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<p>Meghana,</p>
<p> I have far more experience using Type97 with Type56 than Type98.
Type97 is an older, simplified version of CONTAM. However, I think
that the idea is basically the same between the two. <br>
</p>
<p> The way I handle this situation is to add a "simple air handler"
in CONTAM. I then define the locations of the supplies and returns
in CONTAM and associate them all with whatever name I gave the air
handler. Once the *.air file is generated, the flow rates and
temperatures into and out of the supplies and returns will show up
in the input/output list. I realize that it is primarily in the
*.air file that Types97 and 98 differ.</p>
<p>kind regards,</p>
<p> David</p>
<p> <br>
</p>
<div class="moz-cite-prefix">On 10/16/2020 09:44, Kulhalli, M.S. via
TRNSYS-users wrote:<br>
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<p class="MsoNormal">Hello TRNSYS/CONTAM users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am working on the development of a double
skin façade system and possibilities of harvesting thermal
energy from the cavity. I have been able to create simpler
versions of this system in a TRNSYS model (using natural
ventilation mode) and this worked well in combination with
CONTAM using Type56 and Type98. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">One of the usage strategies involves
installing a fan in the cavity for forced ventilation and
eventually, I want to increase the complexity to also allow
coupling of the DSF cavity air to an air sourced heat pump
(for use in building ventilation purposes). It could then
involve modulating the flow rate based on, for example, the
temperature conditions. However, since the airflow and the
thermal models are ‘separately’ dealt with in CONTAM and
TRNSYS respectively, the flexibility I’m able to achieve with
using TRNSYS components for ventilation (Fans in Type 147 and
ASHP in Type 119a) and modulation (using control signals or
equations) does not extend to CONTAM. The best I could do was
add a constant mass or volumetric flow rate fan in CONTAM,
which I could not control from within TRNSYS, if I would like
to modulate the flow rates based on certain conditions.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does anyone have any suggestions or success
stories in making this coupling possible?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Meghana Kulhalli<o:p></o:p></p>
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<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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<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
F:+1.608.278.1475
<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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