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<p class="MsoNormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Prima di risponderti vorrei capire una cosa. Perché (quale utilità ha) vuoi che il gruppo frigorifero parta con un controllo
sulla t di mandata dei fan coils? La t di mandata dei fan coils è (a parte qualche piccola dispersione termica sulla tubazione di mandata) uguale alla temperatura all interno dell accumulo.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Non capisco perché tu voglia questo controllo ridondante sulla t di mandata dei fan coils…<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-top:4.0pt"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Friday, January 8, 2021 12:15 PM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <trnsys-users@lists.onebuilding.org><br>
<b>Cc:</b> Filippo Angeli <filippoangeli24@yahoo.it><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Si sì solo d estate.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Perché altrimenti io avevo pensato di ridurre la temperatura che controllo relativa all’ accumulo che mi fa partire il gruppo frigorifero, lasciando il controllo sulla temperatura di mandata
invariato.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">In questo modo abbassando quella temperatura, ho molta più probabilità che il gruppo frigorifero parta per evitare che l accumulo abbia temperature troppo calde, così dovrebbe calare di conseguenza
anche il numero di volte in cui é la temperatura di mandata ad attivare il gruppo frigorifero no?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Il venerdì 8 gennaio 2021, 12:06:59 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>>
ha scritto: <o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Beh dipende dal tuo utilizzo. Se poi l'accumulo è ben isolato termicamente, hai poche dispersioni termiche. Questo sistema funzionerebbe
solo in estate, no? </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal" style="margin-top:4.0pt"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
</span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.spf.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">
| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Friday, January 8, 2021 12:05 PM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> <o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Ma in questo modo non faccio andare il gruppo frigorifero maggiormente? Perché voglio sempre un accumulo freddo carico in questa situazione.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il venerdì 8 gennaio 2021, 11:50:14 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Ah ok, adesso ho capito. Guarda è molto semplice: fai partire il gruppo frigorifero solo comandato dall
accumulo. In questo modo avrai sempre il fluido nell accumulo a temperatura fredda ed i fan coils partono solo in caso di bisogno. Secondo me non vi è alcun bisogno di comandare il gruppo frigorifero comandato dalla t di mandata dei fan coils. Capisci?</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a>
|</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
</span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.spf.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">
| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">
TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Friday, January 8, 2021 11:46 AM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il passaggio del fluido attraverso l accumulo freddo é obbligatorio, quindi il fluido che va ai fan coils viene
da questo accumulo.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Io attualmente ho due controlli che mi possono far partire il gruppo frigorifero.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">1) se la temperatura nell accumulo freddo é troppo alta, allora parte il gruppo frigorifero.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">2) se la temperatura di mandata dei fan-coils è troppo alta, parte il gruppo frigorifero.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Ho già un comando OR che mi gestisce queste due opzioni, solo che ho notato che é sempre il controllo sulla temperatura
di mandata a farlo partire. Quindi io mi stavo chiedendo come fare per far si che quando i fan-coils sono spenti, il gruppo frigorifero parta e si accumuli acqua fredda nel serbatoio in modo da evitare accensioni inutili del gruppo frigorifero quando partono
i fan-coils.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il venerdì 8 gennaio 2021, 11:28:31 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">In questi casi penso sia sempre meglio dare la precedenza ai fan coils, ossia attivare il gruppo frigorifero laddove tu abbia bisogno di freddo.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Nel caso in cui tu vuoi effettuare questa modifica, potresti strutturare un controllo sui fan coils ed uno sull accumulo e con una istruzione OR attivare il gruppo frigorifero
se si attiva uno di quei due controlli. A questo punto, io lavorerei piuttosto sull attivazione delle valvole a tre vie deviatrici, ossia:</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">1)</span><span lang="IT" style="font-size:7.0pt;font-family:"Helvetica",sans-serif;color:#1F497D">
</span><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Se viene richiesto freddo ai fan coils, devia il flusso di acqua fredda verso i fan coils e non verso l accumulo</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">2)</span><span lang="IT" style="font-size:7.0pt;font-family:"Helvetica",sans-serif;color:#1F497D">
