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Ahmed,<br>
The problem is with the variable limits in the Type56 proforma.
What you need to do is open (double click on) the Type56 proforma in the
Direct Access tool on the right hand side of the Studio screen (as
opposed to double clicking on the Type56 icon in your project). Switch to
the "Variables" tab and click the "Variables (Parameters,
Inputs, Outputs, Derivatives)" button. Switch to the
"Parameters" tab and modify the "Max." field of the
second parameter (star network calculation switch) to be 100. Save your
change and exit the proforma.<br><br>
The last slight complication is that when you change a proforma,
your change is NOT reflected in your projects. You have to open your
project, click once on the Type56 icon, and select "Replace"
from the "Edit" menu and browse to find Type56. This replaces
the proforma in your project with the proforma that you
modified.<br><br>
Kind regards,<br>
David<br><br>
<br>
At 08:27 4/27/2006, ahmed daoud wrote:<br>
<blockquote type=cite class=cite cite=""><font face="arial" size=2>Dear
Monika,<br>
</font> <br>
<font face="arial" size=2>in the manual it is written:<br>
</font><font size=2 color="#0000FF"><br>
Specific zones may be calculated with combined convective and radiative
heat surface coefficients. The No. of zones with star network calculation
is given by Abs(PAR(2))-100,<br><br>
counting from the first specified zone. The following zones are
calculated with surface film coefficients (HFRONT/HBACK,
HINSIDE/HOUTSIDE) as combined heat<br><br>
transfer coefficients. Values of PAR(2) below 1 indicate one calculation
of star network per simulation, above and equal 1 -> Calculation of
star network every time-step.<br><br>
</font><font face="arial" size=2>As I am understanding to specify to
trnsys not to use the star network in my simulation I must specify a
PAR(2)=100 but this parameter dosn't accept an integer > 1.<br>
</font><font size=2 color="#0000FF"><br>
<br><br>
</font><font face="arial" size=2>Can you please explain me?<br>
</font><font size=2 color="#0000FF"><br>
<br><br>
</font><font face="arial" size=2>Ahmed<br>
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