Analysis of approximations of the gas compressibility factor derived from genetic algorithms

Hydraulic calculations are the primary tool for rational technical decisions related to design and operation of pipeline systems. The compressibility factor is introduced into gas equation state account its real properties depends on pressure, temperature, component composition. At present, search an accurate computationally efficient approximation remains urgent problem. This paper presents a methodology constructing based symbolic regression, proposed dependencies analysis provided. average relative error presented models 0.03%.