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Younness,<br>
I think it might be Type93, a component that takes an input and
holds it for one or more time steps (in fact by however many time
steps the user indicated using a parameter) and then "releases" the
input as an output. It can help to stabilize a simulation that has
convergence problems by building back in some of the time delays
that get "simplified out" when we write mathematical models of
physical processes. For example, in building models and thermal
storage models, we assume that mixing of an inlet air or water
stream into the zone or tank node occurs instantaneously and that
thermostats sense the change instantaneously. In reality, the mixing
and sensing both take some finite time. Adding the Type93 "input
delay" is an effective way of building the finite time for mixing
back in. You should take a lot of care in using it because it is
quite easy to stick them all over a simulation and force the system
to converge when in fact there are other problems that should be
addressed. I would recommend only using the Type if you are using a
small timestep such as 1 or 5 minutes.<br>
Kind regards,<br>
David<br>
<br>
<br>
On 11/16/2011 09:18, youness EL FOUIH wrote:
<blockquote
cite="mid:CAA8z4JcQ6e=Y3-3TyvJV2T3dfKvb7=WLjdwKDYCs9F_EYASbZQ@mail.gmail.com"
type="cite">Dear all,<br>
I don't know what this TRNSYS component is (see attached pic), and
I whould be gratefull for any one who can explain to me how it
works.<br>
<br>
Thank you all.<br>
<br>
<br>
-- <br>
<div dir="ltr"><font color="#999999"><span
style="color:rgb(51,51,51)"><b>EL Fouih Younness<br>
</b><font color="#666666">Ingénieur Process - ENIM </font></span></font><span
style="color:rgb(51,51,51)"><font color="#666666">- Rabat</font></span><span
style="color:rgb(51,51,51)"><font color="#666666"> - Promo
2010 <br>
Master Stratégies Énergétiques - Mines Paristech - Paris<br>
</font></span><font color="#666666">Tel : +33 6 48 81 01 13<br>
</font></div>
<br>
<br>
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<br>
<pre wrap="">_______________________________________________
TRNSYS-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a>
<a class="moz-txt-link-freetext" href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a>
</pre>
</blockquote>
<br>
<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>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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