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  4. Techniques for Natural Gas Physical Properties Definition for Flow Rate and Volume Metering Systems

Techniques for Natural Gas Physical Properties Definition for Flow Rate and Volume Metering Systems

JEECS.
2016;
Volume 2, Number 2
: pp. 49 – 58
https://doi.org/10.23939/jeecs2016.02.049
Received: November 18, 2016
Revised: December 12, 2016
Accepted: December 26, 2016

F. Matiko, H. Matiko, V. Roman, I. Stasiuk. Techniques for Natural Gas Physical Properties Definition for Flow Rate and Volume Metering Systems. Energy Eng. Control Syst., 2016, Vol. 2, No. 2, pp. 49 – 58. https://doi.org/10.23939/jeecs2016.02.049

Authors:
  1. Fedir Matiko
  2. Halyna Matiko
  3. Vitalii Roman
  4. Ivan Stasiuk
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University
4
Lviv Polytechnic National University

The results of researching the techniques for natural gas properties determination for flow rate and volume metering systems are presented in the paper. The necessity of developing techniques for calculating the isentropic exponent of natural gas for pressure up to 25 MPa based on a simplified set of parameters of gas composition is shown. New techniques are proposed to define isentropic exponent and dynamic viscosity based on designed analytical dependence for the calculation the pseudo-critical density of natural gas, regression equation for isentropic exponent and improved equation of Dean and Steal for calculating gas dynamic viscosity for high pressure. Techniques adequacy verification is carried out relative to the arrays of calculated values of adiabatic index and viscosity obtained from high-precise equations of gas state and relative to the experimental data of viscosity and sound speed in natural gas. The techniques errors and the range of their application are defined using the verification results.

flow rate metering
gas properties
isentropic exponent
dynamic viscosity
calculation technique
error
  1. Matiko F. D. The impact of the uncertainties of physical properties of gaseous energy carriers for the accuracy of their metering // Measuring equipment and metrology. – 2009. - № 70. – pp. 76-81. (in Ukrainian)
  2. Natural gas. Methods for calculating physical properties. Definition of physical properties of natural gas, its components and processing products: GOST 30319.1-96. - M: Standard Publishing House, 1997. – 15 p. (in Russian)
  3. Natural gas . Methods of calculation of physical properties. Definition of compressibility coefficient: GOST 30319.2-96. – M: Standard Publishing House, 1997. – 53 p. (in Russian)
  4. Natural gas. Methods for calculating physical properties. Definition of physical properties by equation of state: GOST 30319.3-96 - М.: M: Standard Publishing House, 1996. – 27 p. (in Russian)
  5. Natural gas. Calculation of compressibility factor. Part 2. Calculation on the basis of molar composition. DSTU ISO 12213-2:2009.– K.: Derzhspozhyvstandart of Ukraine, 2009. – 32 p. (in Ukrainian)
  6. Natural gas. Calculation of compressibility factor. Part 3. Calculation on the basis of physical properties. DSTU ISO 12213-3:2009. К.: Derzhspozhyvstandart of Ukraine, 2009. – 38 p. (in Ukrainian)
  7. Natural gas – Calculation of thermodynamic properties. Part 1: Gas phase properties for transmission and distribution applications. ISO 20765-1:2005.
  8. Natural gas. Technique for calculating compressibility coefficient for pressure range of 12 ... 25 MPa: DSSDD 4-2002. - [Valid from. 01.07.2002]. - Kyiv, Derzhstandard of Ukraine, 2002. – 5 p. (in Ukrainian)
  9. Robert C. Reid, John M. Prausnitz, Thomas K. Sherwood. The properties of gases and liquids: Reference book/ Translation from English by B. I. Sokolov. - 3rd ed., Rev. and add. – L .: Chemistry, 1982. – 592 p. (in Russian)
  10. Golubiev I. F. Gas mixture viscosity. / I Golubiev, N. Hnezdilov – M.: Standard Publishing House, 1971. – 319 p. (in Russian)
  11. Calculation of density, compressibility factor, isentropic exponent and dynamic viscosity for moderately compressed gas mixtures: GSSSD MR 118-05. – M.: GNMTS "SSD", 2005. – 32 p. – (Technique GSSSD). (in Russian)
  12. Calculation of density, compressibility factor, isentropic exponent and dynamic viscosity for wet oil gas: GSSSD MR 113-03. – M.: VNITS SMV RF, 2003. – 48 p. – (Technique GSSSD). (in Russian)
  13. Thermodynamic properties of methane / Sychev V. V., Wasserman A. A., Kozlov A. D. and others. – M.: Standards Publishing House, 1979. (in Russian)
  14. Z. Kabza, B. Dobrovolsky. Analysis of influence of accuracy of defining of natural gases isentropic exponent on the error of calculation of flow rate // Thermophysical properties of substances and materials: Issue 24. Ed. Sychev V.V. – M.: Standard Publishing House, 1988. – Pp. 141-146. (in Russian)
  15. Younglove B.A., Frederick N.V., and McCarty R.D. Speed of Sound Data and Related Models for Mixtures of Natural Gas Constituents: NIST Monograph 178. – Chicago: United States Department of Commerce, 1993. – 90 p.
  16. Liquid and gaseous methane, thermodynamic properties, dynamic viscosity and thermal conductivity for temperatures of 91–700 K and pressures of 0,1 ... 100 MPa. GSSSD – 195-01 / A. D. Kozlov, Yu. V. Mamonov et al. – M., 2001. – 43 p. (in Russian)
  17. Zagoruchenko V. A. Viscosity of natural gases and their main components // Thermophysical properties of substances and materials: Issue 24 – M.: Standard Publishing House, 1988. – Pp. 124-132. (in Russian)
  18. P. Schley et al. Viscosity Measurements and Predictions for Natural Gas. – International Journal of Thermophysics, Vol.25, No.6, 2004, pp.1623-1652.