Compressibility Factor Z for sub-critical pressures for Lee

This post presents a set of simple, compact equations to calculate the Compressibility factor Z based on Lee-Kesler’s original publication stating:  Z-LK  = Z(0)  + Omega * Z(1). The symbol Z(0) stands for the compressibility factor contribution of a “Simple Fluid with Zc = 0.2901” and omega is the “Acentric Factor” while Z(1) stands for…

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Compressibility factor - Wikipedia

a) Compressibility factor Z obtained from the Lee-Kesler EoS, and

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Acentric Factor - an overview

Compressibility Factor Charts

Compressibility factor - Wikipedia

Plot of experimental measurements of the z-factor

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Lee – Kesler Simple Fluid (Zc 0.2901) Compressibility Z Factor for

Chapter 3 - Physical Properties of Fluids: Gas Compressibility

Chapter 3 - Physical Properties of Fluids: Gas Compressibility