Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K

Daniel Lozano-Martín, Andres Rojo, M. Carmen Martin, David Vega-Maza, José Juan Segovia (Corresponding Author)

Research output: Contribution to journalArticle

Abstract

This work aims to provide accurate and wide-ranging experimental new speed of sound data w(p,T) of two binary (CH4 + He) mixtures at a nominal helium content of 5 % and 10 % at pressures p = (0.5 up to 20) MPa and temperatures T = (273.16, 300, 325, 350 and 375) K. For this purpose, the most accurate technique for determining speed of sound in gas phase has been used: the spherical acoustic resonator. Speed of sound is determined with an overall relative expanded (k = 2) uncertainty of 230 parts in 106 and compared to reference models for multicomponent natural gas-like mixtures: AGA8-DC92 and GERG-2008 equations of state. Relative deviations of experimental data from model estimations are outside the experimental uncertainty limit, although all points are mostly within the AGA uncertainty of 0.2 % and GERG uncertainty of 0.5 % and worsen as the helium content increases. Absolute average deviations are better than 0.45 % for GERG and below 0.14 % for AGA models in (0.95 CH4 + 0.05 He) mixture and below 0.83 % for GERG and within 0.22 % for AGA equations in (0.90 CH4 + 0.10 He) mixture.
Original languageEnglish
Article number105869
Number of pages14
JournalThe Journal of Chemical Thermodynamics
Volume139
Early online date19 Jul 2019
DOIs
Publication statusE-pub ahead of print - 19 Jul 2019

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Acoustic wave velocity
Helium
acoustics
helium
Acoustic resonators
deviation
natural gas
Equations of state
gas mixtures
Natural gas
equations of state
Gases
resonators
vapor phases
Uncertainty
Temperature
temperature

Keywords

  • speed of sound
  • acoustic resonance
  • methane
  • helium
  • heat capacities as perfect gas
  • virial coefficients
  • Methane
  • Virial coefficients
  • VIRIAL-COEFFICIENTS
  • PRESSURES
  • Helium
  • ARGON
  • Acoustic resonance
  • ACOUSTIC THERMOMETRY
  • MIXTURES
  • GAS-CONSTANT R
  • EQUATION-OF-STATE
  • METHANE
  • Speed of sound
  • TEMPERATURES
  • Heat capacities as perfect gas
  • HELIUM

Cite this

Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K. / Lozano-Martín, Daniel; Rojo, Andres; Martin, M. Carmen; Vega-Maza, David; Segovia, José Juan (Corresponding Author).

In: The Journal of Chemical Thermodynamics, Vol. 139, 105869, 12.2019.

Research output: Contribution to journalArticle

Lozano-Martín, Daniel ; Rojo, Andres ; Martin, M. Carmen ; Vega-Maza, David ; Segovia, José Juan. / Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K. In: The Journal of Chemical Thermodynamics. 2019 ; Vol. 139.
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title = "Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K",
abstract = "This work aims to provide accurate and wide-ranging experimental new speed of sound data w(p,T) of two binary (CH4 + He) mixtures at a nominal helium content of 5 {\%} and 10 {\%} at pressures p = (0.5 up to 20) MPa and temperatures T = (273.16, 300, 325, 350 and 375) K. For this purpose, the most accurate technique for determining speed of sound in gas phase has been used: the spherical acoustic resonator. Speed of sound is determined with an overall relative expanded (k = 2) uncertainty of 230 parts in 106 and compared to reference models for multicomponent natural gas-like mixtures: AGA8-DC92 and GERG-2008 equations of state. Relative deviations of experimental data from model estimations are outside the experimental uncertainty limit, although all points are mostly within the AGA uncertainty of 0.2 {\%} and GERG uncertainty of 0.5 {\%} and worsen as the helium content increases. Absolute average deviations are better than 0.45 {\%} for GERG and below 0.14 {\%} for AGA models in (0.95 CH4 + 0.05 He) mixture and below 0.83 {\%} for GERG and within 0.22 {\%} for AGA equations in (0.90 CH4 + 0.10 He) mixture.",
keywords = "speed of sound, acoustic resonance, methane, helium, heat capacities as perfect gas, virial coefficients, Methane, Virial coefficients, VIRIAL-COEFFICIENTS, PRESSURES, Helium, ARGON, Acoustic resonance, ACOUSTIC THERMOMETRY, MIXTURES, GAS-CONSTANT R, EQUATION-OF-STATE, METHANE, Speed of sound, TEMPERATURES, Heat capacities as perfect gas, HELIUM",
author = "Daniel Lozano-Mart{\'i}n and Andres Rojo and Martin, {M. Carmen} and David Vega-Maza and Segovia, {Jos{\'e} Juan}",
note = "Acknowledgements The authors want to thank for the support to Ministerio de Econom{\'i}a, Industria y Competitividad project ENE2017-88474-R and Junta de Castilla y Le{\'o}n project VA280P18.",
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T1 - Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K

