Measurements and Correlations of Density, Isothermal Compressibility Factor, and Thermal Expansion Coefficient of Anhydrous Ethanol Fuel as a Function of Temperature and Pressure

This work aims to present results of the measurements of the density of the anhydrous ethanol fuel in the liquid phase, and the following thermal properties: thermal expansion coefficient and isothermal compressibility factor, in the temperature range of 277.15 K to 313.15 K and for pressures up to 15.0 MPa are presented. The density measurements were performed using a pycnometer that was calibrated, which presents a volume uncertainty of 0.020 cm 3 . Correlations were obtained for density, thermal expansion coefficient, and the isothermal compressibility factor. A system of measurement was developed capable of realizing density measurements using a pycnometer and a pressure cell with low uncertainties in different pressures and temperatures.