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Correlations between the Important Physical Properties of Natural Gas  

Ha, Youngcheol (Fluid Measurement Research Lab, R&D Division, KOGAS)
Lee, Seongmin (Fluid Measurement Research Lab, R&D Division, KOGAS)
Her, Jaeyoung (Fluid Measurement Research Lab, R&D Division, KOGAS)
Lee, Kangjin (Fluid Measurement Research Lab, R&D Division, KOGAS)
Lee, Seungjun (Fluid Measurement Research Lab, R&D Division, KOGAS)
Publication Information
Korean Chemical Engineering Research / v.47, no.5, 2009 , pp. 599-607 More about this Journal
Abstract
This study was conducted to derive the five correlations which could predict specific gravity(or heating value), compression factor, density, etc., if we know heating value or specific gravity only. To make a sufficient number of raw data for regression, SGERG EOS was modified into equation of heating value. Based on these raw data, five correlations were obtained and the uncertainties of the correlations were evaluated. The results showed that the uncertainties were near 0.1% in most conditions of natural gas and so the correlations could be used in natural gas industry and academic fields.
Keywords
Natural Gas; Correlation; Regression; Heating Value; Compression Factor;
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  • Reference
1 ISO 12213, Natural Gas −- Calculation of Compression Factor, International Organization for Standardization, Geneva(1997)
2 AGA 8, Compression Factors of Natural Gas and Other Related Hydrocarbon Gases, American Gas Association(1994)
3 ISO 13443, Natural Gas −- Standard Reference Conditions, International Organization for Standardization, Geneva(1996)
4 Ha, Y. C. and Lee, C. G., 'Calculations of Sonic Velocity, Specific Heat, Enthalpy for Natural Gas,' Korean Chem. Eng. Res. 39(6), 678-684(2001)
5 ISO 6976, Natural Gas −- Calculation of Calorific Values, Density, Relative Density and Wobbe Index from Composition, International Organization for Standardization, Geneva(1995)
6 ISO GUM, Guide to the Expression of Uncertainty in Measurement, International Organization for Standardization, Geneva(1995)
7 ISO 5168, Measurement of Fluid Flow −- Evaluation of Uncertainties, International Organization for Standardization, Geneva(1998)