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BV launches first rules for hydrogen vessels

  • Spanish Market: Hydrogen, Oil products
  • 30/11/23

Classification society Bureau Veritas (BV) has released its first set of classification rules (NR678) for vessels powered by hydrogen, complimenting the existing rules (NR547) on fuel-cell powered vessels which were launched last year.

The rules are designed to ensure the "safe development of hydrogen propulsion in the maritime sector", according to BV. They will set out technical specifications and requirements for the safe bunkering, distribution, preparation, storage, and use of hydrogen as a fuel source for onboard power production.

The rules also present guidelines on safety given the need to store the fuel in very high pressure or low temperature conditions. This includes the positioning of a bunkering station and cryogenic tanks, explosion and fire protections, water spray systems and fire extinguishing mechanisms.

BV said the rules are designed to mitigate the risks of hydrogen leakage, fire or explosion. It recommended a risk assessment of the engine under the "Hazid analysis", and also covers provisions for dual-fuel engines. Moreover, the classification rules cover "hydrogen-prepared" vessels that are designed to be compatible with the installation of a hydrogen fuel system at a later date.


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