A modified perturbed chain-statistical associating fluid theory equation of state for water which includes an association dependent hard sphere diameter

The concept of an association dependent hard sphere diameter is introduced as a means to obtain an accurate perturbed chain-statistical associating fluid theory (PC-SAFT) equation of state model for water. The new approach is demonstrated to be a step change in accuracy for the representation of pure water properties as compared with standard PC-SAFT applications. Extension of the approach to mixtures is discussed.

Automated summary

A new concept of association dependent hard sphere diameter has been introduced to enhance the accuracy of the PC-SAFT equation of state model for water. This approach represents a significant advancement in accurately predicting pure water properties compared to traditional PC-SAFT applications, and there is potential for its extension to mixtures.