<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Mohamed,</p>
<p> Type56 is only taking care of the thermal energy balance of the
model. As such it doesn't really care how much air goes out of a
zone to the ambient. The ambient is assumed to be unaffected by
the air leaving the building. Where the amount of exfiltration air
matters is on the pressure balance and it is CONTAM/Type97 that
deals with that part of the problem. So in short, there is no need
to tell Type56 about the amount of air leaving the zone; it only
cares about the amount of air coming in and the conditions of that
air.</p>
<p> kind regards,</p>
<p> David</p>
<p> <br>
</p>
<div class="moz-cite-prefix">On 2/2/2023 2:19 PM, mohamed sarmouk
via TRNSYS-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAO1BnBEShfngbEr2p90f53C2FbTc1sRKLnfs=G_HBLcFhJF_ng@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Dear users,<br>
<div>I am working with trnsys and contam, modelling windows with
two way openings.</div>
<div>Contam provides results such infilitrations (INF) and
exfiltrations (EXF) but TRNSYS takes into account only
infiltrations.</div>
<div>In order to extract air from zones, can I specify a
negative infiltration ? or as I intend to do is sum up the
infiltration and exfiltration and define it as infiltration in
Type56 ?</div>
<div><br>
</div>
<div>Thank you.</div>
<div><br>
</div>
<div>Mohamed. </div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
TRNSYS-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:TRNSYS-users@lists.onebuilding.org">TRNSYS-users@lists.onebuilding.org</a>
<a class="moz-txt-link-freetext" href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a>
</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy System 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>
</body>
</html>