Speed of sound measurements in gaseous binary mixtures of difluoroethane (HFC152a) + difluoromethane (HCFC22) with a spherical resonator

M. G. He; Z. G. Liu

doi:10.1016/S0378-3812(01)00764-6

Speed of sound measurements in gaseous binary mixtures of difluoroethane (HFC152a) + difluoromethane (HCFC22) with a spherical resonator

M. G. He
, Z. G. Liu

School of Energy and Power Engineering

Xi'an Jiaotong University

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

5 Scopus citations

Abstract

Eighty-four speed of sound values in gaseous mixtures of the refrigerants difluoroethane (CH₃CHF₂, HFC152a) + difluoromethane (CHClF₂, HCFC22) have been measured for temperatures from 293 to 323K, pressure from 200 to 405kPa, and mass fractions of HCFC22 of 13.8 and 25.5% with a spherical acoustic resonator. The experimental uncertainties in the temperature, pressure and speed of sound in gas are estimated to be less than ±14mK, ±2.0kPa and 0.0037%, respectively. The compositions of the binary mixtures HFC152a+HCFC22 have been accurately determined and 14 acoustic virial coefficients have been obtained from the present speed of sound measurements. The purities of HFC152a and HCFC22 are better than 99.95 mass%.

Original language	English
Pages (from-to)	185-193
Number of pages	9
Journal	Fluid Phase Equilibria
Volume	198
Issue number	2
DOIs	https://doi.org/10.1016/S0378-3812(01)00764-6
State	Published - 30 May 2002

Keywords

Data
Difluoroethane
Difluoromethane
Ideal state function
Mixture
Refrigerant
Second acoustic virial coefficient
Speed of sound
Spherical acoustic resonator

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10.1016/S0378-3812(01)00764-6

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@article{9c0c2d4156d2471fa7bb1af43f6795ff,

title = "Speed of sound measurements in gaseous binary mixtures of difluoroethane (HFC152a) + difluoromethane (HCFC22) with a spherical resonator",

abstract = "Eighty-four speed of sound values in gaseous mixtures of the refrigerants difluoroethane (CH3CHF2, HFC152a) + difluoromethane (CHClF2, HCFC22) have been measured for temperatures from 293 to 323K, pressure from 200 to 405kPa, and mass fractions of HCFC22 of 13.8 and 25.5\% with a spherical acoustic resonator. The experimental uncertainties in the temperature, pressure and speed of sound in gas are estimated to be less than ±14mK, ±2.0kPa and 0.0037\%, respectively. The compositions of the binary mixtures HFC152a+HCFC22 have been accurately determined and 14 acoustic virial coefficients have been obtained from the present speed of sound measurements. The purities of HFC152a and HCFC22 are better than 99.95 mass\%.",

keywords = "Data, Difluoroethane, Difluoromethane, Ideal state function, Mixture, Refrigerant, Second acoustic virial coefficient, Speed of sound, Spherical acoustic resonator",

author = "He, \{M. G.\} and Liu, \{Z. G.\}",

year = "2002",

month = may,

day = "30",

doi = "10.1016/S0378-3812(01)00764-6",

language = "英语",

volume = "198",

pages = "185--193",

journal = "Fluid Phase Equilibria",

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publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Speed of sound measurements in gaseous binary mixtures of difluoroethane (HFC152a) + difluoromethane (HCFC22) with a spherical resonator

AU - He, M. G.

AU - Liu, Z. G.

PY - 2002/5/30

Y1 - 2002/5/30

N2 - Eighty-four speed of sound values in gaseous mixtures of the refrigerants difluoroethane (CH3CHF2, HFC152a) + difluoromethane (CHClF2, HCFC22) have been measured for temperatures from 293 to 323K, pressure from 200 to 405kPa, and mass fractions of HCFC22 of 13.8 and 25.5% with a spherical acoustic resonator. The experimental uncertainties in the temperature, pressure and speed of sound in gas are estimated to be less than ±14mK, ±2.0kPa and 0.0037%, respectively. The compositions of the binary mixtures HFC152a+HCFC22 have been accurately determined and 14 acoustic virial coefficients have been obtained from the present speed of sound measurements. The purities of HFC152a and HCFC22 are better than 99.95 mass%.

AB - Eighty-four speed of sound values in gaseous mixtures of the refrigerants difluoroethane (CH3CHF2, HFC152a) + difluoromethane (CHClF2, HCFC22) have been measured for temperatures from 293 to 323K, pressure from 200 to 405kPa, and mass fractions of HCFC22 of 13.8 and 25.5% with a spherical acoustic resonator. The experimental uncertainties in the temperature, pressure and speed of sound in gas are estimated to be less than ±14mK, ±2.0kPa and 0.0037%, respectively. The compositions of the binary mixtures HFC152a+HCFC22 have been accurately determined and 14 acoustic virial coefficients have been obtained from the present speed of sound measurements. The purities of HFC152a and HCFC22 are better than 99.95 mass%.

KW - Data

KW - Difluoroethane

KW - Difluoromethane

KW - Ideal state function

KW - Mixture

KW - Refrigerant

KW - Second acoustic virial coefficient

KW - Speed of sound

KW - Spherical acoustic resonator

UR - https://www.scopus.com/pages/publications/0037198586

U2 - 10.1016/S0378-3812(01)00764-6

DO - 10.1016/S0378-3812(01)00764-6

M3 - 文章

AN - SCOPUS:0037198586

SN - 0378-3812

VL - 198

SP - 185

EP - 193

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

IS - 2

ER -

Speed of sound measurements in gaseous binary mixtures of difluoroethane (HFC152a) + difluoromethane (HCFC22) with a spherical resonator

Abstract

Keywords

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