[esp-r] Re: PCM models

[Achim.geissler]

Dear Francesco

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.

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.

There are others on the list also involved. Maybe they can/will tune in.

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)

Best
Achim


--------- Original-Nachricht --------
 Von: "Francesco Frontini" 
 An: "esp-r at lists.strath.ac.uk" 
 Betreff: [esp-r]  PCM models
 Datum: 02/02/11 10:20
 
 Dear all,
 we are looking for a Phase Change Material PCM model for ESP-r which
 include the under cooling effect during the solidification process.
 To be a bit more detailed we have to model a PCM from DeltaCool which
 has two different curves for the solidification state and for the
 melting state. The two capacity peaks differ by 3K.
 We heard that there already some new PCM models available (not just
 the Heim model) but they are not available yet in the actual release..
 Any suggestion? How we can access them?
 
 Best regards
 
 Francesco and Tobias
 
 
 -- 
 Dr. Francesco Frontini, MEng PhD in Buildings Engineering
 
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