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Viscosity measurements of compressed liquid refrigerant blend R-507A, using a vibrating-wire technique

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dc.contributor.authorAvelino, Helena Maria da Nóbrega Teixeira
dc.contributor.authorFareleira, João M. N. A.
dc.contributor.authorOliveira, Carla Padrel de
dc.date.accessioned2012-01-19T10:11:34Z
dc.date.available2012-01-19T10:11:34Z
dc.date.issued2008
dc.description.abstractThe refrigerant blend R-507A (50 wt % HFC-143a, 50 wt % HFC-125) is an azeotropic mixture of hydrofluorocarbon refrigerants, 1,1,1-trifluoroethane (HFC-143a) and pentafluoroethane (HFC-125). The paper reports viscosity measurements, performed with a vibrating-wire viscometer, of the refrigerant blend R-507A,at five temperatures in the range (253 to 293) K. The measurements were carried out at pressures from slightly above saturation up to 10 MPa, except for the isotherms at 253.26 K where the maximum pressure was 7.52 MPa and at 263.23 K where the maximum pressure was 7.09 MPa. The overall uncertainty of these measurements is estimated to be ( 1.0 %. The data obtained were correlated by means of a modified hard-sphere based correlation technique. The root-mean-square deviation, rmsd, of the experimental results from the correlation equations is 0.23 %, and their bias is not significant. This correlation method has also been used to interpolate and extrapolate the present results to enable comparisons with measurements performed by other authors of the viscosity of liquid R-507A at different temperatures and pressures.por
dc.identifier.citationAvelino, Helena M. N. T.; Fareleira, João M. N. A.; Oliveira, Carla Padrel de - Viscosity measurements of compressed liquid refrigerant blend R-507A, using a vibrating-wire technique. "Journal of Chemical & Engineering Data" [Em linha]. ISSN 0021-9568 (Print) 1520-5134 (Online). Vol. 53, nº 1 (2008), p. 53-56por
dc.identifier.issn0021-9568 (Print)
dc.identifier.issn1520-5134 (Online)
dc.identifier.urihttp://hdl.handle.net/10400.2/2040
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relation.publisherversionDOI: 10.1021/je700345bpor
dc.subjectViscosity measurementspor
dc.subjectVibrating-wire viscometer
dc.subjectRefrigerant blend R-507A
dc.titleViscosity measurements of compressed liquid refrigerant blend R-507A, using a vibrating-wire techniquepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage56por
oaire.citation.startPage53por
oaire.citation.titleJournal of Chemical & Engineering Datapor
person.familyNameAvelino
person.familyNameFareleira
person.familyNameOliveira
person.givenNameHelena Maria da Nóbrega Teixeira
person.givenNameJoão
person.givenNameCarla Padrel de
person.identifier.ciencia-id9615-6337-5695
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.ciencia-id7015-A6A4-C28D
person.identifier.orcid0000-0001-6516-2164
person.identifier.orcid0000-0002-8442-9386
person.identifier.orcid0000-0002-6419-7100
person.identifier.ridH-8325-2012
person.identifier.ridF-9882-2014
person.identifier.scopus-author-id14919229800
person.identifier.scopus-author-id6603840268
person.identifier.scopus-author-id25226689000
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication8efac795-4b7e-4b96-86ca-d8c612283ab7
relation.isAuthorOfPublication22e737b9-e5ab-460d-9200-5d088c622c08
relation.isAuthorOfPublicationb9cd96f1-268e-440b-8240-2db65c6f528e
relation.isAuthorOfPublication.latestForDiscoveryb9cd96f1-268e-440b-8240-2db65c6f528e

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