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

Abstract : 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.
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Submitted on : Wednesday, August 4, 2010 - 9:40:09 AM
Last modification on : Friday, April 9, 2021 - 12:02:04 PM

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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, American Chemical Society, 2010, 55 (2), pp.985-988. ⟨10.1021/je900440t⟩. ⟨hal-00508512⟩

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