<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Sotiris,<br>
If your absorption chiller is producing chilled water at a particular
flow rate and is connected to a series of fan coils then the only way
to increase the capacity of the fan coils is to modify their air-side
flow rate and to put on a larger absorption chiller. Changing the size
of the absorption chiller involves changing the external files that are
referenced by Type107.<br>
<br>
As for convergence, if you are getting a warning saying that
convergence could not be reached, that means that TRNSYS was unable to
solve your system to within the specified tolerances at that time step.
If you are getting a few such warnings throughout an annual simulation,
it is not something to be concerned about. If you are getting a lot of
those warnings then probably the system or the controls are not well
enough defined. I would recommend that you read a few sections of the
documentation to get a good understanding of how TRNSYS is trying to
solve your system:<br>
<br>
Section 7.3.17 of the 07-TRNEdit manual "the SOLVER statement"<br>
Section 5.1 of the 05-Mathematical Reference manual (the first section
under "controllers")<br>
<br>
Kind regards,<br>
David<br>
<br>
<br>
SOTIRIS KONSTANTELOS wrote:
<blockquote cite="mid:15096.21529.qm@web24008.mail.ird.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">Dear TRNSYS users,<br>
<br>
I'm trying to simulate a solar powered cooling system, which uses an
absorption chiller (type 107), in order to produce chilled water for
the fan coils which are connected to the building.The problem is that i
cannot increase the total cooling rate (fan coil's output) no matter
what i do.What parameters should i change and where should i focus
on?Is it probable an error between the components (at connections)?<br>
<br>
There is also another broblem.Sometimes error manager warns me about a
convergence problem in some units.How can i fix this problem?Maybe from
the control cards menu?What exactly is this convergence problem, which
is fixed if i use default parameter values?<br>
<br>
My regards,<br>
Sotiris<br>
</td>
</tr>
</tbody>
</table>
<br>
<hr size="1"><font face="Arial" size="-1"> Χρησιμοποιείτε Yahoo!<br>
Βαρεθήκατε τα ενοχλητικά μηνύ ματα (spam); Το Yahoo! Mail διαθέτει την
καλύτερη δυνατή προστασία κατά των ενοχλητικών μηνυμάτων <br>
<a moz-do-not-send="true"
href="http://login.yahoo.com/config/mail?.intl=gr">http://login.yahoo.com/config/mail?.intl=gr</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 22 N. Carroll Street - Suite 370
Partner Madison, WI 53703
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>