<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Camilo,<br>
The simulation does not have enough thermal capacitance to solve - you
need to add a pipe (and perhaps a pump as well) so that the liquid
contained in your loop has enough mass that its temperature changes
over some time instead of instantaneously. Make sure that the pipe is
big enough to hold at least one timestep of fluid at your chosen flow
rate. I would also recommend making your tolerances smaller (they
should be no larger than 0.0001 instead of the default, which is 0.001)
and running with a smaller time step (I usually use 1 or sometimes
minutes)<br>
Kind regards,<br>
David<br>
<br>
<br>
<br>
Camilo Arias wrote:
<blockquote cite="mid:186572.77951.qm@web50209.mail.re2.yahoo.com"
type="cite">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td
style="font-family: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; font-size: inherit; line-height: inherit; font-size-adjust: inherit; font-stretch: inherit;"
valign="top"><span class="Apple-style-span"
style="border-collapse: separate; color: rgb(0, 0, 0); font-family: -webkit-monospace; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 14px; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px;">Hi<br>
<br>
I have de fallow problem: I need take an output simulation temperature
in time "i" as input in the same system in time "i+1". I have a simple
example, a auxiliar cooling unit connect to a new equation unit that
take a energy amount and calculate the outlet temperature, this
temperature is the input to the cooling unit again and the result are
not good. I like know the correct form to solve this problem.<br>
<br>
Thank you<br>
<br>
regards<br>
<br>
Camilo Arias <br>
<br>
Pd: Attach the example<br>
</span><br class="Apple-interchange-newline">
</td>
</tr>
</tbody>
</table>
<br>
<hr size="1"><br>
<font face="Verdana" size="-2">Yahoo! MTV Blog & Rock<br>
¡Cuéntanos tu historia, inspira una canción y gánate un viaje a los
Premios MTV!<br>
Participa aquí <a class="moz-txt-link-freetext" href="http://mtvla.yahoo.com/">http://mtvla.yahoo.com/</a></font>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
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://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users">https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users</a>
</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
P: +1.608.274.2577
F: +1.608.278.1475
E-mail: <a class="moz-txt-link-abbreviated" href="mailto:bradley@tess-inc.com">bradley@tess-inc.com</a>
Web Pages: <a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a> and <a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a>
***********************************************************************</pre>
</body>
</html>