Isothermal Vapor-Liquid Equilibrium Data of 1,1,1,2-Tetrafluoroethane (R134a) + Dimethylformamide (DMF) Working Fluids for an Absorption Heat Transformer

Raouf Zehioua (1, 2) , Christophe Coquelet (3) , Abdeslam-Hassen Meniai (2) , Dominique Richon (3)

1 CEP - Centre Énergétique et Procédés
2 LIPE - Laboratoire de l'Ingénierie des Procédés de l'Environnement
3 CEP/Fontainebleau

Vapor-liquid equilibrium data of 1,1,1,2-tetrafluoroethane (R134a) + dimethylformamide (DMF) were measured in the temperature range from (303.30 to 353.24) K by the static analytic method. The results are of interest to test the possibility of using R134a as a refrigerant in combination with an organic absorbent, that is, DMF, in an absorption heat transformer. The experimental data are correlated using the Peng-Robinson equation of state in combination with the Mathias-Copeman alpha function, MHV1 mixing rules, and the non-random two liquid (NRTL) activity coefficient model. We have compared our experimental results to predictions obtained using the predictive Soave-Redlich-Kwong (PSRK) group contribution equation of state.

Mots clés: equation-of-state; absorption; mixtures; system; pairs

Domaines: Energétique; Génie des procédés

Raouf Zehioua, Christophe Coquelet, Abdeslam-Hassen Meniai, Dominique Richon. Isothermal Vapor-Liquid Equilibrium Data of 1,1,1,2-Tetrafluoroethane (R134a) + Dimethylformamide (DMF) Working Fluids for an Absorption Heat Transformer. Journal of Chemical and Engineering Data, 2010, 55 (2), pp.985-988. ⟨10.1021/je900440t⟩. ⟨hal-00508512⟩