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<p>Pu,</p>
<p> Type56 (for which TRNBuild is the interface) is a thermal model
of the building. Usually the way interzonal air flow is computed
is to couple the Type56 thermal model with either COMIS (through
TRNFlow) or CONTAM (through Type97 or Type98). Both COMIS and
CONTAM are "bulk air flow models." Type56 passes the zone
temperatures to the bulk air flow model, which computes zonal
pressures, air density, etc. and the resulting interzonal air flow
rates and then passes those back to Type56. <br>
</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<p> <br>
</p>
<div class="moz-cite-prefix">On 11/02/2021 04:36, Huijie Pu via
TRNSYS-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2b9678d.4271.17ce001e3ff.Coremail.huijiepu@163.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial">
<div style="margin:0;">Hello,</div>
<div style="margin:0;"> I'm doing a zonal model. Zonal
simulation involves the calculation of mass flow rates between
adjacent zones. in my study, the mass flow rates ṁi,j between
adjacent zones i and j are calculated with Matlab which was
coupled with TRNSYS . However, the calculation of mass flow
rates between adjacent zones involves the air density, mass
and pressure in each zone. But TRNBuild seems to be unable to
output density, mass and pressure. I don't know if I didn't
find it. How can I get these data?</div>
<div style="margin:0;"><br>
</div>
<div style="margin:0;"><span style="font-family: Helvetica,
"Microsoft Yahei", verdana;">kind regards,</span></div>
<div style="margin:0;"><span style="font-family: Helvetica,
"Microsoft Yahei", verdana;">Pu</span></div>
<div style="margin:0;"><br>
</div>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI 53703 USA
P:+1.608.274.2577
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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