</span><span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Se viene richiesto freddo all accumulo, devia il flusso di acqua fredda verso l accumulo</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Un'altra soluzione sarebbe quella di eliminare completamente il collegamento gruppo frigorifero – fan coils ed alimentare i fan coils solo dall accumulo e collegando il gruppo
frigorifero solo all accumulo, ma questo dipende dal tuo impianto e da cosa vuoi simulare o ti hanno chiesto di simulare…</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
</span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.spf.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">
| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Friday, January 8, 2021 11:18 AM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Si sì.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Volevo chiederti un altro consiglio. Io ho un gruppo frigorifero che mi produce acqua fredda per i fan-coils quando i fan-coils partono, e tra il gruppo frigorifero ed i terminali ho
un accumulo freddo.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Ora io voglio attivare il gruppo frigorifero anche quando i fan-coils non vanno, immagazzinando l energia fredda nell accumulo.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Io ho due controlli che gestiscono l attivazione del gruppo frigorifero, uno che dipende dalla temperatura di mandata dei fan-coils ed uno dalla temperatura del fluido immagazzinato
nell accumulo. Ho notato che é solo il segnale di controllo della temperatura di mandata a farmi partire il gruppo frigorifero.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Per farlo partire anche quando i fan-coils non vanno, io diminuirei la temperatura del fluido dell accumulo, in modo da far sì che quando il fluido che ho nell accumulo é troppo caldo,
allora il gruppo frigorifero va. é corretto?</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Grazie </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il venerdì 8 gennaio 2021, 10:36:54 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Ha funzionato?</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
</span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.spf.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">
| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Friday, January 8, 2021 10:35 AM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Grazie mille.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il mercoledì 6 gennaio 2021, 12:59:08 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Bella domanda. Guarda devi provare e controllare l output. E' da un po che non utilizzo questi operatori ed ho dimenticato. Comunque, come già detto, c'e' una documentazione
sull utilizzo delle equazioni dove dovrebbe essere spiegato.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
</span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.spf.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">
| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Wednesday, January 6, 2021 12:53 PM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Perfetto. Si lo farò.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Intendevo dire per l'operatore and se l'equazione va scritta cosi: Free_cooling= and(GE(T_amb,18),LE(T_amb,24))</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il mercoledì 6 gennaio 2021, 12:48:15 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">L operatore AND va definito solo nella equazione del controllo Free_Cooling. L'operatore OR non ti serve in questo caso.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Ti consiglio comunque prima di provare l'equazione e vedere con un plot se come output hai quello che ti aspetti di avere. Poi lo implementi nell edificio</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
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| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Wednesday, January 6, 2021 12:43 PM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Perfetto.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">L'operatore AND va inserito in mezzo e non all'inizio? perchè l'OR lo metto all inizio</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il mercoledì 6 gennaio 2021, 12:40:16 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Ah ok, adesso ho capito meglio. Dovresti allora scrivere una coppia di equazioni:</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Free_Cooling = GT(Tamb,18) AND LT(Tamb,24) -> con questa equazione attiverai il Free Cooling solo quanto la T esterna sarä compresa tra 18 e 24°C</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Portata = C_season * (Free_Cooling* Profilo_aria + (1- Free_Cooling)*0.6) -> con questa equazione attivi la portata di Free cooling solo in estate e solo quando il
controllo sarä uguale a 1. Se Free_Cooling = 0 avrai allora la portata di 0.6.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Tutto chiaro?</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
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| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Wednesday, January 6, 2021 12:33 PM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">In pratica io voglio avere il free cooling notturno d'estate solo sotto determinate condizioni. A quel punto una volta determinate devo far si che la portata di ricambio d'aria dipenda
da questo free cooling.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Quando invece il free cooling non lo posso usare perchè non rispetto queste condizioni di temperatura, voglio una portata di ventilazione di 0.6 m3/hrm2.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Non so se mi sono spiegato bene.
