音響技術を用いた水素ステーション蓄圧器の供用中検査手法の開発

抄録

We researched and developed a method to evaluate the presence or absence of the harmful defect of the type 2 pressure vessel in non-open operation and non-destructive by applying the acoustic emission (AE) measurement technologies. As an alternative to the conventional open inspection for hydrogen station accumulators, it is expected that the safety response of hydrogen-related businesses will be optimized. Regarding the in-service inspection method based on the results of this R&D project in NEDO for the duration spanning fiscal years 2018 to 2022, a private standard (Japanese Society for Nondestructive Testing Standards, NDIS) was established in October 2023.