A Fundamental Equation for Calculation of the Thermodynamic Properties of Ethanol

摘要: A formulation for the thermodynamic properties of ethanol (C2H5OH) in liquid, vapor, and saturation states is presented. The valid single-phase from 250 to 650 K at pressures up 280 MPa. includes a fundamental equation ancillary functions estimation properties. experimental data used determine include pressure-density-temperature, ideal gas heat capacity, speed sound, vapor pressure. Saturation values computed were ensure consistency vapor-liquid phase boundary. Comparisons between using are given verify uncertainties calculated presented may be compute densities within ±0.2%, capacities ±3%, sound ±1%. pressure represented ±0.5%, except near critical point.