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<div class=Section1>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Hello,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I am using TRNFLOW to
calculate the air flow between different zones (in the case of one volume, I
defined a fictive “large opening” between the lower and the upper
part of the room).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>As I want to calculate the
relative humidity, I get the following message:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Small internal <span
class=SpellE>timesteps</span> (<0.1% of simulation <span class=SpellE>timestep</span>)
used for humidity calculations due to large coupling air flows between zones!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>How could I reduce the calculated
air flow or is it another way to solve this problem?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Thank you for your help,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Olivier.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly;
mso-pagination:none'><font size=1 color=black face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:black;layout-grid-mode:line;
mso-no-proof:yes'>____________________________</span></font><font size=1
color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black;mso-no-proof:yes'><o:p></o:p></span></font></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly'><b
style='mso-bidi-font-weight:normal'><font size=1 color=maroon face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:maroon;font-weight:bold;
mso-bidi-font-weight:normal;mso-no-proof:yes'>arsenal research</span></font></b><b
style='mso-bidi-font-weight:normal'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial;font-weight:bold;mso-bidi-font-weight:
normal;mso-no-proof:yes'><o:p></o:p></span></font></b></p>
<h1 style='margin:0cm;margin-bottom:.0001pt;line-height:15.0pt;mso-line-height-rule:
exactly'><b style='mso-ansi-font-weight:normal;mso-bidi-font-weight:normal'><font
size=1 color=maroon face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:maroon;font-weight:normal;mso-no-proof:yes'>Geschäftsfeld Nachhaltige
Energiesysteme / <br>
Business Unit Sustainable Energy Systems</span></font></b><span
style='mso-no-proof:yes'><o:p></o:p></span></h1>
<h1 style='margin:0cm;margin-bottom:.0001pt;line-height:15.0pt;mso-line-height-rule:
exactly'><b style='mso-ansi-font-weight:normal;mso-bidi-font-weight:normal'><font
size=1 face=Arial><span style='font-size:9.0pt;font-family:Arial;font-weight:
normal;mso-no-proof:yes'>DI Olivier Pol</span></font></b><font size=1
face=Arial><span style='font-size:9.0pt;font-family:Arial;mso-no-proof:yes'><o:p></o:p></span></font></h1>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly'><font
size=1 face=Arial><span lang=IT style='font-size:9.0pt;font-family:Arial;
mso-ansi-language:IT;mso-no-proof:yes'>Austria, 1210 Vienna, Giefinggasse 2<o:p></o:p></span></font></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly'><font
size=1 face=Arial><span lang=IT style='font-size:9.0pt;font-family:Arial;
mso-ansi-language:IT;mso-no-proof:yes'>ph: +43 (0) 50550-6592, f: +43 (0)
50550-6613</span></font><span lang=IT style='mso-ansi-language:IT;mso-no-proof:
yes'><o:p></o:p></span></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly'><font
size=1 face=Arial><span lang=IT style='font-size:9.0pt;font-family:Arial;
mso-ansi-language:IT;mso-no-proof:yes'>mobile: +43 (0)664/ 62 07 890<o:p></o:p></span></font></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly'><font
size=1 color=blue face=Arial><span lang=EN-GB style='font-size:9.0pt;
font-family:Arial;color:blue;mso-ansi-language:EN-GB;mso-no-proof:yes'><a
href="mailto:olivier.pol@arsenal.ac.at"><span lang=IT style='mso-ansi-language:
IT'>olivier.pol@arsenal.ac.at</span></a></span></font><font size=1 color=blue
face=Arial><span lang=IT style='font-size:9.0pt;font-family:Arial;color:blue;
mso-ansi-language:IT;mso-no-proof:yes'><o:p></o:p></span></font></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly'><font
size=1 color=blue face=Arial><span lang=DE-AT style='font-size:9.0pt;
font-family:Arial;color:blue;mso-ansi-language:DE-AT;mso-no-proof:yes'><a
href="http://www.arsenal.ac.at/"><span lang=IT style='mso-ansi-language:IT'>www.arsenal.ac.at</span></a></span></font><font
size=1 face=Arial><span style='font-size:9.0pt;font-family:Arial;mso-no-proof:
yes'><o:p></o:p></span></font></p>
<p class=MsoNormal style='line-height:15.0pt;mso-line-height-rule:exactly;
mso-pagination:none'><font size=1 color=black face=Arial><span lang=IT
style='font-size:9.0pt;font-family:Arial;color:black;mso-ansi-language:IT;
layout-grid-mode:line;mso-no-proof:yes'>_________________________</span></font><span
style='mso-no-proof:yes'><o:p></o:p></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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