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<font size="-1"><font face="Arial">Yes, that's the way it is.<br>
In one of our buildings we are using a 100% OA system and in another
with almost 50% OA where we are not cooling the air with a
refrigeration based cooling system for most part of the year.<br>
It uses Earth Air Tunnels Heat Exchanger and therefore we are able to
simply push through all the OA and release it in various zones via a
displacement ventilation system and finally exhaust it out above the
occupancy zone.<br>
I feel that the OA for a baseline system must try and match same
ventilation rate and quality that the proposed system is meant to
provide!<br>
90.1 Appendix G confirms that as Mr. Miller pointed out.<br>
Best,<br>
Neeraj<br>
<br>
Neeraj Kapoor<br>
t: +91.99581.70018<br>
Kalpakrit Sustainable Environments PVt. Ltd.<br>
New Delhi, India<br>
<br>
</font></font>Vikram Sami wrote:
<blockquote
cite="mid:55BA83825A482144A8637F9CAA981F761553F97E@las-mail.lordaecksargent.internal"
type="cite">
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<p class="MsoNormal"><span style="color: rgb(0, 0, 180);">I always
assumed that if you
went to 30% extra, you kept the baseline at 100%, and the designed
building at
130%, but after reading this, it does seem to make sense that you would
increase both occurrences. </span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);">Can anyone
from the EA Tag chime
in?</span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<div>
<p class="MsoNormal" style=""><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: black;">Vikram
Sami,</span></b><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(0, 0, 180);">
</span><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: black;">LEED
AP</span><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(0, 0, 180);">
<br>
</span><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: black;">Direct
Phone 404-253-1466 | Direct Fax 404-253-1366</span><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(0, 0, 180);">
</span></p>
<p class="MsoNormal" style=""><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: maroon;">L</span></b><b><span
style="font-size: 10pt; font-family: "Garamond","serif"; color: maroon;">ORD</span></b><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: maroon;">,
A</span></b><b><span
style="font-size: 10pt; font-family: "Garamond","serif"; color: maroon;">ECK</span></b><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: maroon;">
& S</span></b><b><span
style="font-size: 10pt; font-family: "Garamond","serif"; color: maroon;">ARGENT</span></b><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: maroon;">
A</span></b><b><span
style="font-size: 10pt; font-family: "Garamond","serif"; color: maroon;">RCHITECTURE</span></b><b><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(0, 0, 180);"><br>
<br>
</span></b><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(0, 0, 180);"></span></p>
</div>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<div>
<div
style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
<a class="moz-txt-link-abbreviated" href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Nathan
Miller<br>
<b>Sent:</b> Thursday, November 19, 2009 4:42 PM<br>
<b>To:</b> 'Rimes, Christie'; 'Steven Rutter';
<a class="moz-txt-link-abbreviated" href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] Baseline Modeling for LEED</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I
disagree, I believe the models
should be same-same on ventilation rates. See section 90.1 (2004)
Section
G3.1.2.5. It states:</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">“Minimum
outdoor air
ventilation rates should be the same for the proposed and baseline
building
designs.”</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">In my
projects (including those
that include 30% additional outside air), I have always used the same
outdoor
air flow rates, unless I was taking credit for demand control
ventilation in
the proposed case (see the exception allowed in that same ASHRAE
section). </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-size: 12pt; font-family: "Franklin Gothic Demi","sans-serif"; color: rgb(31, 73, 125);">Nathan
Miller</span><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);"></span></p>
<p class="MsoNormal"><i><span
style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">Senior
Energy Engineer/Mechanical Engineer</span></i></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">direct:
206.788.4577</span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">fax:
206.285.7111 </span><span style="color: rgb(31, 73, 125);"></span></p>
</div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<div
style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
<a class="moz-txt-link-abbreviated" href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Rimes,
Christie<br>
<b>Sent:</b> Thursday, November 19, 2009 1:32 PM<br>
<b>To:</b> Steven Rutter; <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Bldg-sim] Baseline Modeling for LEED</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">In my
experience you do
not increase the baseline energy model as you are being awarded
(gaining that
point) when you achieve the ventilation credit. There are a few similar
situations in LEED where by achieving one credit will prevent you from
achieving
another but this happens to everyone so it works out to be somewhat
fair. </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><img
id="_x0000_i1026" src="cid:part1.03010908.05080103@yahoo.com"
alt="Christie Rimes,
Building Simulation Analyst
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
Direct: 415.402.2727
Main Tel: 415.398.3833
Fax: 415.433.5311
website: http://www.wspfk.com
vCard: http://vcards.wspfk.com/vcardloader.php?filename=flackkurtz-christie-rimes-wspfk-com-1255981339.vcf
image: "
height="170" width="591"></span></p>
</div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<div
style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
<a class="moz-txt-link-abbreviated" href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Steven
Rutter<br>
<b>Sent:</b> Thursday, November 19, 2009 1:25 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> [Bldg-sim] Baseline Modeling for LEED</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">All,</p>
<p class="MsoNormal">There is a credit in LEED (EQc2.0) that involves
increasing
the required ventilation rate by 30%. In trying to achieve this credit,
the amount of energy would have to increase to condition that
additional 30%
OSA. Does anyone know if you are supposed to increase the baseline
energy
model’s ventilation rate so it has the same ventilation rate as the
proposed building? Thank you in advance for your help.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b><span
style="font-family: "Tahoma","sans-serif"; color: gray;">Steven
Rutter, LEED</span></b><b><sup><span
style="font-size: 9pt; font-family: "Tahoma","sans-serif"; color: gray;">®</span></sup></b><b><sup><span
style="font-family: "Tahoma","sans-serif"; color: gray;"> </span></sup></b><b><span
style="font-family: "Tahoma","sans-serif"; color: gray;">AP, EIT</span></b></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal" style="margin-bottom: 12pt;"><img
id="Picture_x0020_1" src="cid:part2.01010103.06040904@yahoo.com"
alt="cid:665444518@16012009-36B3" height="44" width="180"><br>
<b><span style="font-family: "Tahoma","sans-serif"; color: gray;">3850
Happy
Lane|Sacramento, CA 95827<br>
O:916-368-0336|F:916-368-0337|C:916-717-7484</span></b><span
style="font-family: "Times New Roman","serif";"></span></p>
<p class="MsoNormal" style=""><span
style="font-size: 18pt; font-family: Webdings; color: green;">P</span><span
style="font-size: 12pt; font-family: "Times New Roman","serif";"> </span><span
style="font-size: 7.5pt; font-family: "Arial","sans-serif"; color: green;">Please
consider the environment before printing this email.</span><span
style="font-size: 12pt; font-family: "Times New Roman","serif";"> </span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
</div>
</blockquote>
<br>
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