A hidrogén földgázhálózatba történő bekeverése. Műszaki és üzemeltetési kihívások
Blending hydrogen into the natural gas network. Technical and operational challenges
Keywords:
földgázhálózat, hidrogén gazdaság, hidrogén-betáplálás, gázmérés, hidrogén hatásokAbstract
In the process of decarbonization, the integration of hydrogen into the existing natural gas pipeline network attracts increasing attention. By utilizing the gas network infrastructure, the high costs of a dedicated hydrogen pipeline can be avoided. However, even with a small amount of hydrogen blending, complex changes can be achieved in both the transport and thermodynamic behaviour of the mixtures. In this article we give a concise overview of the technical challenges arising from mixing, examining the changes in the most important gas properties: viscosity, density and calorific value. To achieve higher hydrogen ratios, the compatibility of the entire system, flow profile, safety and performance must also be analysed. The publication was based on analyses and laboratory studies of previous projects.
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