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Viscosity measurements of compressed liquid dipropyl and dibutyl adipates

2015-06-05Journal article Restricted access
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dc.contributor.authorDiogo, João C. F.
dc.contributor.authorAvelino, Helena Maria Da Nóbrega Teixeira
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorFareleira, João M. N. A.
dc.date.accessioned2016-04-19T16:31:12Z
dc.date.available2016-04-19T16:31:12Z
dc.date.issued2015-06-05
dc.description.abstractThe paper reports viscosity measurements of compressed liquid dipropyl (DPA) and dibutyl (DBA) adipates obtained with two vibrating wire sensors developed in our group. The vibrating wire instruments were operated in the forced oscillation, or steady-state mode. The viscosity measurements of DPA were carried out in a range of pressures up to 18. MPa and temperatures from (303 to 333). K, and DBA up to 65. MPa and temperature from (303 to 373). K, covering a total range of viscosities from (1.3 to 8.3). mPa. s. The required density data of the liquid samples were obtained in our laboratory using an Anton Paar vibrating tube densimeter and were reported in a previous paper. The viscosity results were correlated with density, using a modified hard-spheres scheme. The root mean square deviation of the data from the correlation is less than (0.21 and 0.32)% and the maximum absolute relative deviations are within (0.43 and 0.81)%, for DPA and DBA respectively. No data for the viscosity of both adipates could be found in the literature. Independent viscosity measurements were also performed, at atmospheric pressure, using an Ubbelohde capillary in order to compare with the vibrating wire results. The expanded uncertainty of these results is estimated as ±1.5% at a 95% confidence level. The two data sets agree within the uncertainty of both methods. © 2015 Published by Elsevier B.V.pt_PT
dc.identifier.citationDiogo, João C. F.; [et al] - Viscosity measurements of compressed liquid dipropyl and dibutyl adipates. Fluid Phase Equilibria. ISSN 0378-3812. Vol. 395. 26-32, 2015pt_PT
dc.identifier.doi10.1016/j.fluid.2015.03.016pt_PT
dc.identifier.issn0378-3812
dc.identifier.urihttp://hdl.handle.net/10400.21/6044
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectDBApt_PT
dc.subjectDibutyl adipatept_PT
dc.subjectDipropyl adipatept_PT
dc.subjectDPApt_PT
dc.subjectHigh pressurept_PT
dc.subjectVibrating wirept_PT
dc.subjectViscositypt_PT
dc.titleViscosity measurements of compressed liquid dipropyl and dibutyl adipatespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage32pt_PT
oaire.citation.startPage26pt_PT
oaire.citation.titleFluid Phase Equilibriapt_PT
oaire.citation.volume395pt_PT
person.familyNameAvelino
person.givenNameHelena Maria da Nóbrega Teixeira
person.identifier.ciencia-id9615-6337-5695
person.identifier.orcid0000-0001-6516-2164
person.identifier.scopus-author-id14919229800
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9465688d-83d6-42bb-9ec3-c86eb756f458
relation.isAuthorOfPublication.latestForDiscovery9465688d-83d6-42bb-9ec3-c86eb756f458

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