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Sandeep,<br>
I would recommend contacting your TRNSYS distributor with your
questions about the PV efficiency. Be careful if you are computing
the efficiency of the PV using the power output and the solar
radiation input; the solar radiation input is in kJ/h.m2 and the
output is in W. <br>
<br>
The EES distributable cannot be modified as it is a packaged
stand-alone tool. Also, the EES tool is designed only to compute the
values of the Type194 parameters; it does not make any estimate of
the PV performance.<br>
kind regards,<br>
David<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 11/03/2015 13:05, Sandeep Singh
Chahal wrote:<br>
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<p><font face="Calibri">Hello TRNSYS user,</font></p>
<p><font face="Calibri"> </font><font face="Times New Roman"> </font></p>
<p style="margin: 0in 0in 10pt;"><font face="Calibri">I am using
194 and after plugging in the values provides by manufacture
in EES file ( by clicking on the left lower corner magic
button ). The five parameters in EES file is calculated
without any error but still, <span style="mso-spacerun:
yes;"> </span>It’s efficiency is very close to zero
throughout the year. Can anyone please help what should I do
to get proper efficiency?
</font></p>
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<p style="margin: 0in 0in 10pt;"><font face="Calibri">Also, in
Photovoltaic example ( pv-inverter type 194b ) efficiency is
very close to zero and after plugging in the values in EES
file it gives this error “24 parameters are required and 29
parameters where specified” ( Mr. David, Mentioned that I
have to contact software distributor regarding parameters
problem ). However, I was just wondering if I can make some
changes in EES file that may work. I have tried to make
changes in EES file but it doesn’t allow me to make any
change. Is there any way to make changes in EES file or I
have to have contact the distributor?
<span style="mso-spacerun: yes;"> </span></font></p>
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<p>Thanks,</p>
<p>Sandeep Chahal</p>
<p>Research Assistant </p>
<p>UAB School of Engineering</p>
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<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>
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