HY-SAFETY_Risk and Reliability-based design of Hydrogen Transmission Pipelines

Implementing safety standards are key in scaling hydrogen as an energy carrier and fostering international trade. However, it can be a challenge to scale hydrogen as an energy carrier at the pace required to meet decarbonization targets while also achieving satisfactory hydrogen safety. A possible interesting solution to these challenges is to integrate the offshore wind farm with hydrogen/fuel cells system using electrolysers and producing the hydrogen (offshore or onshore), transporting it through pipelines and then converting the hydrogen back to electricity by stationary fuel cells. However, hydrogen may have several damaging impacts on the transmission pipelines, such as: Hydrogen Embrittlement (HE) / reduced fracture toughness, reduced fatigue life of pipeline, etc. Therefore, it is essential to perform a proper risk analysis of hydrogen transmission pipelines to establish a reasonable and practical safety standard. Besides, a structural reliability-based design approach for the hydrogen pipelines can rationally be applied to account for the uncertainties involved in the design of such a system.