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    • Dpto. Ingeniería Energética y Fluidomecánica
    • DEP46 - Artículos de revista
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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/39001

    Título
    Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K
    Autor
    Lozano Martín, DanielAutoridad UVA Orcid
    Rojo, Andres
    Martín González, María del CarmenAutoridad UVA Orcid
    Vega Maza, DavidAutoridad UVA Orcid
    Segovia Puras, José JuanAutoridad UVA Orcid
    Año del Documento
    2019
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Chemical Thermodynamics 2019,139,105869
    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.
    Materias (normalizadas)
    Termodinámica
    Materias Unesco
    2210.32 Termodinámica
    Palabras Clave
    Speed of sound
    Acoustic resonance
    Methane
    Helium
    Heat capacities as perfect gas
    Vrial coefficients
    ISSN
    0021-9614
    Revisión por pares
    SI
    DOI
    10.1016/j.jct.2019.07.011
    Patrocinador
    Junta de Castilla y León (project VA280P18)
    Ministerio de Economía, Industria y Competitividad (project ENE2017-88474-R)
    Version del Editor
    https://www.sciencedirect.com/journal/the-journal-of-chemical-thermodynamics
    Propietario de los Derechos
    Elsevier
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/39001
    Tipo de versión
    info:eu-repo/semantics/acceptedVersion
    Derechos
    openAccess
    Collections
    • DEP46 - Artículos de revista [100]
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    Universidad de Valladolid

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