AU - Lozano-Martín, Daniel

AU - Rojo, Andres

AU - Martin, M. Carmen

AU - Vega-Maza, David

AU - Segovia, José Juan

N1 - Acknowledgements The authors want to thank for the support to Ministerio de Economía, Industria y Competitividad project ENE2017-88474-R and Junta de Castilla y León project VA280P18.

PY - 2019/7/19

Y1 - 2019/7/19

N2 - This work aims to provide accurate and wide-ranging experimental new speed of sound data w(p,T) of two binary (CH4 + He) mixtures at a nominal helium content of 5 % and 10 % at pressures p = (0.5 up to 20) MPa and temperatures T = (273.16, 300, 325, 350 and 375) K. For this purpose, the most accurate technique for determining speed of sound in gas phase has been used: the spherical acoustic resonator. Speed of sound is determined with an overall relative expanded (k = 2) uncertainty of 230 parts in 106 and compared to reference models for multicomponent natural gas-like mixtures: AGA8-DC92 and GERG-2008 equations of state. Relative deviations of experimental data from model estimations are outside the experimental uncertainty limit, although all points are mostly within the AGA uncertainty of 0.2 % and GERG uncertainty of 0.5 % and worsen as the helium content increases. Absolute average deviations are better than 0.45 % for GERG and below 0.14 % for AGA models in (0.95 CH4 + 0.05 He) mixture and below 0.83 % for GERG and within 0.22 % for AGA equations in (0.90 CH4 + 0.10 He) mixture.

AB - This work aims to provide accurate and wide-ranging experimental new speed of sound data w(p,T) of two binary (CH4 + He) mixtures at a nominal helium content of 5 % and 10 % at pressures p = (0.5 up to 20) MPa and temperatures T = (273.16, 300, 325, 350 and 375) K. For this purpose, the most accurate technique for determining speed of sound in gas phase has been used: the spherical acoustic resonator. Speed of sound is determined with an overall relative expanded (k = 2) uncertainty of 230 parts in 106 and compared to reference models for multicomponent natural gas-like mixtures: AGA8-DC92 and GERG-2008 equations of state. Relative deviations of experimental data from model estimations are outside the experimental uncertainty limit, although all points are mostly within the AGA uncertainty of 0.2 % and GERG uncertainty of 0.5 % and worsen as the helium content increases. Absolute average deviations are better than 0.45 % for GERG and below 0.14 % for AGA models in (0.95 CH4 + 0.05 He) mixture and below 0.83 % for GERG and within 0.22 % for AGA equations in (0.90 CH4 + 0.10 He) mixture.

KW - speed of sound

KW - acoustic resonance

KW - methane

KW - helium

KW - heat capacities as perfect gas

KW - virial coefficients

KW - Methane

KW - Virial coefficients

KW - VIRIAL-COEFFICIENTS

KW - PRESSURES

KW - Helium

KW - ARGON

KW - Acoustic resonance

KW - ACOUSTIC THERMOMETRY

KW - MIXTURES

KW - GAS-CONSTANT R

KW - EQUATION-OF-STATE

KW - METHANE

KW - Speed of sound

KW - TEMPERATURES

KW - Heat capacities as perfect gas

KW - HELIUM

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DO - 10.1016/j.jct.2019.07.011

M3 - Article

VL - 139

JO - The Journal of Chemical Thermodynamics

JF - The Journal of Chemical Thermodynamics

SN - 0021-9614

M1 - 105869

ER -