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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>Dear TRNSYS users</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
size=2><FONT face=¹ÙÅÁ> <?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>I am currently simulating a hydronic floor heating system using hot water
and boiler by the active layer tool in PREBID(TRNBuild).</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>The followings are my questions for understanding the active
layer.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>(about the specification window of active layer)</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>1. Definition</FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 38pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 38.0pt"><SPAN
lang=EN-US><FONT face=¹ÙÅÁ size=2>1)</FONT><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><SPAN lang=EN-US><FONT face=¹ÙÅÁ size=2>inlet temperature : is this
the initial temp. of water after heating or the initial temp. before
heating?</FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 38pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 38.0pt"><SPAN
lang=EN-US><FONT face=¹ÙÅÁ size=2>2)</FONT><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><SPAN lang=EN-US><FONT face=¹ÙÅÁ size=2>gain : is this means the
basic heat gain for floor heating by the boiler or an additional heat gain
except the boiler?</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face=¹ÙÅÁ><FONT size=2> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>2. about </FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>min. inlet mass flowrate</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 38pt; TEXT-INDENT: -18pt; mso-list: l2 level1 lfo2; tab-stops: list 38.0pt"><SPAN
lang=EN-US><FONT face=¹ÙÅÁ size=2>1)</FONT><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><FONT size=2><SPAN lang=EN-US><FONT
face=¹ÙÅÁ>What</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>s the meaning and purpose of determining
</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>min. desired inlet mass flowrate</FONT></SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ> ?<SPAN style="mso-spacerun: yes"> </SPAN>And why
the unit of it needs square meter(m2) ?<SPAN style="mso-spacerun: yes">
</SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 38pt; TEXT-INDENT: -18pt; mso-list: l2 level1 lfo2; tab-stops: list 38.0pt"><SPAN
lang=EN-US><FONT face=¹ÙÅÁ size=2>2)</FONT><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><FONT size=2><SPAN lang=EN-US><FONT face=¹ÙÅÁ>How the
</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>min. allowed inlet mass flowrate</FONT></SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ> will be decided?</FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face=¹ÙÅÁ><FONT size=2> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>3. about </FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>autosegmentation</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 38pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo3; tab-stops: list 38.0pt"><SPAN
lang=EN-US><FONT face=¹ÙÅÁ size=2>1)</FONT><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><FONT size=2><SPAN lang=EN-US><FONT
face=¹ÙÅÁ>What</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>s the exact relationship between </FONT></SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>min. desired inlet mass flowrate</FONT></SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ> and the number of segmentation
?</FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 38pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo3; tab-stops: list 38.0pt"><SPAN
lang=EN-US><FONT face=¹ÙÅÁ size=2>2)</FONT><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><FONT size=2><SPAN lang=EN-US><FONT face=¹ÙÅÁ>If the value of
</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>min. desired inlet mass flowrate</FONT></SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ> is larger than </FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>min. allowed inlet mass flowrate</FONT></SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>, the simulation don</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US><FONT face=¹ÙÅÁ>t work with the following error message.<SPAN
style="mso-spacerun: yes"> </SPAN>Do I have to use autosegmentation always
when I use the active layer?</FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 14pt; mso-line-height-rule: exactly"><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: ¹ÙÅÁ">¡®</SPAN><SPAN
lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face=¹ÙÅÁ>
Specific fluid mass flow of active layer in surface 1 below minimum value of
<U>32.76 kg/m2h</U> Please, increase the minimum mass flow rate or ?se the
autosegmentation feature of TRNBuild for subdividing the
surface.</FONT></SPAN><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: ¹ÙÅÁ">¡¯</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
size=2><FONT face=¹ÙÅÁ> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>Any advice from you will be very helpful to me.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT face=¹ÙÅÁ
size=2>Thank you.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
size=2><FONT face=¹ÙÅÁ> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
size=2><FONT
face=¹ÙÅÁ> <o:p></o:p></FONT></FONT></SPAN></P></DIV></BODY></HTML>