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Grazie e cordiali saluti.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Angeli Filippo</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il mercoledì 6 gennaio 2021, 12:26:59 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Scusami ma forse non ho capito bene cosa vuoi modellare. Sostanzialmente tu vorresti ventilare il tuo edificio in estate quando fuori fa fresco (a esempio di sera e di notte
in estate). A questo punto io penso che puoi semplicemente scrivere una equazione sul controllo che attivi il Free Cooling solo se la temperatura esterna è compresa tra 18 e 24 °C. Dovrebbe essere possibile farlo con una equazione che contenga il "AND" o qualcosa
del genere.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">In sostanza: Free_Cooling = GT(Tamb,18) AND LT(Tamb,24).</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">E' quello che vuoi fare?</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="IT" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">T +41 58 257 4827</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">SPF Institut für Solartechnik</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
</span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.spf.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.spf.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">
| </span><u><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#8C195F"><a href="http://www.ost.ch" target="_blank"><span style="font-size:10.0pt;color:#8C195F">www.ost.ch</span></a></span></u><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Wednesday, January 6, 2021 12:04 PM<br>
<b>To:</b> Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> Re: [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Ciao,</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">si sono Italiano.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Io ho pensato di fare in questo modo con un equazione.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Creo un comando di accensione del free cooling: Free_cooling = GE*(T_amb,18) in questo modo stabilisco un segnale di accensione del free cooling per temperature esterne maggiori di
18°C.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Poi regolo la portata d'aria in questo modo: portata= (profilo_aria*Free_cooling*GE(T_amb,24) + 0.6*LE(T_amb,24))* C_season. In questo modo faccio si che quando il free cooling può
essere utile, se la temperatura esterna è maggiore di 24 gradi allora parte mentre se è minore no. Con 24 indico la temperatura interna all'edifico di confort abbassata di 2°C .</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Può andare?</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Perchè mi serve un vincolo sulla minima temperatura esterna al di sotto della quale non voglio free colling ed un vincolo che mi dica quando serve davvero attivarlo ( quindi temperatura
esterna maggiore di 24 gradi).</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Grazie e cordiali saluti.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Angeli FIlippo</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Il mercoledì 6 gennaio 2021, 09:07:46 CET, Toni Calabrese via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>>
ha scritto: </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Hallo Filippo,</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">I suppose that you are Italian. In case let me know and I will write you in Italian.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">If you want to model the night cooling, you can follow two approaches:</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">1.</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Arial",sans-serif;color:#1F497D">
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">You could use Type 2 (controller) in order to get 1 in case the external temperature is lower than a certain value</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">2.</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Arial",sans-serif;color:#1F497D">
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">You could use an equation. Please have a look in the EQUATION Statement and you can learn how to set an equation with the function "GT" or "LT".</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">You can follow the first or the second approach depending on your experience with TRNSYS. Maybe it would be easier for you to start with the second approach.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">I hope I helped you</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Toni Calabrese</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">, MSc.</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Wissenschaftlicher Projektmitarbeiter</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@spf.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@spf.ch</span></a> |</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#8C195F">
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:toni.calabrese@ost.ch" target="_blank"><span style="color:#0065A3">toni.calabrese@ost.ch</span></a></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#26282A"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org" target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Filippo Angeli via TRNSYS-users<br>
<b>Sent:</b> Tuesday, January 5, 2021 8:25 PM<br>
<b>To:</b> <a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a><br>
<b>Cc:</b> Filippo Angeli <<a href="mailto:filippoangeli24@yahoo.it" target="_blank">filippoangeli24@yahoo.it</a>><br>
<b>Subject:</b> [TRNSYS-users] night free cooling</span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746ydp73943f64yiv6106570067ydp995cf49cyiv7700565708ydp877753f0jlqj4b"><span lang="EN" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Good evening, I want
to include night free cooling in my building during the summer season.</span></span><span class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746ydp73943f64yiv6106570067ydp995cf49cyiv7700565708ydp877753f0viiyi"><span lang="EN" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">
</span></span><span class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746ydp73943f64yiv6106570067ydp995cf49cyiv7700565708ydp877753f0jlqj4b"><span lang="EN" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">How can
I build a function that regulates the night ventilation air flow rate, so that free cooling occurs when I have an external temperature greater than 15 ° C? Furthermore, I want night free cooling to occur only in certain external temperature conditions (for
example greater than 24 ° C).</span></span><span class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746ydp73943f64yiv6106570067ydp995cf49cyiv7700565708ydp877753f0viiyi"><span lang="EN" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">
</span></span><span class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746ydp73943f64yiv6106570067ydp995cf49cyiv7700565708ydp877753f0jlqj4b"><span lang="EN" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">Thanks
a lot.</span></span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A"> </span><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p></o:p></span></p>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746ydp73943f64yiv6106570067msonormal">
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">_______________________________________________<br>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656ydp8e61645cyiv3577453746msonormal">
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">_______________________________________________<br>
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<p class="ydpac0b8284yiv9805796920ydp84472afbyiv8602152656msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">_______________________________________________<br>
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<p class="ydpac0b8284yiv9805796920msonormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#26282A">_______________________________________________<br>
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