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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-GB>Dear users,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>I am working on a model that determines CO2 dispersion in a dwelling, using trnflow<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>In case I decrease the trnsys simulation time-step (in “control cards”) continuously to smaller values, the pollutant concentrations change very rapidly at a certain moment. Even though the airflows remain basically the same.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB>Is there a problem with the pollutant model, or the coupling between trnsys and comis?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:NL'>Best regards,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='mso-fareast-language:NL'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='mso-fareast-language:NL'>Henk Polinder<o:p></o:p></span></p></div><div class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:NL'><hr size=1 width=600 style='width:450.0pt' align=left></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:9.0pt;mso-fareast-language:NL'><img width=204 height=40 id="_x0000_i1027" src="cid:image001.gif@01CD21FF.E66B2110" alt="Beschrijving: Cauberg-Huygen Raadgevende Ingenieurs BV"></span><span style='font-size:9.0pt;mso-fareast-language:NL'><br><b>dr. H. Polinder</b> | Specialist | Cauberg-Huygen Consulting Engineers (Maastricht, KvK 14623897)<br>Boterdiep 48 | 3077 AW | Postbus 9222 | 3007 AE | Rotterdam | The Netherlands<br><b>T </b><a href="tel:+31102443658"><span style='color:black'>+31 102443658</span></a><br><a href="mailto:h.polinder@chri.nl"><span style='color:black'>h.polinder@chri.nl</span></a> | <a href="http://www.chri.nl"><span style='color:black'>www.chri.nl</span></a> | <a href="http://www.chri.nl/emaildisclaimer"><span style='color:black'>disclaimer</span></a><br><br>Denk aan het milieu en print deze e-mail alleen als het noodzakelijk is. <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://www.annex53.nl/"><span style='font-size:9.0pt;color:black;mso-fareast-language:NL;text-decoration:none'><img border=0 width=600 height=130 id="_x0000_i1026" src="cid:image002.gif@01CD21FF.E66B2110" alt="Beschrijving: Annex 53"></span></a><span style='font-size:9.0pt;mso-fareast-language:NL'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:NL'> </span><o:p></o:p></p></div></body></html>