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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Comic Sans MS"">Hi </span>
<span lang="EN-GB" style="font-family:"Comic Sans MS"">Bharat,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Comic Sans MS""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Comic Sans MS"">Thank you very much for this helpful answer</span><span lang="EN-GB" style="font-family:Wingdings">J</span><span lang="EN-GB" style="font-family:"Comic Sans MS""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Comic Sans MS""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Comic Sans MS"">Kind regards
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="color:black;mso-fareast-language:DE">Dr. Hassan Mahach</span></b><span style="color:black;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">wissenschaftlicher Mitarbeiter<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">Arbeitsfeld Technische Innovationen<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">+49 681 844 972 23<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">mahach@izes.de<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">www.izes.de<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">IZES gGmbH | Altenkesseler Straße 17, Geb. A1 | 66115 Saarbrücken<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Büro Berlin | Albrechtstraße 22 | 10117 Berlin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Telefon: +49 681 844 972 0 | Fax: +49 681 761 799 9<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Rechtsform: gGmbH | Registergericht Saarbrücken HRB 8499<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Steuernummer: 040 140 241 53 | USt.-IdNr.: DE 138 113 796<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Aufsichtsratsvorsitz: Ministerpräsidentin Anke Rehlinger<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Geschäftsführung: Prof. Frank Baur | Dr. Lesya Matiyuk<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><img width="394" height="74" id="Bild_x0020_1" src="cid:image002.jpg@01D88CA4.C6D67BE0"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="mso-fareast-language:DE">Von:</span></b><span style="mso-fareast-language:DE"> TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org]
<b>Im Auftrag von </b>Bharat Chhugani via TRNSYS-users<br>
<b>Gesendet:</b> Donnerstag, 30. </span><span lang="EN-US" style="mso-fareast-language:DE">Juni 2022 16:32<br>
<b>An:</b> 'TRNSYS users mailing list at OneBuilding.org' <trnsys-users@lists.onebuilding.org><br>
<b>Cc:</b> Bharat Chhugani <chhugani@isfh.de><br>
<b>Betreff:</b> Re: [TRNSYS-users] Heat Storage: Type 340<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Hi Hassan, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Usually, type 340 is used as a water storage tank, so whenever the storage temperature goes below 0 °C, it's Ice, and you get a warning from type 340. You can also read the type source code; I am attaching the screenshot
showing the error. This is also correct when we have only water in the tank. <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">However, in your simulations, you use this tank with antifreeze on the heat pump source side. Therefore it's expected that temperatures are going below 0 °C.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">To solve this problem, you have two solutions:
<o:p></o:p></span></p>
<ol style="margin-top:0cm" start="1" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-GB">Changing the source code of Type 340 (removing this warning message below 0 °C) and recompiling the type with a different name (maybe Type 339), only use this new complied type 339 as
a source side tank. <o:p></o:p></span></li></ol>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<ol style="margin-top:0cm" start="2" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-GB">Or you can increase the limit of the before error value in the Control card (Before ERROR value: "This value is used in the LIMITS statement to set a limit on the number of warnings before
the simulation is terminated and an ERROR message is printed"), with this change, your simulations will not stop. However, I don't recommend this because if you have a warning message from any other types, the simulation will still run, and you might generate
unrealistic results. But you can check in the lst file after simulations, if any other type is not giving you warnings, then this is a straightforward solution.
<o:p></o:p></span></li></ol>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE"><img width="439" height="278" id="Picture_x0020_1" src="cid:image003.png@01D88CA4.C6D67BE0" alt="cid:image001.png@01D88C9E.FB3F4A20"></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Best regards <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Bharat<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-GB"> TRNSYS-users <>
<b>On Behalf Of </b>Mahach, Hassan via TRNSYS-users<br>
<b>Sent:</b> Dienstag, 28. Juni 2022 16:31<br>
<b>To:</b> </span><a href="mailto:trnsys-users@lists.onebuilding.org"><span lang="EN-US" style="mso-fareast-language:EN-GB">trnsys-users@lists.onebuilding.org</span></a><span lang="EN-US" style="mso-fareast-language:EN-GB"><br>
<b>Cc:</b> Mahach, Hassan <</span><a href="mailto:mahach@izes.de"><span lang="EN-US" style="mso-fareast-language:EN-GB">mahach@izes.de</span></a><span lang="EN-US" style="mso-fareast-language:EN-GB">>; Rauber, Karsten <</span><a href="mailto:Rauber@izes.de"><span lang="EN-US" style="mso-fareast-language:EN-GB">Rauber@izes.de</span></a><span lang="EN-US" style="mso-fareast-language:EN-GB">><br>
<b>Subject:</b> [TRNSYS-users] Heat Storage: Type 340<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Hi everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">I’m Simulating a Heat pump (TYPE 401) connected to a heat exchanger which is immersed in a heat storage (please see picture enclosed). After some time, the simulation stop because
of the following error :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><i><span lang="EN-US" style="font-family:"Arial",sans-serif">“water in the store is ice at I: 56 J:2 T:-0.2…”<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">And this could be because of the outlet temperature of the evaporator (the input to the HX immersed in the Heat storage) which may be lower than 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">I’m simulation the heat storage with Type 340, and I change the thermal properties of the fluid in the storage so I can assume that I have water mixed with antifreeze but also the
same error.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">My question is : is Type 340 just for water or we can we use any kind of fluid?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Have anyone an answer for this question or an idea to solve this problem?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Thank for your cooperation<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Hassan<o:p></o:p></span></p>
<p class="MsoNormal"><i><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:black;mso-fareast-language:DE">Dr. Hassan Mahach</span></b><span lang="EN-US" style="color:black;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">wissenschaftlicher Mitarbeiter<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">Arbeitsfeld Technische Innovationen<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE">+49 681 844 972 23<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:mahach@izes.de"><span style="mso-fareast-language:DE">mahach@izes.de</span></a><span style="color:black;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://www.izes.de"><span style="mso-fareast-language:DE">www.izes.de</span></a><span style="color:black;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">IZES gGmbH | Altenkesseler Straße 17, Geb. A1 | 66115 Saarbrücken<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Büro Berlin | Albrechtstraße 22 | 10117 Berlin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Telefon: +49 681 844 972 0 | Fax: +49 681 761 799 9<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Rechtsform: gGmbH | Registergericht Saarbrücken HRB 8499<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Steuernummer: 040 140 241 53 | USt.-IdNr.: DE 138 113 796<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Aufsichtsratsvorsitz: Ministerpräsidentin Anke Rehlinger<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE">Geschäftsführung: Prof. Frank Baur | Dr. Lesya Matiyuk<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><img border="0" width="394" height="74" id="Grafik_x0020_1" src="cid:image007.jpg@01D88CA2.ADE0C890" alt="cid:image007.jpg@01D88CA2.ADE0C890"></span><span style="font-size:9.0pt;color:black;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:DE"><br>
</span><span style="font-size:10.0pt;font-family:"Times New Roman",serif;mso-fareast-language:DE">¥2022 ISFH [1641222005]</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:DE"><o:p></o:p></span></p>
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