Abstract
Power-to-gas technology plays a key role in the success of the energy transformation. This paper addresses issues related to the legal and technical regulations specifying the rules for adding hydrogen to the natural gas network. The main issue reviewed is the effects of the addition of hydrogen to natural gas on the durability of diaphragm gas meters. The possibility of adding hydrogen to the gas network requires confirmation of whether, within the expected hydrogen concentrations, long-term operation of gas meters will be ensured without compromising their metrological properties and operational safety. Methods for testing the durability of gas meters applied at test benches and sample results of durability tests of gas meters are presented. Based on these results, a metrological and statistical analysis was carried out to establish whether the addition of hydrogen affects the durability of gas meters over time. The most important conclusion resulting from the conducted study indicates that, for the tested gas meter specimens, there was no significant metrological difference between the obtained changes of errors of indications after testing the durability of gas meters with varying hydrogen content (from 0% to 15%).
Highlights
Transmission and distribution systems for gaseous fuels are required for the reliable and secure transport of such fuels through the network to final customers and to the networks of other operators.Critical functions of the operator in this regard include organizing the gas system, managing network operations, maintenance, repairs, and developing the gas distribution infrastructure
Since individual user groups account for the largest number of consumers on the gas markets, the main focus was on the problem of resistance of diaphragm gas meters as the most commonly used devices in this area
Implementation of the project allowed testing the durability of diaphragm gas meters for various mixtures of high-methane natural gas enriched with hydrogen
Summary
Transmission and distribution systems for gaseous fuels are required for the reliable and secure transport of such fuels through the network to final customers and to the networks of other operators.Critical functions of the operator in this regard include organizing the gas system, managing network operations, maintenance, repairs, and developing the gas distribution infrastructure. The operators provide gaseous fuel transport services based on contracts for the provision of distribution and transmission services concluded with trading companies [1]. They are responsible for the quality of gas being transported. It is estimated that by 2050, the share of renewable energy sources (RES) will account for about 55% of total energy consumption [3]. This means that, with the development of renewable energy, the demand for energy storage will increase.
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