Analysis of the Effect of Different Internal Flow Path Geometries of a Triple Seal Check Valve for Hydrogen Refueling on Compressible Turbulent Flow Characteristics and Exergy Losses.
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| Title: | Analysis of the Effect of Different Internal Flow Path Geometries of a Triple Seal Check Valve for Hydrogen Refueling on Compressible Turbulent Flow Characteristics and Exergy Losses. |
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| Authors: | Jang, Sun Min1 (AUTHOR), Oh, Seung Hun1 (AUTHOR), Suh, Hyun Kyu2 (AUTHOR) hksuh@kongju.ac.kr |
| Source: | International Journal of Automotive Technology. Oct2025, Vol. 26 Issue 6, p1353-1368. 16p. |
| Subjects: | Compressible flow, Turbulence, Energy dissipation, Fluid dynamics, Fueling, Entropy, Check valves, Computational fluid dynamics |
| Abstract: | In this study, RANS-based numerical analyses were performed for four flow paths located at the top of the operating section with groove (R) and diameter (D) geometry modifications to analyze the compressible turbulent flow characteristics and the effect on the check valve efficiency for hydrogen refueling. The results showed that the turbulent kinetic energy and turbulent dissipation rate increased in the flow path and the section leading to the outlet section under all geometry modification conditions, and the flow was biased toward the outlet section as the size of D increased with respect to the base condition. In addition, as the size of D decreased in the presence or absence of R, the flow path velocity in the outlet section decreased due to the bottleneck, and the turbulent kinetic energy and turbulent dissipation rate decreased accordingly. The generated entropy inside the flow path tends to decrease as the diameter increases with D = 2.5 mm, and the exergy analysis shows that (R = 0.5 mm, D = 3.5 mm) = (−) 10.26% and (R = 0.5 mm, D = 3.0 mm) = (−) 7.44% compared to the base condition. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Automotive Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 187972007 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Analysis of the Effect of Different Internal Flow Path Geometries of a Triple Seal Check Valve for Hydrogen Refueling on Compressible Turbulent Flow Characteristics and Exergy Losses. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Jang%2C+Sun+Min%22">Jang, Sun Min</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oh%2C+Seung+Hun%22">Oh, Seung Hun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Suh%2C+Hyun+Kyu%22">Suh, Hyun Kyu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> hksuh@kongju.ac.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Automotive+Technology%22">International Journal of Automotive Technology</searchLink>. Oct2025, Vol. 26 Issue 6, p1353-1368. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Compressible+flow%22">Compressible flow</searchLink><br /><searchLink fieldCode="DE" term="%22Turbulence%22">Turbulence</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+dynamics%22">Fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Fueling%22">Fueling</searchLink><br /><searchLink fieldCode="DE" term="%22Entropy%22">Entropy</searchLink><br /><searchLink fieldCode="DE" term="%22Check+valves%22">Check valves</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, RANS-based numerical analyses were performed for four flow paths located at the top of the operating section with groove (R) and diameter (D) geometry modifications to analyze the compressible turbulent flow characteristics and the effect on the check valve efficiency for hydrogen refueling. The results showed that the turbulent kinetic energy and turbulent dissipation rate increased in the flow path and the section leading to the outlet section under all geometry modification conditions, and the flow was biased toward the outlet section as the size of D increased with respect to the base condition. In addition, as the size of D decreased in the presence or absence of R, the flow path velocity in the outlet section decreased due to the bottleneck, and the turbulent kinetic energy and turbulent dissipation rate decreased accordingly. The generated entropy inside the flow path tends to decrease as the diameter increases with D = 2.5 mm, and the exergy analysis shows that (R = 0.5 mm, D = 3.5 mm) = (−) 10.26% and (R = 0.5 mm, D = 3.0 mm) = (−) 7.44% compared to the base condition. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Automotive Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s12239-025-00219-7 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 1353 Subjects: – SubjectFull: Compressible flow Type: general – SubjectFull: Turbulence Type: general – SubjectFull: Energy dissipation Type: general – SubjectFull: Fluid dynamics Type: general – SubjectFull: Fueling Type: general – SubjectFull: Entropy Type: general – SubjectFull: Check valves Type: general – SubjectFull: Computational fluid dynamics Type: general Titles: – TitleFull: Analysis of the Effect of Different Internal Flow Path Geometries of a Triple Seal Check Valve for Hydrogen Refueling on Compressible Turbulent Flow Characteristics and Exergy Losses. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Jang, Sun Min – PersonEntity: Name: NameFull: Oh, Seung Hun – PersonEntity: Name: NameFull: Suh, Hyun Kyu IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 12299138 Numbering: – Type: volume Value: 26 – Type: issue Value: 6 Titles: – TitleFull: International Journal of Automotive Technology Type: main |
| ResultId | 1 |
