Corresponding-state principle model for the correlation of temperature dependent difference of coexisted densities of refrigerants at equilibrium

Yang, Shangguo; Tian, Jianxiang; Jiang, Hua

doi:10.1016/j.fluid.2022.113501

Fluid Phase Equilibria

2022

DOI: 10.1016/j.fluid.2022.113501

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Corresponding-state principle model for the correlation of temperature dependent difference of coexisted densities of refrigerants at equilibrium

Shangguo Yang

Jianxiang Tian

Hua Jiang

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Cited by 3 publications

References 34 publications

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Characteristic Curves of Polar Fluids: (II) The Two-Center Lennard–Jones Plus Quadrupole Fluid

Renneis,

Stephan

2024

Int J Thermophys

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A systematic study of Brown’s characteristic curves of the two center Lennard–Jones plus point quadrupole (2CLJQ) fluid was carried out using molecular simulation and molecular-based equation of state (EOS) modeling. The model parameters (elongation and quadrupole moment) were varied systematically covering the range relevant for real fluid models. In total, 36 model fluids were studied. The independent predictions from the EOS and the computer experiments are found to be in very good agreement. Based on these results, the influence of the quadrupole moment on the fluid behavior at extreme conditions is elucidated. The quadrupole interactions are found to have a surprisingly minor influence on the extreme state fluid behavior. In particular, for the Amagat curve, the quadrupole moment is found to have an almost negligible influence in a wide temperature range. The results also provide new insights into the applicability of the corresponding states principle, which is compared to other molecular property features. Interestingly, for a wide range of quadrupole moments, the fluid behavior at extreme conditions is conform with the corresponding states principle—opposite to the influence of other molecular features. This is attributed to the symmetry of the quadrupole interactions. Moreover, an empirical correlation for the characteristic curves was developed as a global function of the model parameters and tested on real substance models. Additionally, the applicability of Batschinski’s linearity law for the Zeno curve was assessed using the results for the 2CLJQ fluid.

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Characteristic Curves of Polar Fluids: (II) The Two-Center Lennard–Jones Plus Quadrupole Fluid

Renneis,

Stephan

2024

Int J Thermophys

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New corresponding-state-principle based correlation for the thermal conductivity of saturated liquid refrigerants and n-alkanes

Chen

Tian²,

Yang³

et al. 2023

Fluid Phase Equilibria

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Liquid to solid phase transition detection by using a vibrating tube densimeter along with densities up to 137 MPa of beef tallow fatty acid alkyl esters

García-Morales,

Verónico-Sánchez,

Domenzaín-González

et al. 2024

The Journal of Chemical Thermodynamics

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Corresponding-state principle model for the correlation of temperature dependent difference of coexisted densities of refrigerants at equilibrium

Cited by 3 publications

References 34 publications

Characteristic Curves of Polar Fluids: (II) The Two-Center Lennard–Jones Plus Quadrupole Fluid

Characteristic Curves of Polar Fluids: (II) The Two-Center Lennard–Jones Plus Quadrupole Fluid

New corresponding-state-principle based correlation for the thermal conductivity of saturated liquid refrigerants and n-alkanes

Liquid to solid phase transition detection by using a vibrating tube densimeter along with densities up to 137 MPa of beef tallow fatty acid alkyl esters

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