2024-03-28T13:39:50Zhttp://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/390012021-06-23T11:22:48Zcom_10324_1170com_10324_931com_10324_894col_10324_1367
Lozano Martín, Daniel
Rojo, Andres
Martín González, María del Carmen
Vega Maza, David
Segovia Puras, José Juan
2019-10-31T13:20:14Z
2019-10-31T13:20:14Z
2019
Journal of Chemical Thermodynamics 2019,139,105869
0021-9614
http://uvadoc.uva.es/handle/10324/39001
10.1016/j.jct.2019.07.011
105869
The Journal of Chemical Thermodynamics
139
Producción Científica
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.
Junta de Castilla y León (project VA280P18)
Ministerio de Economía, Industria y Competitividad (project ENE2017-88474-R)
application/pdf
eng
Elsevier
info:eu-repo/semantics/openAccess
Elsevier
Termodinámica
Speed of sound
Acoustic resonance
Methane
Helium
Heat capacities as perfect gas
Vrial coefficients
2210.32 Termodinámica
Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
https://www.sciencedirect.com/journal/the-journal-of-chemical-thermodynamics
SI