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<p>Adnan,</p>
<p> Yes, you can certainly use the equation that you propose. In
TRNBuild set the inside convection coefficient for the wall(s) in
question to "input" (as opposed to "constant value" or "schedule")
and add the wall surface temperature(s) to your Type56 outputs.
Define an equation in the Studio for the convection coefficient
and pass the result back to Type56. You may well need to use a
short timestep (and possibly a time delay such as Type93) in order
for Type56 and the equation to converge on a solution. You might
also look in the Type56 reference manual because it already has a
time-varying interior convection coefficient model built in. You
are able to set the coefficients that the model uses by clicking
on the "properties" button in the TRNBuild "project" window.
You'll also have to select "internal calculation" in the wall
typemanager for each wall that you want to be affected by the
algorithm.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 08/16/2016 22:14, adnan rasheed via
TRNSYS-users wrote:<br>
</div>
<blockquote
cite="mid:CAG9tXZj+JFv=eCwQkEToUk0dCNkbv1-5dStPtc_3sXnikbBdmA@mail.gmail.com"
type="cite">
<div dir="ltr">Hello everyone,
<div><br>
</div>
<div>i want to use temperature dependent correlation of inside
convective heat transfer coefficient of the wall in TRNSYbuild
rather than to use fixed default value. As inside coefficient
depends upon difference of the air temp inside and wall
internal surface temperature. i want to use TRNSbuild surface
temperature output as an input for defining </div>
<div>inside convective heat transfer coefficient = 1.247
(Tair-Tsurf)^1/3 can i use these inputs from TYPE 56 in
simulation studio and then after putting equation again insert
in type 56. or any other way to handle this problem.</div>
<div><br>
</div>
<div>Thanks you for killing your time to read my problem.</div>
<div><br>
</div>
<div>Thanks </div>
<div>Adnan </div>
</div>
<br>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
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>
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