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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007>John,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007>Having simulated a number of laboratory buildings for
LEED NC 2.1, I don't see any way around the inclusion of the 'process
spaces' in your ECB analysis. LEED NC 2.1 does let you subtract out the
plug/process loads when calculating the percentage energy reduction versus the
ECB baseline, but I'm guessing that your building has a high ventilation load
combined with large static pressures on supply and exhaust fans that are driving
the energy consumption of the building. Unfortunately, the CIR's that have
been answered on this issue are pretty clear that you cannot exclude these
spaces from the ECB analysis. </SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007>The way to mitigate this issue is look very carefully
at the fan power of the building design and, in particular, the fan power
credits allowed under 6.3.3.1. Take as much credit in the baseline for supply
temperature, filtration, and heat recovery as you reasonably can. In addition,
perform a rigorous calculation of the fan power requirements of your design. In
many buildings of this type, fan power gets grossly oversized. One project I
worked on was calling for 9 in. w.g.. of static on the lab system supply fans.
After a more careful analysis, the MEP concluded that they only needed about 6
in. w.g.. static to satisfy their airflow requirements.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007>Other aspects of 90.1-1999 to pay particular attention
to are sections 6.3.6 and 6.3.7 on energy recovery and exhaust hoods
respectively.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=607211618-11062007>Russell Taylor</SPAN></FONT></DIV>
<DIV><SPAN lang=en-us><FONT face="Lucida Console" color=#808080
size=2>_______________________________________________________________________________</FONT></SPAN>
</DIV>
<P><SPAN lang=en-us><FONT face="Lucida Console" color=#808080 size=2>Russell D
Taylor, Ph.D.</FONT></SPAN> <BR><SPAN lang=en-us><FONT face="Lucida Console"
color=#808080 size=2>UTRC | 411 Silver Lane, MS 129-85 | East Hartford, CT 06108
| Ph: (860) 610-7485</FONT></SPAN> <BR><SPAN lang=en-us><FONT
face="Lucida Console" color=#808080
size=2>_______________________________________________________________________________</FONT></SPAN>
</P>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Peterson, John<BR><B>Sent:</B>
Monday, June 11, 2007 1:10 PM<BR><B>To:</B> BLDG-SIM@gard.com<BR><B>Subject:</B>
[BLDG-SIM] LEED & Laboratory exclusion<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Garamond color=#333399 size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: #333399; FONT-FAMILY: Garamond">Has anyone
managed to exclude interior laboratory spaces from LEED evaluations? We
have a project under LEED 2.1 where we would like to not include the interior
process spaces. Having them included would detract from energy, materials,
water use reduction, lighting and ventilation credit requirements. Any
direction on discussion would be greatly appreciated.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Garamond color=#333399 size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: #333399; FONT-FAMILY: Garamond">Thanks in advance
- <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Garamond color=#333399 size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: #333399; FONT-FAMILY: Garamond">John<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Garamond color=#333399 size=2><SPAN
style="FONT-SIZE: 11pt; COLOR: #333399; FONT-FAMILY: Garamond"><o:p> </o:p></SPAN></FONT></P>
<DIV>
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<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; WIDTH: 98.66%; PADDING-TOP: 0.75pt"
width="98%" colSpan=2>
<P class=MsoNormal><FONT face="Times New Roman" color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399">John Peterson, PE, LEED
AP<o:p></o:p></SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; WIDTH: 98.66%; PADDING-TOP: 0.75pt"
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<P class=MsoNormal><B><FONT face="Times New Roman" color=#333399
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #333399">R.G. Vanderweil
Engineers, LLP</SPAN></FONT></B><FONT color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399">
<o:p></o:p></SPAN></FONT></P></TD></TR>
<TR>
<TD
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width="98%" colSpan=2>
<P class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><FONT
face="Times New Roman" color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399">625 N. Washington
Street</SPAN></FONT></st1:Street><FONT color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399"> <st1:City
w:st="on">Alexandria</st1:City>, <st1:State w:st="on">VA</st1:State>
<st1:PostalCode
w:st="on">22314-1913</st1:PostalCode></SPAN></FONT></st1:address><FONT
color=#333399 size=2><SPAN style="FONT-SIZE: 10pt; COLOR: #333399">
<o:p></o:p></SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; WIDTH: 48.66%; PADDING-TOP: 0.75pt"
width="48%">
<P class=MsoNormal><FONT face="Times New Roman" color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399">Tel: <st1:phone w:st="on"
o:ls="trans" phonenumber="$6683$$$">(703) <st1:phone w:st="on"
o:ls="trans" phonenumber="$6683$$$">683-9700</st1:phone></st1:phone>
<o:p></o:p></SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; WIDTH: 49.34%; PADDING-TOP: 0.75pt"
width="49%">
<P class=MsoNormal><FONT face="Times New Roman" color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399">Fax: <st1:phone w:st="on"
o:ls="trans" phonenumber="$6683$$$">(703) <st1:phone w:st="on"
o:ls="trans" phonenumber="$6683$$$">683-2480</st1:phone></st1:phone>
<o:p></o:p></SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><FONT face="Times New Roman" color=#333399 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #333399"><A
href="http://www.vanderweil.com"><FONT color=#333399><SPAN
style="COLOR: #333399">www.vanderweil.com</SPAN></FONT></A>
<o:p></o:p></SPAN></FONT></P></TD>
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style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV><PRE>
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