. Dirkes II, P.E., LEED AP<br>
</span></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>1631 Acacia Drive NW<br>
Grand Rapids, MI 49504<br>
616 450 8653<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Rosenberg, Michael I
[mailto:michael.rosenberg@pnl.gov] <br>
<b>Sent:</b> Friday, June 25, 2010 4:01 PM<br>
<b>To:</b> James V Dirkes II, PE; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Bldg-sim] LEED, Process energy and pools<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt'>James,<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt'>I
don’t think I agree with you that all swimming pool related energy is a
process load according to 90.1. The definition in 90.1 is as follows:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:12.0pt'>process
energy</span></b><span style='font-size:12.0pt'>: energy consumed in support of
a manufacturing, industrial, or commercial process other than conditioning
spaces and maintaining comfort and amenities for the occupants of a building</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'>Clearly controlling space and pool water
temperature in a natatorium maintains comfort for the occupants of a building.
Additionally, 90.1 specifically includes many swimming pool related requirements
including;<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;
line-height:115%;font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:12.0pt;line-height:115%;
font-family:"Times New Roman","serif"'>Section 7.4.5.1 – pool heaters<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;
line-height:115%;font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:12.0pt;line-height:115%;
font-family:"Times New Roman","serif"'>Section 7.4.5.2 – pool covers<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;
line-height:115%;font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:12.0pt;line-height:115%;
font-family:"Times New Roman","serif"'>Section 7.4.5.3 – time switches<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;
line-height:115%;font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:12.0pt;line-height:115%;
font-family:"Times New Roman","serif"'>Table 7.8 – pool heater efficiency
requirements<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;
mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;
line-height:115%;font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:12.0pt;line-height:115%;
font-family:"Times New Roman","serif"'>Section 6.5.6.1 - Exhaust Air Energy
Recovery (does not specifically mention swimming pools, but should apply).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'>Mike<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:.5in'><b><span style='font-size:12.0pt;font-family:"Verdana","sans-serif";
color:#D47500'>__________________________</span></b><span style='font-size:
12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:.5in'><b><span style='font-size:12.0pt;font-family:"Verdana","sans-serif"'>Michael
Rosenberg</span></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Senior
Commercial Buildings Energy Analyst</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'> <br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>ENERGY
& ENVIRONMENT DIRECTORATE </span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Verdana","sans-serif"'>Pacific Northwest National Laboratory </span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>2032
Todd Street </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Eugene,
OR 97405 </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>(541)
844-1960 </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>michael.rosenberg@pnl.gov
</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
</span><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:#D47500'>www.pnl.gov</span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'> </span><span style='font-size:10.0pt;font-family:
"Arial","sans-serif"'><o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>James V
Dirkes II, PE<br>
<b>Sent:</b> Friday, June 25, 2010 11:16 AM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] LEED, Process energy and pools<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Dear Bldg-Sim community,<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>I’ve just completed a lovely,
accurate, comprehensive building energy model (in Energy Plus) which contains
an indoor swimming pool. The building is about 100,000 square feet and
the pool area is about 10% of that total.<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>At the end of the year, the
heating, cooling, fans and pumps associated with the pool have consumed 70% of
the total building energy! I was rather surprised. I expected it to
be a large percentage, but not THAT large! This, by the way, is the
result when using a specialty pool HVAC unit which recovers and re-uses most of
the DX cooling energy and thus greatly reduces the pool energy total.<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>As far as I can tell, ALL of the
pool-related energy is considered by ASHRAE 90.1 and LEED to be “process”
energy. Since “process” energy must be identical in both the
baseline and proposed models, the rest of the building must accomplish the
entire savings … which is pretty darn difficult (impossible, really) if “process”
is too large a percentage.<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Have any of you successfully
modeled a building with a pool and also received LEED certification? If
so, can you suggest what I might be missing?<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Thanks in advance.<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'><img width=336 height=192
id="Picture_x0020_1" src="cid:image001.jpg@01CB1483.C7AFA740"
alt="BPT BizCard_RGB_0507"><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Quid est hoc ad aeternitatem?<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
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