<div dir="auto"><div dir="auto"><br></div><div>Hi,</div><div dir="auto"><br></div><div dir="auto">this depends on the specific type (not sure if you refer a pipe or what, and if so, which model), and often can be find in the mathematical description of the type. Regards</div><div dir="auto"><br></div><div dir="auto">Angel<br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">El jue., 3 oct. 2019 16:07, Arne Hübner via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>> escribió:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="DE" link="blue" vlink="#954F72"><div class="m_-5067703298480539242WordSection1"><p class="MsoNormal">Hello TRNSYS-Users,</p><p class="MsoNormal">does anybody know, how TRNSYS calculates the U-values? Cause when I calculate the U-values by Hand with that Formula:</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">U = 1/(Rsi+d/Lambda+Rse) </p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Rsi,horizontal = 0,13 m²*K/W</p><p class="MsoNormal">Rse,horizontal = 0,04 m²*K/W</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">I get different U-values.</p><p class="MsoNormal">Which heat Transfer coefficients does TRNSYS use?</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Kind regards,</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Arne Hübner</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Gesendet von <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_blank" rel="noreferrer">Mail</a> für Windows 10</p><p class="MsoNormal"><u></u> <u></u></p></div></div>_______________________________________________<br>
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