Vapour–liquid equilibrium data for the difluoromethane +1,1,1,2,3,3,3-heptafluoropropane system at temperatures from 283.20 to 343.38 K and pressures up to 4.5 MPa
Données sur l'équilibre liquide–vapeur de mélanges des frigorigènes difluorométhane et 1,1,1,2,3,3,3-heptafluoropropane pour des températures allant de 283,20 à 343,38 K et des pressions allant jusqu'à 4,5 MPa
Résumé
Isothermal vapour–liquid equilibrium data for the difluoromethane (R32)-1,1,1,2,3,3,3-Heptafluoropropane (R227ea) binary system are presented at 283.20, 303.21, 323.21 and 343.38 K and pressures up to 4.5 MPa. The experimental method, used for this work, is of the static-analytic type. It takes advantage of mobile pneumatic capillary samplers (Rolsi™, Armines' patent) developed in our laboratory. The four P, x, y isothermal data have been represented with the Soave–Redlich–Kwong (SRK) equation of state and the MHV1 rules involving the NRTL model.
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