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<p class="MsoNormal"><span lang="EN-GB">Dear users,<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">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></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB">Variable supply temperature.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-GB" style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</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></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><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></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I am using type362 in trnsys17 project with a simple room modelled with type 56.<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">Has anyone experienced this problem? How can it be solved?<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">Regards,<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" style="color:#1F497D;mso-fareast-language:ES">Joaquim Romaní
</span><span lang="EN-GB" style="mso-fareast-language:CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D;mso-fareast-language:ES">Researcher</span><span lang="EN-GB" style="mso-fareast-language:CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D;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></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D;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></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:CA"><img width="170" height="85" id="Picture_x0020_1" src="cid:image001.jpg@01D538A3.802DAF40" alt="cid:image003.jpg@01D3A681.0D4A4700"></span><span lang="EN-GB" style="mso-fareast-language:CA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-family:"Arial",sans-serif;color:#1F497D;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></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-family:"Arial",sans-serif;color:#1F497D;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></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:CA"><a href="http://www.irec.cat/" target="_blank"><span style="color:#1F497D">www.irec.cat</span></a></span><span lang="EN-GB" style="mso-fareast-language:CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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