Project: Metrology infrastructure for high-pressure gas and liquified hydrogen flows

Acronym	MetHyInfra (Reference Number: 20IND11)
Duration	01/06/2021 - 31/05/2024
Project Topic	Hydrogen is finding growing use as an energy source in applications where requirements for carbon emission reductions are urgent and hard to achieve by electrification alone. Supported by zero-carbon generation, hydrogen fuel cells emit no CO2, and could become competitive for propelling large and frequently-used vehicles while producing no harmful air pollutants. Indeed, the European Green Deal incorporates an EU Hydrogen Strategy to expand its usage where it can replace fossil fuels. For ease of re-fuelling, and to provide practical onboard storage and marketable range, hydrogen fuel is compressed into liquid form. Consumer acceptance requires confidence that what will be metered at hydrogen pumps will match what will be charged, as could be achieved by implementing traceable calibration chains. However, such measurement infrastructure does not yet exist: laboratories can use critical nozzles as reference flow meters but these are not reliable at such high pressures, resulting in flow measurement uncertainties of about 1 % to 2 %. The project will develop liquefied hydrogen flow technologies targeting measurement un-certainty down to 0.3 % to 0.8 %. Specifically, critical nozzles and master meters will be developed as calibration standards for gaseous hydrogen at high pressures. Also, sonic nozzles will be designed, high-pressure hydrogen flow computer modelling investigated, and test rigs developed. Calibrated nozzles would provide enhanced measurement capabilities and ensure trace-ability of hydrogen flow measurements, sufficient to ensure trustable measurement and billing and, therefore, faster acceptance of hydrogen as a fuel.
Website	visit project website
Network	EMPIR
Call	EMPIR Call 2020

Project partner

Number	Name	Role	Country
1	Physikalisch-Technische Bundesanstalt	Coordinator	Germany
2	Césame-Exadébit SA	Partner	France
3	Justervesenet	Partner	Norway
4	Eidgenössisches Institut für Metrologie METAS	Partner	Switzerland
5	TUV SUD Limited	Partner	United Kingdom
6	RISE Research Institutes of Sweden AB	Partner	Sweden
7	VSL B.V.	Partner	Netherlands
8	EP Ehrler Prüftechnik Engineering GmbH	Partner	Germany
9	MECAS ESI s.r.o.	Partner	Czech Republic
10	Imperial College of Science, Technology and Medicine	Partner	United Kingdom
11	ITS Ingenieurbüro, Thomas Steuer	Partner	Germany
12	Maximator Hydrogen GmbH	Partner	Germany
13	Ruhr-Universitaet Bochum	Partner	Germany
14	Univerza v Ljubljani	Partner	Slovenia
15	Bronkhorst High-Tech B.V.	Observer	Netherlands
16	DNV Netherlands B.V.	Observer	Netherlands