ǂa ǂbrief outline of the MetHyInfra project, measurement challenges, and first results
H.-B. Böckler (Avtor), M. de Huu (Avtor), Rémy Maury (Avtor), S. Schmelter (Avtor), M. D. Schakel (Avtor), O. Büker (Avtor), C. Günz (Avtor), D. Schumann (Avtor), F. Gugole (Avtor), Jože Kutin (Avtor), Gregor Bobovnik (Avtor), C. Wedler (Avtor), J. P. M. Trusler (Avtor), M. Thol (Avtor), S. Weiss (Avtor)

Povzetek

This paper gives an overview of the ongoing Joint Research Project (JRP) 20IND11 “Metrology infrastructure for high pressure gas and liquefied hydrogen flows” (MetHyInfra), which will ensure traceability in the hydrogen distribution chain. For this purpose, very precise nozzles with well-defined geometries have been produced. In this project, Critical Flow Venturi Nozzles (CFVNs) will be traceably calibrated for the first time with hydrogen and pressures up to 100 MPa using a Coriolis Flow Meter (CFM) as a secondary standard. A CFM has been successfully calibrated with hydrogen against a gravimetric primary standard. Equations of State (EoS) are important for the high-pressure calibration of the nozzles, but also for Computational Fluid Dynamics (CFD) simulations. With regard to CFD, a numerical model has been developed to simulate high pressure hydrogen flow in the CFVN. In a parameter study, non-ideal nozzle shapes are investigated using a shape variation parameter. New Speed of Sound (SoS) measurements were conducted at temperatures from 273 to 323 K and pressures from 1 to 100 MPa. These new data were then used to develop a new EoS for normal hydrogen, optimized for gas phase calculations. In addition to gaseous hydrogen, the project has a strong focus on liquefied hydrogen. Here a three-pronged approach allows traceable measurements. Each of the approaches presented is based on a unique flow calibration principle and relies on independent traceability schemes. The results of the project will ensure traceable measurements and thus a higher level of confidence among end users.

Ključne besede

vodik;kritične Venturijeve šobe;računalniška dinamika tekočin;enačba stanja;sledljivost;hydrogen;critical flow Venturi nozzles;CFD;equation of state;traceability;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 532
COBISS: 192327939 Povezava se bo odprla v novem oknu
ISSN: 1873-412X
Št. ogledov: 13
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: vodik;kritične Venturijeve šobe;računalniška dinamika tekočin;enačba stanja;sledljivost;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-12
Zvezek: ǂVol. ǂ232, [article no.] 114675
Čas izdaje: Jun. 2024
DOI: 10.1016/j.measurement.2024.114675
ID: 23412190
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