Thermodynamic Properties of Refrigerants from Cubic Equations of State

摘要

Thermodynamic properties were predicted, along the saturation curve and in the single-phase region for refrigerants R11 (CFCl_3), R21 (CHFCl_2) and R152a ( CHF_2CH_3). Five eubic equations of state were used: Soave-Redlieh-Kwong (SRK), Peng-Robinson (PR), Schmidt-Wenzel (SW), Freze et al. (CI) and GEOS3C. A wide comparison with experimental data wax made. So far GEOS3C with three estimated parameters, compares favorably to other equations in literature, resting simple enough for applicalions.