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Carlos,<br>
You can do this but in a slightly more indirect way. Say that you
have a 3 node tank and that the temperature of the 3 nodes are given
by outputs 21, 22, and 23 of UNIT 35. You will need to write an
equation such as:<br>
<br>
EQUATIONS 1<br>
tempToWatch = isRun1*[35,21] + isRun2*[35,22] + isRun3*[35,23]<br>
<br>
isRun1, isRun2 and isRun3 are all new variables that will be defined
both in the input file and in the parametric table. You can write:<br>
<br>
CONSTANTS 3<br>
isRun1 = 1<br>
isRun2 = 0<br>
isRun3 = 0<br>
<br>
for each run that you make, all three of the constants must be set
and only one of them should be set to a value of 1; all others
should be zero.<br>
<br>
Lastly, you will need to go through the deck and replace the text
[35,21] with the variable tempToWatch.<br>
Kind regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 8/28/2013 05:30,
<a class="moz-txt-link-abbreviated" href="mailto:C.ARBOLEDA@sanden-europe.fr">C.ARBOLEDA@sanden-europe.fr</a> wrote:<br>
</div>
<blockquote
cite="mid:OF0750187E.200AEA83-ONC1257BD5.003739AB-C1257BD5.0039B53C@sanden-europe.fr"
type="cite"><font size="2" face="sans-serif">hi,</font>
<br>
<br>
<font size="2" face="sans-serif">I'm trying to simulate a DHW
system,
and I would like to make a parametric run using TRNedit. </font>
<br>
<font size="2" face="sans-serif">In this parametric study, I would
like
to change the node of my storage tank which is use to regulate
my DHW system.</font>
<br>
<br>
<font size="2" face="sans-serif">In TRNedit, the TRNSYS outputs
are referenced
like this: [Unit#, Output#]</font>
<br>
<font size="2" face="sans-serif">Is it possible to replace the
Unit#
or the Output# by a constant or an equation? </font>
<br>
<br>
<font size="2" face="sans-serif">Example:</font>
<br>
<br>
<font size="2" face="sans-serif">TANK: </font><font size="2"
face="Courier New">UNIT
35 TYPE 534</font>
<br>
<br>
<font size="2" face="sans-serif">[35,21] is the temperature of the
1st
node of my tank</font>
<br>
<br>
<font size="2" face="sans-serif">I want to replace [35,21] by
[35,x],
x will vary every new simulation following my parametric table.</font>
<br>
<br>
<font size="2" face="sans-serif">I do not undertand very well the
properties
of the object: [Unit#, Output#]</font>
<br>
<br>
<font size="2" face="sans-serif">If it's not possible is there
another
solution to this problem?</font>
<br>
<br>
<font size="2" face="sans-serif">Thank you in advance for your
answer</font>
<br>
<br>
<font size="2" face="sans-serif">Carlos Arboleda</font>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</pre>
</blockquote>
<br>
<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
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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