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Hello,<br>
<br>
I did what you described and simplified that problem to its core.<br>
<br>
Please have a look at it again<br>
<br>
thanks,<br>
<br>
Michael<br>
<br>
Am 19.06.2012 20:37, schrieb David BRADLEY:
<blockquote cite="mid:4FE0C6E2.4010703@tess-inc.com" type="cite">
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Michael,<br>
I have run into this problem as well, particularly in Trnsys16
and I was not ever able to resolve it. In the end, I had to
increase my flowrate through the floor enough (or segment the
floor enough) so that the flow rate I was giving got above that
threshold. My suspicion is that Type56 calculates the required
minimum flow at one temperature and then corrects the actual
flowrate for some temperature dependent property during the
simulation. If your example is simple enough and you are willing,
please send it our way so that we can try and track down the
cause!<br>
Best,<br>
david<br>
<br>
<br>
On 6/18/2012 16:24, Michael Döbele wrote:
<blockquote cite="mid:4FDF9C91.6090400@hochschule-bc.de"
type="cite">Dear TRNSSYS User, <br>
<br>
i am trying to run an active layer with an specific massflow
rate of 15 kg/h m² (absolute value 654.15 kg/h). TRNBuild
calculates a minimum allowed massflow rate of 10.25 kg/h. (446
kg/h) ....so far so good. <br>
But when I set this massflow rate in TRNSYS Studio via Input to
the wanted 654.15 kg/h I get following error <br>
<br>
"specific fluid mass flow of active layer in surface 2 below
minimum <br>
value of16.26/m2h, increase the minimum mass flow rate or use <br>
autosegmentation feature of TRNBuild for subdividing the
surface." <br>
<br>
This is a really strange behavior. The massflow criteria varies
and seems to depend on the inlet temperature.. I also tried
autosegmentation - I didn´t help, I got the same error message.
<br>
Please help me out here.. <br>
<br>
Thank you <br>
<br>
Michael Döbele <br>
<br>
<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
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