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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I simulate the dwelling in TRNSYS. Last time a try to validate my model and I compare simulation results with measurements.<o:p></o:p></p><p class=MsoNormal><b><u>Heat consumption</u></b> has been measured in dwelling every week (the same day of week and the same hour).<o:p></o:p></p><p class=MsoNormal>Trnsys simulation generate results for dwelling’s model with ideal heating assumptions (set temperature 20/21) –NTYPE2 (sensible <b><u>energy demand</u></b>).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Total <b><u>heat consumption (measurements)</u></b> of dwelling and <b><u>energy demand (simulation)</u></b> of simulated model are quite similar (36 weeks from September to June), but if we look on weekly results there are bigger difference with interesting regularity:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>if <b><u>heat consumption</u></b> decreases from one week to the next, then <b><u>energy demand</u></b> increase, and vice versa (I enclose graph).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Could you tell me what can cause this lack of coincidence?<o:p></o:p></p><p class=MsoNormal>I will be grateful for any hints!<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Karol<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>------------------------------------------------<o:p></o:p></p><p class=MsoNormal>Karol Bandurski MSc.<o:p></o:p></p><p class=MsoNormal><span lang=PL style='background:white'><a href="http://www.ee.put.poznan.pl/" target="_top"><span lang=EN-US style='color:windowtext;text-decoration:none'>Institute of Environmental Engineering</span></a></span><span style='background:white'><o:p></o:p></span></p><p class=MsoNormal><span style='background:white'>Poznan University of Technology<o:p></o:p></span></p><p class=MsoNormal><span lang=PL style='background:white'><a href="http://www.ee.put.poznan.pl/"><span lang=EN-US style='color:blue'>www.ee.put.poznan.pl</span></a></span><span style='background:white'><o:p></o:p></span></p><p class=MsoNormal><span lang=PL style='background:white'><a href="http://www.put.poznan.pl/"><span style='color:blue'>www.put.poznan.pl</span></a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>