| Zugriffsnummer | 52881 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Investigation of the discharge coefficient in the laminar boundary layer regime of critical flow Venturi nozzles calibrated with different gases including hydrogen |
| Autor(in); Institution |
Bobovnik, Gregor; University of Ljubljana, Faculty of Mechanical Engineering, Laboratory of Measurements in Process Engineering, Ljubljana, SLOVENIA
Sambol, Peter; University of Ljubljana, Faculty of Mechanical Engineering, Laboratory of Measurements in Process Engineering, Ljubljana, SLOVENIA
Maury, Rémy; CESAME-EXADEBIT s.a. Poitiers, FRANCE
Kutin, Joze; University of Ljubljana, Faculty of Mechanical Engineering, Laboratory of Measurements in Process Engineering, Ljubljana, SLOVENIA
|
| Quelle/Jahr | Measurement: 217 (2023) |
| Artikelnummer | 113134 |
| ISSN | 1873-412X (online) |
| DOI | |
| URL | |
| Verlag | Amsterdam: Elsevier |
| Freie Schlagworte | critical flow venturi nozzle ; discharge coefficient ; experimental analysis ; hydrogen flow |
| Zusammenfassung | This study represents the first step towards the introduction of critical flow Venturi nozzles into the traceability scheme for gaseous hydrogen and addresses the characterisation of the hydrogen discharge coefficient in the laminar boundary layer regime and the identification of a potential alternative gas for nozzle calibration. The experimental study presented was performed for two nozzles with a throat diameter of 0.175 mm and 0.436 mm. The tests were performed with six different gases, including hydrogen, covering a Reynolds number range from 1.5·103 to 6·104. The experimental results show that the discharge coefficient depends not only on the Reynolds number but also on the isentropic exponent of the gas. Based on the experimental data, theoretical models taking into account the isentropic exponent and the Prandtl number of the gas were evaluated. The study indicates possibilities to use inert gases instead of hydrogen in calibration processes. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Durchfluss |
| Innovationscluster | Energie |
| Geschäftsfelder | Metrologie für die Wirtschaft ; Grundlagen der Metrologie |
| Forschungsprojekt | 20IND11: MetHyInfra: Metrology infrastructure for high-pressure gas and liquified hydrogen flows |
| Förderinformationen (1) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2020 Industry Titel der Förderung: 20IND11: MetHyInfra: Metrology infrastructure for high-pressure gas and liquified hydrogen flows Förderungsnummer: 20IND11 |
Zitierung
Bobovnik, G., Mickan, B., Sambol, P., Maury, R., & Kutin, J. (2023). Investigation of the discharge coefficient in the laminar boundary layer regime of critical flow Venturi nozzles calibrated with different gases including hydrogen. Measurement, 217. https://doi.org/10.1016/j.measurement.2023.113134