Excess enthalpies of ternary mixtures of (oxygenated additives + cycloalkane) in fuels and bio-fuels: (dibutyl ether + 1-propanol + cyclohexane), or methylcyclohexane, at T = (298.15 and 313.15) K
New excess enthalpy data for ternary mixtures of dibutyl ether + cycloalkane + 1-propanol are reported. 2 ternary systems at 298.15 K and 313.15 K were measured by means of an isothermal flow calorimeter. 231 data were fitted to a rational equation and UNIQUAC model. Intermolecular and association effects involved in these systems have been discussed.