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<body style="font: 10pt/normal Segoe UI; font-size-adjust: none; font-stretch: normal;"><div class="GroupWiseMessageBody" id="GroupWiseSection_1563266793000_juan.rodriguez.santiago@iee.fraunhofer.de_476B9F030A8A000086AF7307E7374820_"><div>Buenos días Joaquim...</div><div>El type ese del radiador, es digamos un poco extraño, pues lo que hemos notado nosotros tambien es que llega a extrapolar resultados de una manera no aceptable, y de nuestras quejas o preguntas a Trnsolar no hemos tenido respuesta aceptable.</div><div>El type se basa en la curva del radiador clásica, pero si dimensionas para una temperatura por debajo de la clásica de 80 grados, y dices que en esa temperatura, por ejemplo de 60 grados, tu potencia es la nominal, puede llegar a pasar que cuando metes temperatura por encima de los 60 en el radiador, la curva exponencial aporte a la zona, más potencia que la que llevaba el agua que entra en el radiador, algo un poco... digamos no convencional.</div><div>Yo al final me he acabado cansando del type.</div><div>Atentamente </div><div><br></div><div><br></div><span id="GWSignatureSent" style="padding-right: 0px; padding-left: 0px; margin-bottom: 5px; display: block;"><span style="display: block;"><br><span style="font-size: 10pt; display: inline-block; -ms-word-wrap: normal;">
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</font><div style="margin: 0cm 0cm 0.75pt;"><b><span style='font-family: "Frutiger LT Com 45 Light",sans-serif; font-size: 8pt; mso-fareast-language: EN-GB;'>Dr.
Juan Rodriguez Santiago</span></b><span style='font-family: "Frutiger LT Com 45 Light",sans-serif; font-size: 8pt; mso-fareast-language: EN-GB;'><br>
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</font><div style="margin: 0cm 0cm 0.75pt;"><span style='font-family: "Frutiger LT Com 45 Light",sans-serif; font-size: 8pt;'>Gottschalkstr. 28 a | 34127
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</font><div style="margin: 0cm 0cm 0.75pt;"><span style='font-family: "Frutiger LT Com 45 Light",sans-serif; font-size: 8pt;'>Königstor 59 | 34119 Kassel
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mailto: <a href="mailto:juan.rodriguez.santiago@iee.fraunhofer.de"><span style="color: rgb(5, 99, 193);">juan.rodriguez.santiago@iee.fraunhofer.de</span></a> </span><span style='font-family: "Frutiger LT Com 45 Light",sans-serif; font-size: 8pt;'>| </span><span style='font-family: "Frutiger LT Com 45 Light",sans-serif; font-size: 8pt; mso-fareast-language: EN-GB;'>Telefon: +49 561 804-1887<br>
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<div class="GroupWiseMessageBody" id="GroupWiseSection_1563266793000_juan.rodriguez.santiago@iee.fraunhofer.de_476B9F030A8A000086AF7307E7374820_"><span class="GroupwiseReplyHeader">>>> Joaquim Romaní Picas via TRNSYS-users <trnsys-users@lists.onebuilding.org> 12.07.2019 11:42 >>><br></span><div>
<div class="WordSection1">
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB">Dear users,<o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB">I am finding that energy balance issues with type 362. I find that the energy balance does not sum zero in some conditions, I have tooled around finding that the following conditions cause the error><o:p></o:p></span></div>
<div class="MsoListParagraph" style="text-indent: -0.25in; mso-list: l0 level1 lfo1;"><!--[if !supportLists]--><span lang="EN-GB" style="font-family: Symbol;"><span style="mso-list: Ignore;">·<span style='font: 7pt/normal "Times New Roman"; font-size-adjust: none; font-stretch: normal;'>
</span></span></span><!--[endif]--><span lang="EN-GB">Variable supply temperature.<o:p></o:p></span></div>
<div class="MsoListParagraph" style="text-indent: -0.25in; mso-list: l0 level1 lfo1;"><!--[if !supportLists]--><span lang="EN-GB" style="font-family: Symbol;"><span style="mso-list: Ignore;">·<span style='font: 7pt/normal "Times New Roman"; font-size-adjust: none; font-stretch: normal;'>
</span></span></span><!--[endif]--><span lang="EN-GB">Step signal on mass flow control signal (flow goes from 0 to full), the energy balance fails on first time steps after “ON” signal or first time steps after “OFF”.<o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB">I feel there is a convergence problem that does not appear on the list file. Supporting this, I tried changing the “convergence tolerance”, finding less errors on the energy balance increasing it (from default 0.0001
to 0.001).<o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB">I am using type362 in trnsys17 project with a simple room modelled with type 56.<o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB">Has anyone experienced this problem? How can it be solved?<o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB">Regards,<o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB" style="color: rgb(31, 73, 125); mso-fareast-language: ES;">Joaquim Romaní
</span><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB" style="color: rgb(31, 73, 125); mso-fareast-language: ES;">Researcher</span><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB" style="color: rgb(31, 73, 125); mso-fareast-language: ES;">Thermal Energy and Building Performance Group</span><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB" style="color: rgb(31, 73, 125); mso-fareast-language: ES;">+34 933 56 26 15 ext. 205</span><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span style="color: rgb(31, 73, 125); mso-fareast-language: CA;"><img width="170" height="85" id="Picture_x0020_1" alt="cid:image003.jpg@01D3A681.0D4A4700" src="cid:MGDPBGIYFEWF.IMAGE.jpeg"></span><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><b><span lang="EN-GB" style='color: rgb(31, 73, 125); font-family: "Arial",sans-serif; mso-fareast-language: ES;'>Institut de Rercerca en Energia de Catalunya</span></b><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><b><span lang="EN-GB" style='color: rgb(31, 73, 125); font-family: "Arial",sans-serif; mso-fareast-language: ES;'>Catalonia Institute for Energy Research</span></b><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB" style='color: rgb(31, 73, 125); font-family: "Arial",sans-serif; mso-fareast-language: CA;'><a href="http://www.irec.cat/" target="_blank"><span style="color: rgb(31, 73, 125);">www.irec.cat</span></a></span><span lang="EN-GB" style="mso-fareast-language: CA;"><o:p></o:p></span></div>
<div class="MsoNormal" style="margin: 0in 0in 0pt;"><span lang="EN-GB"><o:p> </o:p></span></div>
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