An Accurate Correlation to Estimate Saturated Molar Volume of Liquids

Honarmand, Mehrdad; Haghighat Nezhad, Mohammad Reza; Pourgharib, Vahid; Beigi, Mohsen

doi:10.22036/pcr.2016.14992

An Accurate Correlation to Estimate Saturated Molar Volume of Liquids

Document Type : Regular Article

Authors

Mehrdad Honarmand ¹

Mohammad Reza Haghighat Nezhad ²

Vahid Pourgharib ¹

Mohsen Beigi ¹

¹ Department of Mechanics, Tiran Branch, Islamic Azad University, Isfahan, Iran

² Chemical Engineering Department, Shahreza Branch, Islamic Azad University, Shahreza, Iran

https://doi.org/10.22036/pcr.2016.14992

Abstract

There are a number of techniques available to estimate saturated-liquid molar or specific volumes or densities of liquids. In this study, a new empirical correlation is presented to calculate volume of saturated liquids as a function of critical volume, reduced temperature and acentric factor. An optimization algorithm is utilized to obtain unknown parameters of this correlation by fitting them with the data bank. The accuracy of presented correlation is evaluated vs. mostly used methods and the result indicates the priority of new equation than other methods used in this work with average absolute relative deviation 1.7%.

Graphical Abstract