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dc.contributor.authorYusibani, Elinen_US
dc.contributor.authorNagahama, Yosukeen_US
dc.contributor.authorKohno, Masamichien_US
dc.contributor.authorTakata, Yasuyukien_US
dc.contributor.authorWoodfield, Peteren_US
dc.contributor.authorShinzato, Kaneien_US
dc.contributor.authorFujii, Motooen_US
dc.date.accessioned2017-05-03T15:47:58Z
dc.date.available2017-05-03T15:47:58Z
dc.date.issued2011en_US
dc.date.modified2012-02-15T04:41:36Z
dc.identifier.issn15729567en_US
dc.identifier.doi10.1007/s10765-011-0999-6en_US
dc.identifier.urihttp://hdl.handle.net/10072/42660
dc.description.abstractA capillary tube viscometer was developed to measure the dynamic viscosity of gases for high pressure and high temperature. The apparatus is simple and designed for safe-handling operation. The gas was supplied to the capillary tube from a high-pressure reservoir tank through a pressure regulator unit to maintain a steady state flow. The measurements of a pressure drop across the capillary tube with high accuracy under extreme conditions are the main challenge for this method. A differential pressure sensor for high pressures up to 100MPa is not available commercially. Therefore, a pair of accurate absolute pressure transducers was used as a differential pressure sensor. Then the pressure drop was calculated by subtracting the outlet pressure from the inlet one with a resolution of 100Pa at 100MPa. The accuracy of the present measurement system is confirmed by measuring the viscosity of nitrogen as a reference gas. The apparatus provided viscosities of nitrogen from ambient temperature to 500K and hydrogen from ambient temperature to 400K and for pressures up to 100MPa with a maximum deviation of 2.2% compared with a correlation developed by the present authors and with REFPROP (NIST).en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.publisherSpringeren_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom1111en_US
dc.relation.ispartofpageto1124en_US
dc.relation.ispartofissue6en_US
dc.relation.ispartofjournalInternational Journal of Thermophysicsen_US
dc.relation.ispartofvolume32en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchMechanical Engineering not elsewhere classifieden_US
dc.subject.fieldofresearchcode091399en_US
dc.titleA Capillary Tube Viscometer Designed for Measurements of Hydrogen Gas Viscosity at High Pressure and High Temperatureen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2011
gro.hasfulltextNo Full Text


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