Plotting of phase (vapor-liquid) transition surface near the critical point out of data from isochoric experiment. Experimental procedure

Sergey V. Vostrikov; Andrey A. Pimerzin; Maria E. Konnova; Victoria S. Sarkisova

doi:10.1016/j.fluid.2018.01.022

Plotting of phase (vapor-liquid) transition surface near the critical point out of data from isochoric experiment. Experimental procedure

Sergey V. Vostrikov^*, Andrey A. Pimerzin, Maria E. Konnova, Victoria S. Sarkisova

^*Corresponding author for this work

Samara State Technical University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

This paper suggests a mathematical model of processing experimental data that allows to plot the surface of the phase transition in near critical region, using the results of isochoric experiment. The model is based on proven approximation methods. The model was tested on 20 binary mixtures (10 mixtures of С₂-С₇ linear alkanes, five mixtures of propane and branched С₅-С₆ alkanes, two mixtures of haloalkanes, one mixture each of pentane with toluene, cyclohexane with benzene and toluene) with the difference in critical temperatures from 45 to 235 K. As the result, in the 0.5≤ρ_Dew/ρ_c < 1.5 range of reduced density the average error in predicting temperatures of phase transition is 2.2 K, 1.2 K for critical temperatures, 3 K for maximum temperature of liquid and vapor phase coexistence.

Original language	English
Pages (from-to)	118-129
Number of pages	12
Journal	Fluid Phase Equilibria
Volume	462
DOIs	https://doi.org/10.1016/j.fluid.2018.01.022
Publication status	Published - 25 Apr 2018
Externally published	Yes

Keywords

Critical density
Critical temperature
Experimental procedure
Liquid and gas phases coexistence
Mixture
Vapor-liquid equilibrium

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10.1016/j.fluid.2018.01.022

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title = "Plotting of phase (vapor-liquid) transition surface near the critical point out of data from isochoric experiment. Experimental procedure",

abstract = "This paper suggests a mathematical model of processing experimental data that allows to plot the surface of the phase transition in near critical region, using the results of isochoric experiment. The model is based on proven approximation methods. The model was tested on 20 binary mixtures (10 mixtures of С2-С7 linear alkanes, five mixtures of propane and branched С5-С6 alkanes, two mixtures of haloalkanes, one mixture each of pentane with toluene, cyclohexane with benzene and toluene) with the difference in critical temperatures from 45 to 235 K. As the result, in the 0.5≤ρDew/ρc < 1.5 range of reduced density the average error in predicting temperatures of phase transition is 2.2 K, 1.2 K for critical temperatures, 3 K for maximum temperature of liquid and vapor phase coexistence.",

keywords = "Critical density, Critical temperature, Experimental procedure, Liquid and gas phases coexistence, Mixture, Vapor-liquid equilibrium",

author = "Vostrikov, {Sergey V.} and Pimerzin, {Andrey A.} and Konnova, {Maria E.} and Sarkisova, {Victoria S.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = apr,

day = "25",

doi = "10.1016/j.fluid.2018.01.022",

language = "English",

volume = "462",

pages = "118--129",

journal = "Fluid Phase Equilibria",

issn = "0378-3812",

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TY - JOUR

T1 - Plotting of phase (vapor-liquid) transition surface near the critical point out of data from isochoric experiment. Experimental procedure

AU - Vostrikov, Sergey V.

AU - Pimerzin, Andrey A.

AU - Konnova, Maria E.

AU - Sarkisova, Victoria S.

PY - 2018/4/25

Y1 - 2018/4/25

N2 - This paper suggests a mathematical model of processing experimental data that allows to plot the surface of the phase transition in near critical region, using the results of isochoric experiment. The model is based on proven approximation methods. The model was tested on 20 binary mixtures (10 mixtures of С2-С7 linear alkanes, five mixtures of propane and branched С5-С6 alkanes, two mixtures of haloalkanes, one mixture each of pentane with toluene, cyclohexane with benzene and toluene) with the difference in critical temperatures from 45 to 235 K. As the result, in the 0.5≤ρDew/ρc < 1.5 range of reduced density the average error in predicting temperatures of phase transition is 2.2 K, 1.2 K for critical temperatures, 3 K for maximum temperature of liquid and vapor phase coexistence.

AB - This paper suggests a mathematical model of processing experimental data that allows to plot the surface of the phase transition in near critical region, using the results of isochoric experiment. The model is based on proven approximation methods. The model was tested on 20 binary mixtures (10 mixtures of С2-С7 linear alkanes, five mixtures of propane and branched С5-С6 alkanes, two mixtures of haloalkanes, one mixture each of pentane with toluene, cyclohexane with benzene and toluene) with the difference in critical temperatures from 45 to 235 K. As the result, in the 0.5≤ρDew/ρc < 1.5 range of reduced density the average error in predicting temperatures of phase transition is 2.2 K, 1.2 K for critical temperatures, 3 K for maximum temperature of liquid and vapor phase coexistence.

KW - Critical density

KW - Critical temperature

KW - Experimental procedure

KW - Liquid and gas phases coexistence

KW - Mixture

KW - Vapor-liquid equilibrium

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U2 - 10.1016/j.fluid.2018.01.022

DO - 10.1016/j.fluid.2018.01.022

M3 - Article

AN - SCOPUS:85041391352

SN - 0378-3812

VL - 462

SP - 118

EP - 129

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

ER -

Plotting of phase (vapor-liquid) transition surface near the critical point out of data from isochoric experiment. Experimental procedure

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Keywords

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