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<body class='hmmessage'><div dir='ltr'><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>Hi everyone,<o:p></o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>I am using
Type534 with Plug-in, inserting 1 port and 1 miscellaneous heat flow to it. My
doubt is about temperature stratification in the tank. Even if I increase the
number of nodes, the temperature difference between the node where I insert the
heat flow and the rest of the nodes is too large, i.e. the nodes without external heating barely warm up. </span></p><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>It also happens even if I remove the port
and, consequently, simulate it as a tank without any inlet or outlet: the lower
nodes barely increase their temperature (I want the miscellaneous heat flow in
node 1 or 2), no matter the time length I run the simulation... The upper nodes
do reach the desired temperature (I have a controller to the heater that is connected
to miscellaneous heat flow for that) but the lower nodes remain almost at
constant temperature. I tried to change the “inversion mixing flow rate” to
both high and low values, negative and positive values, zero… but the changes
in T of the nodes are not visible. I want to increase T of water in tank from
20ºC to 150ºC and I have a quite high water draw from the tank, thus I don’t want
that only one or two nodes reach 150ºC, but I want most or all of the tank to do so instead… no
matter how much time it takes to heat it up. </span></p><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>How to make the lower nodes to heat up? </span><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>Which other
parameter can I change so the stratification in the tank really works? Is there
any other parameter to change rather than “inversion mixing flow rate” to get
normal stratification? Should I use another type?<o:p></o:p></span><font face="Times New Roman">
</font></p><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>Thank you very
much in advance.<o:p></o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'><o:p> </o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>Alaia Sola Saura<o:p></o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>Project engineer<o:p></o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'>Thermal Energy
and Building Performance Group<o:p></o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: EN-US; mso-fareast-language: ES;'><o:p> </o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><b><span style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-fareast-language: ES;'>IREC</span></b><b><span lang="ES-TRAD" style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-ansi-language: ES-TRAD; mso-fareast-language: ES;'><o:p></o:p></span></b></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><b><span style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-fareast-language: ES;'>Institut de Recerca en Energia de
Catalunya<o:p></o:p></span></b></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style='color: rgb(31, 73, 125); font-family: "Arial","sans-serif"; font-size: 10pt; mso-fareast-language: ES;'><a href="http://www.irec.cat"><font color="#0000ff">www.irec.cat</font></a><o:p></o:p></span></p><font face="Times New Roman">
</font><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style="mso-ansi-language: EN-US;"><o:p> </o:p></span></p><p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US" style="mso-ansi-language: EN-US;"><o:p></o:p></span> </p><font face="Times New Roman">
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