The specific entropy of saline water is important for designing desalination plants and examining performance and irreversibility. It is a thermodynamic property computed based on the differentiation of the Gibbs free energy with respect to temperature at constant pressure. This chapter explains the thermodynamic approaches, multicomponent models, correlation, and data used to estimate specific entropy at various salinity and temperature values. Besides, the calculated specific entropy values from the correlations and methods are compared and assessed against the experimental data of seawater. A new correlation for NaCl-specific entropy with high accuracy is suggested for a salinity of 0–260 g/kg and ambient conditions. Some correlations and methods are recommended based on their accuracy and operating conditions. Furthermore, the codes used for the investigated methods are provided.
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|Number of pages
|Published - 2023
Bibliographical notePublisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
- Saline water
- Specific entropy
ASJC Scopus subject areas
- Aquatic Science
- Environmental Science (miscellaneous)
- Water Science and Technology
- Earth and Planetary Sciences (miscellaneous)