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Title: Gas Flow Measurement Improvement By Accurate Thermodynamic Properties Correlation
Author: K. E. Starling, J. L. Savidge, S. Shankar, T. Reid
Source: 1986 International Symposium on Fluid Flow Measurement
Year Published: 1986
Abstract: Recent correlation work sponsored by the Gas Research Institute is shown to provide improved accuracies for thermodynamic properties used in gas flow measurement. The basis for these correlations and their improvement over earlier methods are discussed. Development of a new highly accurate equation of state for prediction of the supercompressibi1ity factor and other properties of natural gases has been sponsored by the Gas Research Institute to meet gas industry needs for accurate natural gas flowrate measurement procedures. Work from 1981 through 1984 targeted pipeline quality natural gases and gases with large amounts of carbon dioxide and nitrogen (1). Presently, this work is being extended to include accurate prediction of the supercompressibility factor of wet and/or sour natural gases and to provide accurate prediction capabilities for important quantities such as the sonic velocity and critical flow factors needed for sonic nozzle calculations.

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