<HTML><BODY>Dear Francesco<br /><br />the model you are (probably) referring to is part of the development_branch (and has been for some time) and so should be available in the official version. It is type "SPMCMP56" and covers the topics you mention. The model is loosely based on the PhD thesis of Sabine Hoffmann, University of Weimar, September 2006. Tests done with the significantly enhanced model showed quite good results for the PCM material used at that time.<br /><br />What was / is tricky is finding a good set of coefficients for the functions used for describing melting and solidification behaviour. At the time, this was done via a MathCAD sheet which may still be available.<br /><br />There are others on the list also involved. Maybe they can/will tune in.<br /><br />By the way, rumor has it, that ISE did extensive simulations recently with PCMs in curtain walls or better HVAC in curtain walls. It would be interesting, which model was used ... ;o)<br /><br
/>Best<br />Achim<br /><br /><br />--------- Original-Nachricht --------<br /> Von: "Francesco Frontini" <francesco.frontini@polimi.it><br /> An: "esp-r@lists.strath.ac.uk" <esp-r@lists.strath.ac.uk><br /> Betreff: [esp-r] PCM models<br /> Datum: 02/02/11 10:20<br /> <br /> Dear all,<br /> we are looking for a Phase Change Material PCM model for ESP-r which<br /> include the under cooling effect during the solidification process.<br /> To be a bit more detailed we have to model a PCM from DeltaCool which<br /> has two different curves for the solidification state and for the<br /> melting state. The two capacity peaks differ by 3K.<br /> We heard that there already some new PCM models available (not just<br /> the Heim model) but they are not available yet in the actual release..<br /> Any suggestion? How we can access them?<br /> <br /> Best regards<br /> <br /> Francesco and Tobias<br /> <br /> <br /> -- <br /> Dr. Francesco Frontini, MEng !
PhD in
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