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<p class="MsoNormal"><span style="color:#1F497D">The natural pressure level (NPL) is roughly mid-height of the building.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">What plays a role in NPL deviating from mid-height are mainly the openings in the envelope. Naturally, with more openings at the bottom of the building (entrance, backdoors, garage ramps, loading decks, etc.)
the NPL drops down (half-a-floor, or more).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Bass<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-size:8.0pt;font-family:Consolas;color:white">Bass Abushakra, PhD</span></b><b><span style="font-size:8.0pt;font-family:Consolas;color:#44546A"><o:p></o:p></span></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:10.5pt;font-family:Consolas;color:#1F497D"><img width="95" height="27" id="Picture_x0020_0" src="cid:image001.jpg@01D25083.F2969B60" alt="datadigm-LATEST-logo.JPG"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">President and Principal Engineer<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Datadigm, LLC<br>
Technology Innovation Center<br>
10437 Innovation Drive, Suite 141<br>
Wauwatosa, WI 53226-4815<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Email:
</span><a href="mailto:bass@datadigm.us"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">bass@datadigm.us</span></a><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Tel: 414-517-4183</span><span style="font-size:7.0pt;font-family:Consolas;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Adjunct Faculty<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Department of Mechanical Engineering<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Marquette University<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Haggerty Hall, Room H-242<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">1515 W. Wisconsin Ave.<br>
Milwaukee, WI 53233<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Email:
</span><a href="mailto:bass.abushakra@marquette.edu"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">bass.abushakra@marquette.edu</span></a><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.0pt;font-family:Consolas;color:#2E74B5">Tel: 414-288-5893</span><span style="font-size:7.0pt;font-family:Consolas;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Bldg-sim [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Vikram Sami via Bldg-sim<br>
<b>Sent:</b> Wednesday, December 7, 2016 11:41 AM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Stack effect question<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This might be a basic question.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does the internal temperature of a stack affect the neutral pressure height? Would adding heat into a stack cause the neutral pressure point to rise? Instinctively I think it does, but I cannot find the equation for this.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Appreciate any feedback<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Vikram Sami, AIA, BEMP, LEED AP BD+C</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Director of Building Performance
</span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">OLSON KUNDIG</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">159 South Jackson Street, Suite 600, Seattle, WA 98104 USA
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">T
</span><a href="tel:%2B1%20206-340-2545" target="_blank"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:blue">+1 206-340-2545</span></a><span style="font-size:10.0pt;font-family:"Arial",sans-serif">
</span><a href="http://olsonkundig.com/" target="_blank"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:blue">olsonkundig.com</span></a><span style="font-size:10.0pt;font-family:"Arial",sans-serif">
</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Twitter / Instagram @olsonkundig</span><o:p></o:p></p>
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