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<DIV>Robby,</DIV>
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<DIV>My understanding is: since this is a non-tradable surface, base line and proposed design should be the same even though it is well below allowances.</DIV>
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<DIV>Thanks,</DIV>
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<DIV>Weixiu<BR></DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Robby Oylear <robbyo@rushingco.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> bldg-sim@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thu, February 4, 2010 10:21:28 AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Bldg-sim] Exterior Lighting Power Calculation for Building Facades<BR></FONT><BR>
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<P class=MsoNormal>Can anyone with experience showing compliance with ASHRAE 90.1-2004 section 9.4.5 enlighten me as how the baseline calculation should be done? </P>
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<P class=MsoNormal>The confusion I’m having is with the definition of an illuminated wall or surface length when applying the 5.0 W/linear foot allowance for building façades. How is the lineal footage of an illuminated wall determined? </P>
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<P class=MsoNormal>For example, if a 100’ wide wall has one exterior lighting fixture on it at the center, is the entire wall considered to be illuminated and thus the baseline lighting power allowance is 500W? Or is there some method of determining the actual portion of the wall that is illuminated?</P>
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<P class=MsoNormal>This came up on a LEED project where I had applied table 9.4.5 as conservatively as possible and only considered a portion of the wall to be illuminated at each fixture. </P>
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<P class=MsoNormal>Any help would be greatly appreciated.</P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Franklin Gothic Demi', 'sans-serif'">Robby Oylear, LEED</SPAN><SPAN style="FONT-FAMILY: 'Franklin Gothic Demi', 'sans-serif'; FONT-SIZE: 8pt">®</SPAN><SPAN style="FONT-FAMILY: 'Franklin Gothic Demi', 'sans-serif'"> AP</SPAN></P>
<P class=MsoNormal><I><SPAN style="FONT-SIZE: 10pt">Mechanical Engineer</SPAN></I><I><SPAN style="FONT-FAMILY: 'Times New Roman', 'serif'; FONT-SIZE: 10pt"></SPAN></I></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt">direct: 206.788.4571</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt">cell: 206.354.2721</SPAN><SPAN style="FONT-SIZE: 12pt"></SPAN></P>
<P style="MARGIN-BOTTOM: 3pt" class=MsoNormal><U><SPAN style="COLOR: blue; FONT-SIZE: 7.5pt">www.</SPAN></U><SPAN style="FONT-FAMILY: 'Arial', 'sans-serif'; FONT-SIZE: 8pt"><A title=blocked::http://www.rushingco.com/ href="http://www.rushingco.com/" rel=nofollow target=_blank><SPAN style="COLOR: blue; FONT-SIZE: 7.5pt">rushingco</SPAN><SPAN style="FONT-FAMILY: 'Calibri', 'sans-serif'; COLOR: blue; FONT-SIZE: 7.5pt">.com</SPAN></A></SPAN></P>
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