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as long as a lighting system has been designed:<br>
<br>
according to ashrae/appendix g the uniform/whole building method
applies a uniform lpd to the BASELINE building only while the
PROPOSED uses what is designed - so long as the design is based on
the whole building area method. the lpd of the PROPOSED design
should not be applied uniformly to the PROPOSED building
simulation. <br>
<br>
see appendix g, table g3.1, section 6 lighting, subsection b, page
173 (2004), page 179 (2007). user's manual pages g-17/18 (2004
& 2007)<br>
<br>
i would suggest to quote table g3.1 when replying to the reviewer's
comment. i have had reviewer's tell me i have to use the
space-by-space method in a simulation for both proposed and baseline
buildings. this is not correct. what is correct is that the
simulation reflect the methodology used by the lighting designer.
if the lighting design is based on the whole building method then
the whole building method maximum lpd is used in the BASELINE
building. if the design is based on the space-by-space method then
the space-by-space maximum lpd for each space type is used in the
BASELINE building. in either case the PROPOSED building should
reflect what is designed. by 'what is designed' i mean look at the
lighting plans, lighting schedules, and enter the lpd for each
space/zone (thermal block) based on the number of fixtures, watts
per fixture, and square feet of space.<br>
<br>
<br>
<br>
On 5/22/12 2:15 PM, Sami, Vikram wrote:
<blockquote
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The
building area method applies a uniform LPD to the entire
building. If you do that in your baseline, you need to apply
a uniform LPD to you proposed building too. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In
general, I don’t recommend using the building are method –
the space by space method is a better approach. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="text-autospace:none"><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#DCAA2C"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">Vikram
Sami</span></b><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">,
LEED AP BD+C<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">Sustainable
Design Analyst<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">1315
Peachtree St. NE, Atlanta, GA 30309<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">t:
404-443-7462 f: </span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray"
lang="ES">404.892.5823 </span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">
e: <a class="moz-txt-link-abbreviated" href="mailto:vikram.sami@perkinswill.com">vikram.sami@perkinswill.com</a> </span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a
moz-do-not-send="true"
href="http://www.perkinswill.com/"><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray;text-decoration:none">www.perkinswill.com</span></a></span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray"><o:p></o:p></span></p>
<p class="MsoNormal"
style="margin-bottom:3.0pt;text-autospace:none"><b><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">Perkins+Will.</span></b><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:gray">
</span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#ADD425">Ideas
+ buildings that honor the broader goals of society</span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:green"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";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"><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"">
<a class="moz-txt-link-abbreviated" href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>On
Behalf Of </b>Oscar B.<br>
<b>Sent:</b> Tuesday, May 22, 2012 4:38 PM<br>
<b>To:</b> eQuest Users<br>
<b>Subject:</b> [Equest-users] Building area method
ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">How
does the building area method work?<o:p></o:p></span></p>
<p class="MsoNormal" id="yui_3_2_0_20_1337697656927248"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal" id="yui_3_2_0_20_1337697656927251"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">I
just got a comment from the review team for a project
pursuing LEED certification.<o:p></o:p></span></p>
<p class="MsoNormal" id="yui_3_2_0_20_1337697656927254"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal" id="yui_3_2_0_20_1337697656927257"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">I
used the building area method for the baseline case and
in the proposed case I put the <span class="mark">LPD</span>
from the lighting design. However they told me that the
same method has to be used in both cases.<o:p></o:p></span></p>
<p class="MsoNormal" id="yui_3_2_0_20_1337697656927260"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal" id="yui_3_2_0_20_1337697656927263"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Any
help would be appreciate.<o:p></o:p></span></p>
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