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A System And Method To Determine Thermophysical Properties Of A Multi-Component Gas At Arbitrary Temperature And Pressure

Patent ·
OSTI ID:879573
A method to determine thermodynamic properties of a natural gas hydrocarbon, when the speed of sound in the gas is known at an arbitrary temperature and pressure. Thus, the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for mass flow calculations, to determine the speed of sound at standard pressure and temperature, and to determine various thermophysical characteristics of the gas.
Research Organization:
Southwest Research Institute (San Antonio, TX)
DOE Contract Number:
FC21-96MC33033
Assignee:
Southwest Research Institute (San Antonio, TX)
Patent Number(s):
US 6704660
Application Number:
09/237492
OSTI ID:
879573
Country of Publication:
United States
Language:
English