Device for determining thermophysical properties of a multi-component gas at arbitrary temperature and pressure
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United States of America Patent
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Feb 1, 2005
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N/A
app pub date -
Feb 3, 2004
filing date -
Apr 17, 2000
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Abstract
A computer product for determining 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.
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