Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen

Green hydrogen is a clean, versatile, and future-oriented fuel that can play a key role in the energy transition, decarbonization of the economy, and climate protection. It offers an alternative to fossil fuels and can be used in various applications, including power generation, industry, and transp...

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Main Author: Zbigniew Gacek
Format: Article
Language:English
Published: MDPI AG 2025-08-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/18/15/4207
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author Zbigniew Gacek
author_facet Zbigniew Gacek
author_sort Zbigniew Gacek
collection DOAJ
description Green hydrogen is a clean, versatile, and future-oriented fuel that can play a key role in the energy transition, decarbonization of the economy, and climate protection. It offers an alternative to fossil fuels and can be used in various applications, including power generation, industry, and transportation. However, due to its wide flammability range, small molecular size, and high diffusivity, special attention must be paid to ensuring safety during its use, particularly in leakage control. This paper provides a review and analysis of equipment leakage testing methods used for natural gas, with a view to applying these methods to the leakage testing of gas meters intended for hydrogen-containing gas mixtures and pure hydrogen. Tests of simulated leaks were carried out using two common methods: the bubble method and the pressure decay method, for three different gases: nitrogen (most commonly used for leak testing), helium, and hydrogen. The results obtained from the tests and analyses made it possible to verify and select optimum leak-testing methods for gas meters designed for measuring fuels containing hydrogen.
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spelling doaj-art-fa92a8e72ede4e1790180a349dfcebda2025-08-20T03:02:58ZengMDPI AGEnergies1996-10732025-08-011815420710.3390/en18154207Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure HydrogenZbigniew Gacek0Oil and Gas Institute, National Research Institute, ul. Lubicz 25a, 31-503 Kraków, PolandGreen hydrogen is a clean, versatile, and future-oriented fuel that can play a key role in the energy transition, decarbonization of the economy, and climate protection. It offers an alternative to fossil fuels and can be used in various applications, including power generation, industry, and transportation. However, due to its wide flammability range, small molecular size, and high diffusivity, special attention must be paid to ensuring safety during its use, particularly in leakage control. This paper provides a review and analysis of equipment leakage testing methods used for natural gas, with a view to applying these methods to the leakage testing of gas meters intended for hydrogen-containing gas mixtures and pure hydrogen. Tests of simulated leaks were carried out using two common methods: the bubble method and the pressure decay method, for three different gases: nitrogen (most commonly used for leak testing), helium, and hydrogen. The results obtained from the tests and analyses made it possible to verify and select optimum leak-testing methods for gas meters designed for measuring fuels containing hydrogen.https://www.mdpi.com/1996-1073/18/15/4207gas metershydrogen measurementgas leakageleakage testing
spellingShingle Zbigniew Gacek
Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen
Energies
gas meters
hydrogen measurement
gas leakage
leakage testing
title Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen
title_full Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen
title_fullStr Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen
title_full_unstemmed Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen
title_short Leakage Testing of Gas Meters Designed for Measuring Hydrogen-Containing Gas Mixtures and Pure Hydrogen
title_sort leakage testing of gas meters designed for measuring hydrogen containing gas mixtures and pure hydrogen
topic gas meters
hydrogen measurement
gas leakage
leakage testing
url https://www.mdpi.com/1996-1073/18/15/4207
work_keys_str_mv AT zbigniewgacek leakagetestingofgasmetersdesignedformeasuringhydrogencontaininggasmixturesandpurehydrogen