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<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Guy,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I believe that your suggestion of connecting the PID controller to
the auxiliary cooler would work fine. If you have convergence or cycling problems
with the PID controller, set the gain extremely low, and the integral equal to
the simulation timestep. If you are looking for a cooler with a cooling rate as
input, check TESS type 682 – flow stream loads, or you could model an actual
cooling coil with chilled water. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Best regards,<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Marcus<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-GB style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:navy'>MARCUS JONES, MSc</span></b><span lang=EN-US
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-family:"Arial","sans-serif";
color:#788386'>Energy Department</span><span lang=EN-US style='color:#1F497D'><o:p></o:p></span></p>
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color:#788386'>Sustainable Building Technologies </span><span lang=EN-US
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<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:#788386'>AIT
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#788386'>Österreichisches
Forschungs- und Prüfzentrum Arsenal Ges.m.b.H. </span><span style='color:#1F497D'><o:p></o:p></span></p>
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color:#788386'>Giefinggasse 2 | 1210 Vienna | Austria </span><span lang=EN-US
style='color:#1F497D'><o:p></o:p></span></p>
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color:#788386'>T +43(0) 50 550-6387 | M +43(0) 664 210 24 15 | F +43(0)
50550-6598</span><span lang=EN-US style='color:#1F497D'><o:p></o:p></span></p>
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color:blue'><a href="mailto:marcus.jones@ait.ac.at"><span lang=IT>marcus.jones@ait.ac.at</span></a><u>
</u></span><span lang=IT style='font-family:"Arial","sans-serif";color:#7D7D7D'>|
</span><u><span lang=IT style='font-family:"Arial","sans-serif";color:blue'><a
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Guy THOMAS [mailto:guytho@hotmail.com] <br>
<b>Sent:</b> March 22, 2010 4:08 PM<br>
<b>To:</b> trnsys bradley; trnsys trnsys<br>
<b>Subject:</b> [TRNSYS-users] Trnsys<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Verdana","sans-serif"'>Hello everybody,<br>
I'm passing a ventilation stream in my type 56 zone in Simulation studio (after
have put temperature, flowrate and RH as inputs in TRNBuild). I am passing the
flowrate in type 92 to cool it. And I would like to watch the zone temperature
and control it with an PID controller type 23. <br>
But the type 92 have a control function as input and not a cooling rate.<br>
So, is it possible to put a maximum cooling rate in the parameter of type 92
and connect the control signal from type 23 to type 92 control function (in the
type 23 parameter i have put a control signal varying between 0 and 1) to
control the temperature?<br>
Or is there other solution to cool the air with a PID controller?<br>
Best regards<br>
Guy THOMAS<br>
Etudiant CNAM Paris <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Télécharger
en toute sécurité sur Internet ? <a
href="http://clk.atdmt.com/FRM/go/206608211/direct/01/" target="_new">La
solution avec Internet Explorer 8</a><o:p></o:p></span></p>
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