A New Thermodynamic Model to Approximate Properties of Subcritical Liquids

In order to obtain the thermodynamic properties of compressed liquids, it is usual consider them as incompressible systems, since liquids and solids are well represented by this model. Within model, there two hypotheses that can be derived in different submodels: strictly (SI) which supposes a constant specific volume v=v0, more general called temperature-dependent (TDI) relates temperature, v=vT. But, usually, difference ends here thermal equation state, only SI model was developed for caloric entropic equations. The aim work provide complete formulation TDI show where advantageously used rather than study concludes proposed outperforms traditional subcritical liquid. One conceivable utilization its integration into certain calculation software packages (e.g., EES), integrate elementary code substances.