Engineering Predictions in Industrial and Power Flows Using the   Retrograde Condensation Curve. Part I-Methodology
  Industrial and power systems rely on engineering predictions of the flow properties of working fluids. The paper proposes a way of the utilization of the vapor quality values along the new retrograde condensation curve in the generation of the void fraction design guidelines and reliable prediction of the saturated liquid specific volumes/densities. The new procedure eliminates the involvement of semi-empirical relationships like rectilinear diameter and other similar models. 
Mark S. Labinov
physics.flu-dyn