<div dir="ltr"><br><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Tilak Sunwar</b> <span dir="ltr"><<a href="mailto:s3392420@student.rmit.edu.au">s3392420@student.rmit.edu.au</a>></span><br>
Date: Wed, Apr 30, 2014 at 9:50 AM<br>Subject: Fwd: TRNSYS Support Inquiry - Convertor/Electrolyser<br>To: Tilak Sunwar <<a href="mailto:tilaksunwar@gmail.com">tilaksunwar@gmail.com</a>><br><br><br><div dir="ltr"><br>
<br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Jihane Assaf</b> <span dir="ltr"><<a href="mailto:s3467254@student.rmit.edu.au" target="_blank">s3467254@student.rmit.edu.au</a>></span><br>
Date: 30 April 2014 09:41<br>Subject: TRNSYS Support Inquiry - Convertor/Electrolyser<br>To: <a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a><br>Cc: Tilak Sunwar <<a href="mailto:s3392420@student.rmit.edu.au" target="_blank">s3392420@student.rmit.edu.au</a>><br>
<br><br><div dir="ltr"><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 10pt" class="MsoNormal"><font size="3"><font color="#000000"><font face="Calibri">Dear Sir / Madam,</font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 10pt" class="MsoNormal"><font color="#000000" size="3" face="Calibri"> </font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 10pt" class="MsoNormal"><font size="3"><font color="#000000"><font face="Calibri">We are modelling a Photovoltaic/Convertor/Electrolyser/Hydrogen
Fuel Cell in TRNSYS. We are at the stage of setting inputs to Convertor and
Electrolyser where the below questions arise:</font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font color="#000000"><span><span><font size="3" face="Calibri">-</font><span style="font:7pt/normal "Times New Roman";font-size-adjust:none;font-stretch:normal">
</span></span></span><font face="Calibri"><font size="3">For the convertor Inputs: We have Uin, Uout-set,
and P (attached file). I believe that Uin shall be the voltage at maximum power point of the
photovoltaic, P shall also be the power at maximum power point of the
photovoltaic, right !? As for Uout-set, I believe that it should be the optimal
voltage at which the electrolyser works, right ! ? </font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font color="#000000"><span><span><font size="3" face="Calibri">-</font><span style="font:7pt/normal "Times New Roman";font-size-adjust:none;font-stretch:normal">
</span></span></span><font face="Calibri"><font size="3">So as for the electrolyser, we had a feedback
from our supervisor that the electrolyser has as parameters Ucut-in, and Umax,
and it is better to operate the electrolyser at 80% of its Umax, in order to
have the optimal efficiency of it.</font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font face="Calibri"><font size="3"><font color="#000000">However, as we could see in TRSYS (attached
file) that Umax for electrolyser is not defined in the parameters, and
that<span> </span>the<span>
</span>Inputs for Electrolyser are only its current (IELY), while its voltage
(UELY) is an output, and that in some of TRNSYS examples, they have put UELY as
input to the Uout-set of the electrolyser . </font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font size="3"><font color="#000000"><font face="Calibri">May we have some clarifications of how this
works, and how we can operate the electrolyser at optimal voltage and current,
especially that the simulation is getting stuck, most probable because of an
incorrect selection of the operating current /voltage of the electrolyser, and
maybe a mismatch with the Inputs of the convertor !?</font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font color="#000000" size="3" face="Calibri"> </font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font size="3"><font color="#000000"><font face="Calibri">I appreciate your support,</font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font color="#000000" size="3" face="Calibri"> </font></p><font color="#000000" size="3" face="Times New Roman">
</font><p style="margin:0cm 0cm 0pt 36pt"><font size="3"><font color="#000000"><font face="Calibri">Thanks and Best Regards,</font></font></font></p><font color="#000000" size="3" face="Times New Roman">
</font><div style="margin:0cm 0cm 10pt 36pt"><font size="3"><font color="#000000"><font face="Calibri">Jihane Assaf</font></font></font></div><div style="margin:0cm 0cm 10pt 36pt"><font size="3"><font color="#000000"><font face="Calibri">RMIT, Melbourne, Australia</font></font></font></div>
<span class="HOEnZb"><font color="#888888">
<font color="#000000" size="3" face="Times New Roman">
</font></font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><div>Tilak Sunwar</div><div>Student ID. 3392420</div><div>RMIT University<br></div><div><br></div><div>
<br></div><div><i>"Shaping the path to sustainable future"</i></div>
</div>
</font></span></div>
</div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><div><font color="#333399" style="background-color:rgb(255,255,255)"></font> </div><div><span style="color:rgb(51,51,51);font-family:'lucida grande',tahoma,verdana,arial,sans-serif;line-height:17px">"Wisdom you don’t get in colleges, schools, universities, nowhere. Where do you get it, the wisdom? You get it through your spirit, which gives you a complete idea as to what is right and what is wrong."</span><br style="color:rgb(51,51,51);font-family:'lucida grande',tahoma,verdana,arial,sans-serif;line-height:17px">
<span style="color:rgb(51,51,51);font-family:'lucida grande',tahoma,verdana,arial,sans-serif;line-height:17px">H.H Shri Mataji Nirmala Devi, </span><span style="color:rgb(51,51,51);font-family:'lucida grande',tahoma,verdana,arial,sans-serif;line-height:17px">August 28,1994, Cabella, Italy</span><br style="color:rgb(51,51,51);font-family:'lucida grande',tahoma,verdana,arial,sans-serif;line-height:17px">
<br></div>
</div>
</div>