Domestic Gas Meter Durability in Hydrogen and Natural Gas Mixtures

Jacek Jaworski, Paweł Kułaga, Giorgio Ficco and Marco Dell’Isola
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Jacek Jaworski: Oil and Gas Institute—National Research Institute, ul. Lubicz 25a, 31-503 Kraków, Poland
Paweł Kułaga: Oil and Gas Institute—National Research Institute, ul. Lubicz 25a, 31-503 Kraków, Poland
Giorgio Ficco: Department of Civil and Mechanical Engineering, University of Cassino and South Lazio, 03043 Cassino, Italy
Marco Dell’Isola: Department of Civil and Mechanical Engineering, University of Cassino and South Lazio, 03043 Cassino, Italy

Energies, 2021, vol. 14, issue 22, 1-14

Abstract: Blending hydrogen into the natural gas infrastructure is becoming a very promising practice to increase the exploitation of renewable energy sources which can be used to produce “green” hydrogen. Several research projects and field experiments are currently aimed at evaluating the risks associated with utilization of the gas blend in end-use devices such as the gas meters. In this paper, the authors present the results of experiments aimed at assessing the effect of hydrogen injection in terms of the durability of domestic gas meters. To this end, 105 gas meters of different measurement capabilities and manufacturers, both brand-new and withdrawn from service, were investigated in terms of accuracy drift after durability cycles of 5000 and 10,000 h with H 2 NG mixtures and H 2 concentrations of 10% and 15%. The obtained results show that there is no metrologically significant or statistically significant influence of hydrogen content on changes in gas meter indication errors after subjecting the meters to durability testing with a maximum of 15% H 2 content over 10,000 h. A metrologically significant influence of the long-term operation of the gas meters was confirmed, but it should not be made dependent on the hydrogen content in the gas. No safety problems related to the loss of external tightness were observed for either the new or 10-year-old gas meters.

Keywords: hydrogen; natural gas; domestic gas meter; diaphragm; thermal mass; durability; error of indication (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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