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</o:shapelayout></xml><![endif]--></head><body lang=ES-TRAD link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I’m modelling a system using a network of heat exchangers for heat recovery purposes (see attached picture). <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Heat exchanger calculations seems to be repeated many times for a given time-step and their temperatures re-calculated within the same time-step while other components on that model are not updated until the next time step (as it should be). Problem observed at the exchanger is leading to wrong temperature calculations. From our understanding types should be only be called once every time-step, furthermore heat exchangers network should be re-calculated taking the temperature from connecting models. Is there any option or any idea to bring light on this problem?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Kinds regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=ES>---------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=ES>Dr. Miguel Ángel Reyes Belmonte<o:p></o:p></span></p><p class=MsoNormal><span lang=ES>IMDEA ENERGY Institute<o:p></o:p></span></p><p class=MsoNormal><span lang=ES>Avda. Ramón de la Sagra, 3<o:p></o:p></span></p><p class=MsoNormal><span lang=ES>Parque Tecnológico de Móstoles<o:p></o:p></span></p><p class=MsoNormal><span lang=ES>E-28935 Móstoles, Madrid, Spain<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Telf.: +34 91 737 1150<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>e-mail: </span><span lang=ES><a href="mailto:miguelangel.reyes@imdea.org"><span lang=EN-US>miguelangel.reyes@imdea.org</span></a></span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>web: </span><span lang=ES><a href="http://www.energy.imdea.org"><span lang=EN-US>http://www.energy.imdea.org</span></a></span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=ES><a href="https://es.linkedin.com/pub/miguel-angel-reyes/7b/347/b77"><span lang=EN-US>https://es.linkedin.com/pub/miguel-angel-reyes/7b/347/b77</span></a></span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=ES style='color:#494A4C;background:white'>orcid.org/0000-0002-9666-2388</span><span lang=ES><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>