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Matt,<br>
You are on the right track with the way that you are modeling the air
flow coupling in the building. The trick is to figure out how much air
leaks out. You can either specify it based on hand calculations of the
duct and diffuser sizes or you can use the coupling between TRNSYS and
CONTAM that is in the standard package. Type56 passes the zone
temperature information to Type97 (CONTAM), which calculates the
resulting air flow due to temperature and pressure (height differences
and wind) differences between the zones, and passes it back to Type56.<br>
Cheers,<br>
David<br>
<br>
Matt Fung wrote:
<blockquote
cite="mid:51DF17139C8440439D20DF468574248F0666D188@CONSOL_1.Consol.local"
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<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">TRNSYS users,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">I am dealing with a
situation where the mechanically cooled
air is put into a plenum crawlspace and “leaks” into the living
space via floor registers. Ideally, I would like to put the cooling
ventilation
air into the plenum crawlspace zone that I have created in my TRNBuild
file and
use the coupling airflow feature in TRNBuild to allow the cool air to
“leak”
at the rated flow rate from the crawlspace zone to the living space
zone. Is
this an accurate way to model the desired situation?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p style="margin: 0in 0in 0.0001pt;"><b><font color="black"
face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial; color: black; font-weight: bold;">Matt
Fung</span></font></b><o:p></o:p></p>
<p style="margin: 0in 0in 0.0001pt;"><i><font color="black"
face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial; color: black; font-style: italic;">Associate
Engineer</span></font></i><o:p></o:p></p>
<p style="margin: 0in 0in 0.0001pt;"><font face="Times New Roman"
size="3"><span style="font-size: 12pt;"><a moz-do-not-send="true"
href="http://www.consol.ws/"><span style="text-decoration: none;"><img
id="_x0000_i1025" src="cid:part1.05080907.09090501@tess-inc.com"
border="0" height="49" width="80"></span></a><o:p></o:p></span></font></p>
<p style="margin: 0in 0in 0.0001pt;"><st1:Street w:st="on"><st1:address
w:st="on"><font color="black" face="Arial" size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: black;">7407 Tam
O’Shanter Drive</span></font></st1:address></st1:Street><o:p></o:p></p>
<p style="margin: 0in 0in 0.0001pt;"><st1:place w:st="on"><st1:City
w:st="on"><font color="black" face="Arial" size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: black;">Stockton</span></font></st1:City><font
color="black" face="Arial" size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: black;">, <st1:State
w:st="on">CA</st1:State> <st1:PostalCode w:st="on">95210-3370</st1:PostalCode></span></font></st1:place><o:p></o:p></p>
<p style="margin: 0in 0in 0.0001pt;"><font color="black" face="Arial"
size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: black;">Phone:
209.473.5000 / Fax: 209.474.0817</span></font><o:p></o:p></p>
<p style="margin: 0in 0in 0.0001pt;"><font color="#fd9400"
face="Arial" size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: rgb(253, 148, 0);"><a
moz-do-not-send="true" href="mailto:MFung@ConSol.ws"><font
color="#fd9400"><span
style="color: rgb(253, 148, 0); text-decoration: none;">MFung@ConSol.ws</span></font></a></span></font><o:p></o:p></p>
<p style="margin: 0in 0in 0.0001pt;"><font color="#fd9400"
face="Arial" size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: rgb(253, 148, 0);"><a
moz-do-not-send="true" href="http://www.consol.ws/"><font
color="#fd9400"><span
style="color: rgb(253, 148, 0); text-decoration: none;">www.ConSol.ws</span></font></a></span></font><o:p></o:p></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"><o:p> </o:p></span></font></p>
<p style="margin: 0in 0in 0.0001pt;"><b><font color="black"
face="Arial" size="1"><span
style="font-size: 8.5pt; font-family: Arial; color: black; font-weight: bold;">You
can call me directly at 209.473.5002</span></font></b><o:p></o:p></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"><o:p> </o:p></span></font></p>
</div>
<pre wrap="">
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***********************************************************************
Thermal Energy System Specialists (TESS), LLC
David BRADLEY 2916 Marketplace Drive - Suite 104
Partner Madison, WI 53719
USA
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E-mail: <a class="moz-txt-link-abbreviated" href="mailto:bradley@tess-inc.com">bradley@tess-inc.com</a>
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