I can't overstate the usefulness of drawing yourself a big diagram of your HVAC loops, with your nodes and each component labeled. This is an area that would benefit so much from a quality graphical user interface. When working in idf, you really need to draw your HVAC diagram to have a prayer of success with a complicated system. Debugging hvac loops in EnergyPlus is really hard to do.<br>
<br><div class="gmail_quote">On Feb 12, 2008 3:48 AM, tejes <<a href="mailto:sun55@optusnet.com.au">sun55@optusnet.com.au</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">Hi
everyone, </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">I
use Design Builder as an interface to run <span>EnergyPlus</span>.
Design Builder uses Compact HVAC to model HVAC system. <span>EnergyPlus</span>
takes input data from Design Builder, expands Compact HVAC into an <span>EPlus</span> <span>idf</span> file and runs the
simulation. I observed that conversion of Compact HVAC into an <span>Eplus</span> HVAC system is far from being perfect.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">I
would like to modify the <span>Eplus</span> <span>idf</span>
input file to reflect the actual HVAC system. I am experiencing problem in
developing node details for the six HVAC loops. I have gone through the
input/output reference manual of <span>Eplus</span>. I understand
the concept of loop, node & node diagram but find it hard to develop an
actual node diagram & input relevant data into an <span>idf</span>
file.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">Could
you please suggest is there any example or literature that demonstrates
practically development of node structure and input file for all the six
loops?<span> </span></span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">I
would appreciate your help & suggestion.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">Thanks</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;" lang="EN-US">TEJES
DAS</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
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