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dc.contributor.authorHernández Gómez, Roberto
dc.contributor.authorTuma, D.
dc.contributor.authorSegovia Puras, José Juan 
dc.contributor.authorChamorro Camazón, César Rubén 
dc.date.accessioned2018-03-16T17:52:17Z
dc.date.available2018-03-16T17:52:17Z
dc.date.issued2015
dc.identifier.citationJ. Chem. Thermodynamics 96 (2016) 1–11es
dc.identifier.issn0021-9614es
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/29102
dc.descriptionInnovación Educativaes
dc.description.abstractThe basis for the development and evaluation of equations of state for mixtures is experimental data for several thermodynamic properties. The quality and the availability of experimental data limit the achievable accuracy of the equation. Referring to the fundamentals of GERG-2008 wide-range equation of state, no suitable data were available for many mixtures containing secondary natural gas components. This work provides accurate experimental (p, ρ, T) data for two binary mixtures of methane with helium (0.95 (amount-of-substance fraction) CH4 + 0.05 He and 0.90 CH4 + 0.10 He). Density measurements were performed at temperatures between 250 K and 400 K and pressures up to 20 MPa by using a single-sinker densimeter with magnetic suspension coupling. Experimental data were compared with the corresponding densities calculated from the GERG-2008 and the AGA8-DC92 equations of state. Deviations from GERG-2008 were found within a 2 % band for the (0.95 CH4 + 0.05 He) mixture but exceeded the 3 % limit for the (0.95 CH4 + 0.05 He) mixture. The highest deviations were observed at 250 K and pressures between 17 and 19 MPa. Values calculated from AGA8-DC92, however, deviated from the experimental data by only 0.1 % at high pressures and exceeded the 0.2 % limit only at temperatures of 300 K and above, for the (0.90 CH4 + 0.10 He) mixture.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.subjectTermodinámicaes
dc.subject.classificationmethanees
dc.subject.classificationheliumes
dc.subject.classificationnatural gas thermodynamic characterizationes
dc.subject.classificationdensityes
dc.subject.classificationsingle-sinker densimeteres
dc.subject.classificationGERG-2008es
dc.subject.classificationequation of statees
dc.titleExperimental determination of (p, ρ, T) data for binary mixtures of methane and heliumes
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doihttp://dx.doi.org/10.1016/j.jct.2015.12.006es
dc.identifier.publicationfirstpage1es
dc.identifier.publicationissue96es
dc.identifier.publicationlastpage11es
dc.identifier.publicationtitleJ. Chem. Thermodynamicses
dc.peerreviewedSIes
dc.description.projectMEC ENE2013-47812-Res
dc.description.projectJunta de Castilla y León Regional VA391A12-1es
dc.description.projectEuropean Commission's ENG54es


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