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dc.contributor.authorJavidmand, Puya
dc.contributor.authorHoffmann, Klaus A.
dc.identifier.citationJavidmand, Puya.; Hoffmann, Klaus A. 2015. Numerical-based non-dimensional analysis of critical flow of R-12, R-22, and R-134a through horizontal capillary tubes. International Journal of Refrigeration, vol. 58, October 2015:pp 58–68en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractDevelopment of correlations predicting critical mass flow rate and critical pressure distribution through capillary tubes is presented. In order to accomplish such a work, the critical mass flow rate and pressure distribution for nearly 500 operational conditions for R-12, R-22, and R-134a are evaluated. Operational conditions include inlet pressure varying from 800 to 1500 kPa, inlet subcold temperature between 0 and 10 degrees C, length varying from 1 to 2 m, and inner diameter between 0.5 and 1.5 mm. By performing non-dimensional analysis on numerical data, general correlations are presented to predict the critical mass flow rate through capillary tubes. In addition, by utilizing numerical data for downstream pressure, non-dimensional analysis is performed to present correlations to predict critical down-stream pressure and pressure distribution through capillary tubes.en_US
dc.description.sponsorshipThe authors would like to express their appreciation for the support of the Department of Aerospace Engineering at Wichita State University.en_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofseriesInternational Journal of Refrigeration;v.58
dc.subjectDrift flux modelen_US
dc.subjectCapillary tubeen_US
dc.subjectCritical two-phase flowen_US
dc.subjectChocked two-phase flowen_US
dc.titleNumerical-based non-dimensional analysis of critical flow of R-12, R-22, and R-134a through horizontal capillary tubesen_US
dc.rights.holderCopyright © 2015 Elsevier B.V. or its licensors or contributors.en_US

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