DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jae Jun | ko |
dc.contributor.author | Baek, Jeong Yeol | ko |
dc.contributor.author | Lee, Jeong Ik | ko |
dc.date.accessioned | 2022-11-07T02:00:39Z | - |
dc.date.available | 2022-11-07T02:00:39Z | - |
dc.date.created | 2022-11-07 | - |
dc.date.created | 2022-11-07 | - |
dc.date.issued | 2022-11 | - |
dc.identifier.citation | JOURNAL OF SUPERCRITICAL FLUIDS, v.190 | - |
dc.identifier.issn | 0896-8446 | - |
dc.identifier.uri | http://hdl.handle.net/10203/299318 | - |
dc.description.abstract | For prediction of critical flow occurring under supercritical carbon dioxide (S-CO2) condition, one-dimensional (1-D) analytical critical flow models are evaluated in this study. Specifically, homogeneous equilibrium model (HEM) and a newly proposed non-equilibrium model are evaluated. The new non-equilibrium model adopts Moody's slip ratio for mechanical non-equilibrium and a newly proposed correlation of supercooling for thermal non-equilibrium. For evaluation of the models over various thermodynamic states, S-CO2 critical flow experi-ment through an orifice is conducted to supplement and expand a range of previously published S-CO2 critical flow experiment data. From the evaluation results with the expanded S-CO2 critical flow experiment database, the new non-equilibrium model shows better prediction performance than HEM in terms of the prediction of critical mass flux and critical pressure. For practical applications, discharge coefficients for each 1-D analytical critical flow model are suggested for the orifice geometry. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Study on supercritical CO2 critical flow through orifices under power cycle operating conditions | - |
dc.type | Article | - |
dc.identifier.wosid | 000870354600002 | - |
dc.identifier.scopusid | 2-s2.0-85138346867 | - |
dc.type.rims | ART | - |
dc.citation.volume | 190 | - |
dc.citation.publicationname | JOURNAL OF SUPERCRITICAL FLUIDS | - |
dc.identifier.doi | 10.1016/j.supflu.2022.105756 | - |
dc.contributor.localauthor | Lee, Jeong Ik | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | SupercriticalCO2 | - |
dc.subject.keywordAuthor | S-CO2 | - |
dc.subject.keywordAuthor | Critical flow | - |
dc.subject.keywordAuthor | 1-D critical flow model | - |
dc.subject.keywordAuthor | Experiment | - |
dc.subject.keywordAuthor | Orifice | - |
dc.subject.keywordPlus | COMPUTATIONAL MODEL | - |
dc.subject.keywordPlus | CARBON-DIOXIDE | - |
dc.subject.keywordPlus | 2-PHASE FLOW | - |
dc.subject.keywordPlus | R744 EJECTOR | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.