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<DIV dir=ltr><FONT face=Arial color=#000000 size=2>It is for a student project, so it's not a real case, but we want to make sure all input goed to the zone we are simulating. (Otherwise it is hard to distinguish between Qcomi resulting from solar input and from active input). But otherwise we can just assume very thick insulation.</FONT></DIV>
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<FONT face=Tahoma size=2><B>Van:</B> Arie Kalkman [mailto:A.Kalkman@chri.nl]<BR><B>Verzonden:</B> wo 5-11-2008 16:38<BR><B>Aan:</B> trnsys-users@cae.wisc.edu<BR><B>Onderwerp:</B> Re: [TRNSYS-users] Adiabatic floor with active layer<BR></FONT><BR></DIV>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Dear Sabine,</SPAN></FONT></P>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">It is hard for me to imagine a situation where an adiabatic boundary to an active layer makes any sense?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Since an active floor wil generate heat flows up and down, which usually are not identical (due to the position of the active layer in the floor, but also due to floor covering and different convective heat transfer coefficients), you usually need to model a dummy zone and simulate both heat flows. Could this be a solution to your problem?</SPAN></FONT></P>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Kind regards,</SPAN></FONT><FONT color=navy><SPAN style="COLOR: navy"></SPAN></FONT></P>
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<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Van:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> Sabine Jansen - BK [mailto:S.C.Jansen@tudelft.nl] <BR><B><SPAN style="FONT-WEIGHT: bold">Verzonden:</SPAN></B> woensdag 5 november 2008 16:03<BR><B><SPAN style="FONT-WEIGHT: bold">Aan:</SPAN></B> trnsys-users@cae.wisc.edu<BR><B><SPAN style="FONT-WEIGHT: bold">Onderwerp:</SPAN></B> [TRNSYS-users] Adiabatic floor with active layer</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Arial">Dear all,</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Does anyone have experience with simulating an adiabatic boundary for a wall or floor with an active layer?</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Usually I define an adiabatic wall with boundary - identical. But for a wall with gains (from sun or TABS) this results in heat transfer from the back surface of the wall as well, since the floor is warmer than the zone and the identical temperature is equal to the zone temperature.</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I hope someone knows how this can be done for active floors!</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks in advance,</SPAN></FONT></P></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Kind regards, Sabine Jansen</SPAN></FONT></P></DIV></DIV></DIV></BODY></HTML>