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<DIV dir=ltr align=left><SPAN class=905534913-07042010><FONT face=Arial
color=#0000ff size=2>If you just start the table with:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905534913-07042010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=905534913-07042010><FONT face=Arial
color=#0000ff size=2>BHP Eff</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905534913-07042010><FONT face=Arial
color=#0000ff
size=2>0 0.825</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905534913-07042010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=905534913-07042010><FONT face=Arial
color=#0000ff size=2>and set =vlookup(*,*,2,TRUE) you should get the results you
want.</FONT></SPAN></DIV>
<DIV> </DIV><!-- Converted from text/rtf format -->
<P><SPAN lang=en-us><FONT face=Arial></FONT></SPAN> <BR><SPAN
lang=en-us><B><FONT face=Arial color=#0000ff size=2>John Grando</FONT><FONT
face=Arial size=2> </FONT><FONT face=Arial color=#0000ff size=2>LEED
AP</FONT><FONT face=Arial size=2>| </FONT><FONT face=Arial color=#808080
size=2>Mechanical Engineer</FONT><BR></B><FONT face=Arial color=#808080
size=2>Phone: 212-615-3705 | Fax: 212-615-3700</FONT><BR><FONT face=Arial
color=#0000ff size=2>jgrando@cosentini.com</FONT><BR><BR><B></B><B></B><B><FONT
face=Arial color=#808080 size=2>Cosentini Associates - A Tetra Tech
Company<BR></FONT></B><FONT face=Arial color=#808080 size=2>Two Pennsylvania
Plaza - Third Floor - New York, NY 10121</FONT><BR></SPAN><A
href="http://www.cosentini.com/"><SPAN lang=en-us><U></U><U></U><U><FONT
face=Arial color=#0000ff size=2>www.cosentini.com</FONT></U></SPAN></A><SPAN
lang=en-us><BR></SPAN><BR><SPAN lang=en-us><FONT face=Arial> </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> Bishop, Bill
[mailto:wbishop@pathfinder-ea.com] <BR><B>Sent:</B> Tuesday, April 06, 2010 5:10
PM<BR><B>To:</B> Tomlinson, Scott;
equest-users@lists.onebuilding.org<BR><B>Subject:</B> Re: [Equest-users]
Calculating Baseline Fan Power<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Scott,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The note for Table
G3.1.2.9 states to use the design flow rate of the <I
style="mso-bidi-font-style: normal"><SPAN
style="FONT-STYLE: italic; mso-bidi-font-style: normal">baseline</SPAN></I>
building system to calculate A. There is still the issue of whether or not to
apply the adjustment from Table 6.5.3.1.1B when the baseline system serves a
different area than the proposed system. I’m still trying to decide that as
well. I can think of at least two alternatives:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1; tab-stops: list .5in"><![if !supportLists]><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial; mso-fareast-font-family: Arial"><SPAN
style="mso-list: Ignore">1.)<FONT face="Times New Roman" size=1><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></FONT></SPAN></SPAN></FONT><![endif]><FONT face=Arial color=navy
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Apply the
pressure drop adjustment to any baseline system that conditions at least half of
the area of a proposed system that qualifies for the
adjustment,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1; tab-stops: list .5in"><![if !supportLists]><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial; mso-fareast-font-family: Arial"><SPAN
style="mso-list: Ignore">2.)<FONT face="Times New Roman" size=1><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></FONT></SPAN></SPAN></FONT><![endif]><FONT face=Arial color=navy
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Apply the
pressure drop adjustment in a weighted manner based on the proportional area
conditioned by the baseline system relative to the proposed
system.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I think option 1.)
<SPAN class=GramE>would</SPAN> be quicker but option 2.) <SPAN
class=GramE>more</SPAN> closely reflects the intent of the pressure drop
adjustment.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">On a related note, if
anybody has figured out a way to use a VLOOKUP function or equivalent in Excel
for looking up motor efficiency in a baseline <SPAN
class=SpellE>P<SUB>fan</SUB></SPAN> calculation, let me know. (The function
returns the efficiency of the next smallest motor in the table when there is no
exact match, but G3.1.2.9 requires the efficiency of the next largest motor to
be used.)<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Regards,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Bill<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><B style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-bidi-font-weight: normal; mso-no-proof: yes">William
Bishop, EIT, BEMP, LEED<SUP>®</SUP> AP </SPAN></FONT></B><B
style="mso-bidi-font-weight: normal"><FONT face="Franklin Gothic Medium Cond"
color=#006600 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #006600; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-bidi-font-weight: normal; mso-no-proof: yes">|</SPAN></FONT></B><B
style="mso-bidi-font-weight: normal"><FONT face="Franklin Gothic Medium Cond"
color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-bidi-font-weight: normal; mso-no-proof: yes">
</SPAN></FONT></B><B style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-bidi-font-size: 11.0pt; mso-bidi-font-weight: normal; mso-no-proof: yes">Pathfinder
Engineers & Architects LLP</SPAN></FONT></B><B><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes"><o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes">Mechanical
Engineer<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 5pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><st1:address
style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"
tabIndex=0 w:st="on"><st1:Street w:st="on"><FONT face=Arial color=navy
size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">134
South Fitzhugh Street</SPAN></FONT></st1:Street><FONT color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; mso-no-proof: yes"><BR></SPAN></FONT><st1:City
w:st="on"><FONT face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">Rochester</SPAN></FONT></st1:City><FONT
face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">,
<st1:State w:st="on">NY</st1:State> <st1:PostalCode
w:st="on">14608</st1:PostalCode></SPAN></FONT></st1:address><FONT color=navy
size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; mso-no-proof: yes"><BR></SPAN></FONT><FONT
face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">T:
(585) 325-6004 </SPAN></FONT><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes">Ext.
