<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Patrick,<br>
This is a known bug and one that we are working on solving. The
problem appears to come from a dynamic calculation of the transition
between laminar and turbulent flow which (to my understanding)
includes a correction for the actual water temperature when
performed during a simulation in Type56 but for an assumed water
temperature when performed in TRNBuild. I have found that if you
increase the mass flow rate by a bit then you get away from the
problem. It sounds, however, as though this hasn't worked in your
case. If the project is not too complicated, please send it and we
can have a closer look internally.<br>
Kind regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/18/2012 05:57, Patrick Fabriek
wrote:<br>
</div>
<blockquote
cite="mid:E99AC4EB2E930944BA2D0D0CAB19BA450A2079@SRV364.tudelft.net"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<style id="owaParaStyle">P {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
</style>
<div style="direction: ltr;font-family: Tahoma;color:
#000000;font-size: 10pt;">
<p>Dear Trnsys users,</p>
<p> </p>
<p>I have been using Trnsys for a months now and trying to model
a simple single floor Zero energy house recently build in
Rotterdam.</p>
<p> </p>
<p>Im now at the point where i am defining the floor heating
with active layer in TRNBuild but i get this error : Specific
fluid mass flow of active layer in surface 1 below minimum
value of 12,98 kg/m2h.
</p>
<p>The minimum allowed inlet specific mass flowrate is valued at
16.68 kg/ h m2 so this error is very strange. I put the
desired specific flow rate at 17.</p>
<p> </p>
<p>I have been increasing the massflow or lowering it still give
the error.</p>
<p>Does trnsys studio recalculate specific value somewhere else?
anyone has a another solution for implementing floor heating.</p>
<p> </p>
<p>Regards,</p>
<p> </p>
<p>Patrick F </p>
<p> </p>
<p> </p>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<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>
</body>
</html>