Isdn

Haslam, R. J.

doi:10.1049/pbte031e_ch5

Cited by 2 publications

(1 citation statement)

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“…It is significantly more sophisticated than the older, cubic EoS, but is not as thoroughly developed, lacking the necessary parameters to model isobutane + H2, limiting its use to isobutane + CO2. It may be able to predict caloric properties more accurately [49], which are important for modelling refrigeration processes. The final model examined is GERG-2008 [50], a highly sophisticated Helmholtz energy explicit multiparameter equation of state developed for natural gases and similar mixtures, optimised for 21 compounds, including those in this work.…”

Section: Other Equations Of Statementioning

confidence: 99%

Phase Behaviour of Isobutane + CO2 and Isobutane + H2 at Temperatures between 190 and 400 K and at Pressures up to 20 MPa

Latcham,

Trusler

2023

Preprint

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Mixtures containing isobutane, carbon dioxide, and/or hydrogen are found in various industrial processes, green refrigerant systems, and the growing hydrogen industry. Understanding the thermophysical properties of these mixtures is essential for these processes, and depends on reliable experimental data. Making use of an automated static-analytical apparatus, measurements were made of the phase behaviour of binary mixtures of isobutane with CO2 and with H2, extending the range of available data for both mixtures. Measurements of the system isobutane + CO2 were carried out along three isotherms at temperatures of (240, 280, and 310) K with pressures from the lower limit of the sampling system (~ 0.5 MPa) to the mixture critical pressure. The results exhibit good agreement with literature data. Measurements on isobutane + H2 were carried out along nine isotherms at temperatures of (190, 240, 280, 311, 339, 363, 375, 390, and 400) K with pressures up to 20 MPa, covering a much broader range of conditions than the one prior investigation. The results have been used to optimise temperature dependant binary parameters in the Peng-Robinson equation of state with two different mixing rules. This approach was found to perform well in comparisons to alternative models.

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Section: Other Equations Of Statementioning

confidence: 99%