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<font size="-1"><font face="Arial">Dear Karol, <br>
<br>
Maybe you can increase the number of time step in CONTAM, before
creating your TRNSYS input file. (Simulation - Set Simulation
Parameter - AirFlow Numerics Tab)<br>
You may also use a differential controler (Type2) </font></font><font
size="-1"><font face="Arial">instead of using an equation like
GT(T_1,24,) ton control your input.<br>
<br>
best regards<br>
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<td colspan="2"><font color="#000000" face="CALIBRI"
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Simulations Thermiques Dynamiques</font></td>
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Le 23/12/2011 08:45, Karol Bandurski a écrit :
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<p class="MsoNormal">Hi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I have modeled natural
ventilated house using Contam and type 56.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">One of inputs of type 97
(CONATM) is ‘Adjustable opening: ZoneA/<1>->ambt/
<path16>’. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I control this value
depending on the ZoneA temperature:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">‘Adjustable opening:
ZoneA/<1>->ambt/ <path16>’=1 for
T_ZoneA>24 C<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">using Equation
(gt(T_A,24)).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But I get error that
maximum number of warnings: <i>‘The inputs to the listed
units have not converged at this timestep. The values at
the last iteration will be used and the simulation will
proceed’</i> allowed per simulation has been exceeded.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have tried to use
type93 between type 97 and Equation with 1 or 100 timestep
stored, but error still appear.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Parameters of simulation
(I wouldn’t like to change it, especially timestep):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Timestep=0.1 h<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Tolerance
convergence=0.001<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Before ‘WARNNING’: 30<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Before ‘ERROR’: 30<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Could you help me?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Christmas Regards!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">Karol Bandurski </span><span
style="mso-fareast-language:PL" lang="EN-US">MSc.</span><span
style="mso-fareast-language:PL" lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="background:white;mso-fareast-language:PL"><a
moz-do-not-send="true" href="http://www.ee.put.poznan.pl/"
target="_top"><span
style="color:windowtext;text-decoration:none"
lang="EN-US">Institute of Environmental Engineering</span></a></span><span
style="background:white;mso-fareast-language:PL"
lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="background:white;mso-fareast-language:PL"
lang="EN-US">Poznan University of Technology<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="background:white;mso-fareast-language:PL"><a
moz-do-not-send="true" href="http://www.ee.put.poznan.pl/"><span
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lang="EN-US"><o:p></o:p></span></p>
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style="background:white;mso-fareast-language:PL"><a
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<p class="MsoNormal"><o:p> </o:p></p>
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<pre wrap="">_______________________________________________
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