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<p>Haydar Kepekci -</p>
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<p>And please avoid using offensive language in email messages.</p>
<p>Regards,</p>
<p>Tim</p>
<p> </p>
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<pre>---<br />Timothy P. McDowell
Executive Vice President
Thermal Energy System Specialists, LLC
22 N Carroll St, Suite 370
Madison, WI 53703
608-274-2577</pre>
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<p>On 2014-11-20 09:23, haydar kepekçi wrote:</p>
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<p dir="ltr">Dont send me e- mail !! I dont want to see ur words about Fucking trnsys !!!</p>
<p dir="ltr">Sent using <a href="https://cloudmagic.com/k/d/mailapp?ct=pa&cv=5.1.6.5&pv=4.3">CloudMagic</a></p>
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<div class="cm_quote" style="color: #787878;">On Per, Kas 20, 2014 at 4:32 PM, Ben Heymer <<a href="mailto:bheymer@gmail.com">bheymer@gmail.com</a>> wrote:</div>
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<p dir="ltr">You should look through your "Result" file for the source of the error. <br /><br /> A common cause of errors of this type is convergence. Make sure you <br /> have enough volume in your water loop for at least 1 timestep of water <br /> flow. Sometimes it's also helpful to connect the mass flow output of <br /> the pump right back to the mass flow input. <br /><br /> As a last resort, you can relax the convergence parameters and error <br /> thresholds in the control cards. <br /><br /> Ben Heymer, PE <br /><br /> On Thu, Nov 20, 2014 at 3:52 AM, Michael Stochniol <br /> <stochnio@mail.hs-ulm.de> wrote: <br /> > Hallo everyone, <br /> > <br /> > im trying to create a control function using equations with logic operators for the control of a variable speed pump, in order to adjust the massflow trough the pump. I wrote a control funktion and plotted it without connecting it to the pump and it seemed to work right. But if i am conecting it to the pump my simulation freezes after around 700 timesteps or less. I am trying to create solar domestic hot water system. The question is, is it possible to create this kind of control circuit with equations ? I have similar problems with every control loop i am trying to create this way. The math should work but implemented in TRNSYS (TRNSYS 17) the simulation stick somewhere. <br /> > <br /> > I am no experienced user so maybe someone could give my some advise how to implement this kind of control functions right? <br /> > <br /> > i am very grateful for any help or ideas. <br /> > <br /> > thanks in advance <br /> > <br /> > Michael Stochniol <br /> > _______________________________________________ <br /> > TRNSYS-users mailing list <br /> > TRNSYS-users@lists.onebuilding.org <br /> > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org <br /> _______________________________________________ <br /> TRNSYS-users mailing list <br /> TRNSYS-users@lists.onebuilding.org <br /> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org </p>
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