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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Dear Kaouther,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">we have good experience using the Nostandard Type 399. Here is a documentation of the type:
<a href="http://trnsys.de/download/de/ts_type_399_en.pdf">http://trnsys.de/download/de/ts_type_399_en.pdf</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">And an order sheet if you are interested:
<a href="http://trnsys.de/download/en/TS_Nostandard_Ordersheet_en.pdf">http://trnsys.de/download/en/TS_Nostandard_Ordersheet_en.pdf</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Best<br>
Jakob<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">__________________________________________________________________________________________________<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">Jakob Merk M.Sc.<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">Transsolar Energietechnik GmbH<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">Curiestraße 2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">70563 Stuttgart<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black"><a href="http://www.transsolar.com/">http://www.transsolar.com</a><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:green">Transsolar: KlimaEngineering- Technologien für energieeffizientes Bauen und Nutzerkomfort in Gebäuden<o:p></o:p></span></b></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:green">Stuttgart – München – New York – Paris
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">Geschäftsführer :Diplom-Ingenieur Matthias Schuler, Diplom-Ingenieur Thomas Auer, Diplom-Physiker Stefan Holst, Diplom-Betriebswirt Dieter Schnelle<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">Eingetragen beim Amtsgericht Stuttgart HRB 23347,
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black">Steuernummer: 99073/00911,USt-IdNr.: DE 152272639<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Von:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org]
<b>Im Auftrag von </b>via TRNSYS-users<br>
<b>Gesendet:</b> 04 May 2017 16:06<br>
<b>An:</b> Jeff Thornton <thornton@tess-inc.com>; TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org><br>
<b>Betreff:</b> [TRNSYS-users] type for simulating MCP materials<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt;color:black">Dear Jeff Thornton<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt;color:black">I would like to ask you if there is a type in TRNSYS wich simulate an MCP (material phase change) model<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt;color:black">thank you<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt;color:black">Kaouther Ben Nasr<br>
Docteur Ingénieur\\Génie Énergétique<br>
Maître assistant à l'ENAU <br>
Chercheur au CRTEn\\Technopôle Borj Cédria<br>
mobile: +216 53 48 44 38<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Helvetica",sans-serif;color:black">De:
</span></b><span style="font-family:"Helvetica",sans-serif;color:black">"Jeff Thornton via TRNSYS-users" <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>><br>
<b>À: </b>"Amirreza Heidary" <<a href="mailto:amirrezaheidarysbu@gmail.com">amirrezaheidarysbu@gmail.com</a>>, "TRNSYS users mailing list at OneBuilding.org" <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>><br>
<b>Envoyé: </b>Samedi 29 Avril 2017 16:52:42<br>
<b>Objet: </b>Re: [TRNSYS-users] problem with differential controller<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">Amirreza,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">Real solar collectors do the same thing under certain circumstances. From a first glance I would say your dead bands are too tight - typically we see 10/2 not 5/2. It's also
possible that your collector pump flow rate is too high. With collectors connected in series you typically have a pump flow rate the same as if you had only one collector. Collectors are designed for a given maximum flow rate for pressure drop reasons.
For example, assume we had a collector that wanted 450 kg/h of flow and we had 6 in series. We would run the pump at 450 (each collector gets the 450 that way). You wouldn't run your pump at 2700 (450 x 6) or the pressure drop would be ridiculously high.
If you have that high of a flow rate you'll get exactly what you are seeing in your project. With no flow the collector temperature is above the deadband but when the pump turns on the high flow rate causes the outlet temperature to drop below the lower
deadband. The controller can't find a solution since both are correct and will oscillate between on and off.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">Jeff<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">TESS Inc<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">Sent from my iPhone<o:p></o:p></span></p>
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On Apr 29, 2017, at 2:36 AM, Amirreza Heidary via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black"><img border="0" id="_x0000_i1026" src="https://mailtrack.io/trace/mail/0a28719c14bd30ad7c353f53cc4b911f030d1d23.png?u=1249159">Dear All<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">I'm using a 5 collectors in series with a differential controller to turn on the pump when the difference of collector outlet and inlet temperatures is more than 5 and turn it
off when it is less than 2.But the signal and collector output temperatures are fluctuating too much, also the signal is not compatible with temperature
<a href="http://variations.as" target="_blank">variations.as</a> you can see in the following diagram, the signal is 1 when the outlet temperature is at maximum ! <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">(red line is collector outlet temperature and orange line is the controller signal)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">--------------------------------------------------------------------------------------------------------------------------------------------------<br>
<img border="0" width="96" height="96" style="width:1.0in;height:1.0in" id="_x0000_i1029" src="https://docs.google.com/uc?id=0B56a_joPrCZuYUg5aFkzTlR2dTg&export=download"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.5pt;font-family:"Georgia",serif;color:black">amirrezaheidary</span></b><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#444444">master student of energy systems Engineering</span></i><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#444444">Sharif university of technology</span></i><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:9.5pt;font-family:"Trebuchet MS",sans-serif;color:#444444">Tehran-Iran</span></i><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:9.5pt;font-family:"Georgia",serif;color:black">E-mail address</span></i><span style="font-size:9.5pt;font-family:"Comic Sans MS";color:black">:</span><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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<p><span style="font-size:9.5pt;font-family:"Tahoma",sans-serif;color:#1155CC"><a href="mailto:heidari@energy.sharif.edu" target="_blank">heidari@energy.sharif.edu</a></span><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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<p><span style="font-size:9.5pt;font-family:"Tahoma",sans-serif;color:#1155CC"><a href="mailto:sm_mousavi@pwut.ac.ir" target="_blank"><span style="color:#1155CC">a</span></a><a href="mailto:mirrezaheidarysbu@gmail.com" target="_blank">mirrezaheidarysbu@gmail.com</a></span><span style="font-size:9.5pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-GB" style="font-family:Webdings;color:green">P</span></b><i><span lang="EN-GB" style="color:navy"> </span></i><b><i><span lang="EN-GB" style="color:green">Save a tree... Please don't print this E-mail unless you really
need to.</span></i></b><b><span style="font-size:7.5pt;font-family:"Helvetica",sans-serif;color:blue"> </span></b><span style="font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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</span></a></span><span class="mt-signature-text"><span style="font-family:"Helvetica",sans-serif;color:#999999">Sent with
<a href="https://mailtrack.io/install?source=signature&lang=en&referral=amirrezaheidarysbu@gmail.com&idSignature=22" target="_blank">
Mailtrack</a> </span></span><span style="font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif;color:black">_______________________________________________<br>
TRNSYS-users mailing list<br>
<a href="mailto:TRNSYS-users@lists.onebuilding.org" target="_blank">TRNSYS-users@lists.onebuilding.org</a><br>
<a href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a><o:p></o:p></span></p>
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_______________________________________________<br>
TRNSYS-users mailing list<br>
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<a href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a><o:p></o:p></span></p>
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