114</SPAN></FONT><FONT color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; mso-no-proof: yes"><BR></SPAN></FONT><FONT
face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">F:
(585) 325-6005</SPAN></FONT><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-no-proof: yes"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes">wbishop@pathfinder-ea.com<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 11.0pt; mso-no-proof: yes">www.pathfinder-ea.com</SPAN></FONT><FONT
face="Times New Roman" color=navy size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: navy; FONT-FAMILY: 'Times New Roman'; mso-no-proof: yes"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Webdings color=green size=5><SPAN
style="FONT-SIZE: 18pt; COLOR: green; FONT-FAMILY: Webdings; mso-bidi-font-family: Webdings; mso-no-proof: yes">P</SPAN></FONT><FONT
color=green><SPAN style="COLOR: green; mso-no-proof: yes"> </SPAN></FONT><FONT
color=green size=1><SPAN
style="FONT-SIZE: 7.5pt; COLOR: green; mso-no-proof: yes">Please strive to live
sustainably.</SPAN></FONT><FONT color=green><SPAN
style="COLOR: green"><o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
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<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Tomlinson, Scott<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, April 06, 2010 4:29
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
equest-users@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Equest-users] Calculating
Baseline Fan Power</SPAN></FONT><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">eQuesters,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN style="FONT-SIZE: 11pt">Sorry
in advance for a confusing question, but determining baseline system fan power
is terribly confusing to me. I am currently using ASHRAE 90.1 –
2007.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">According to section G3.1.2.9 I need to calculate fan
power=(bhp*746)/(fan motor efficiency) for a system
7.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">According to Table G3.1.2.9 I need to calculate
bhp=CFM(s)*.0013+A for a system 7.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">According to Table 6.5.3.1.1A I need to calculate
A=Summation of [PD*CFM(d)/4131] where:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN style="FONT-SIZE: 11pt">PD=
each applicable pressure drop adjustment from table 6.5.3.1.1B in wc
and<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt">CFM(d)= the design airflow of each applicable device
from table 6.5.3.1.1B<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN style="FONT-SIZE: 11pt">So
basically I take the airflow rates from my <U>design building</U> systems and
the pressure drops from my components in my <U>design building</U> systems to
figure out what my baseline building break horsepower will be. What if I
have systems serving multiple floors in my design building? Since 90.1
requires me to have a system per floor in my baseline building how would I
handle this? What if I have systems with different components serving
different portions of my design building?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN style="FONT-SIZE: 11pt">I
guess a simpler question would be how are people determining baseline fan
power?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN style="FONT-SIZE: 11pt">Thank
you,<o:p></o:p></SPAN></FONT></P>
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<P class=MsoNormal><B><FONT face=Tahoma color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma">Scott Tomlinson,
PE, LEED-AP</SPAN></FONT></B><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma"><o:p></o:p></SPAN></FONT></P></TD></TR>
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<P class=MsoNormal><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma">Mechanical<o:p></o:p></SPAN></FONT></P></TD></TR>
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<P class=MsoNormal><B><FONT face=Tahoma color=#004040 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #004040; FONT-FAMILY: Tahoma">Symmes
Maini & McKee Associates, Inc.</SPAN></FONT></B><FONT face=Tahoma
color=#004040 size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: #004040; FONT-FAMILY: Tahoma"><o:p></o:p></SPAN></FONT></P></TD></TR>
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<P class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><FONT
face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma">1000
Massachusetts Avenue</SPAN></FONT></st1:Street><FONT face=Tahoma
color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma">, <st1:City
w:st="on">Cambridge</st1:City>, <st1:State w:st="on">MA</st1:State>
<st1:PostalCode
w:st="on">02138</st1:PostalCode></SPAN></FONT></st1:address><FONT
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<P class=MsoNormal><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma">t:
617.520.9438<o:p></o:p></SPAN></FONT></P></TD>
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<P class=MsoNormal><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma">f:
617.354.5758<o:p></o:p></SPAN></FONT></P></TD></TR>
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style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in">
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style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Tahoma"><A
href="mailto:STomlinson@smma.com">stomlinson@smma.com</A><o:p></o:p></SPAN></FONT></P></TD></TR>
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