Summary is AI-generated, newsdesk-reviewed
  • ClassNK releases journal on marine environment tech trends for 2025.
  • Journal highlights 'Underwater Noise from Ships' and 'Safe Decarbonisation' presentations.
  • Focus on ammonia-fuelled ships and ship noise impacts at ClassNK R&D Forum 2025.

ClassNK has released 'ClassNK Technical Journal No.11 2025 (Ⅰ)'. This issue features the title 'Latest Technological Trends for Protection of the Marine Environment', providing the particularly well-received presentations on 'Underwater Noise from Ships' and 'Safe Decarbonisation’ from 'ClassNK R&D Forum 2025', which was attended by more than 200 participants.

'ClassNK Technical Journal', has been published to contribute to the advancement of technology and society through the outcome of R&D and technical activities.

Contents of the latest issue

The contents of the latest issue are as follows:

Special Feature Articles on 'Latest Technological Trends for Protection of the Marine Environment.'

  • Guidelines for Underwater Noise from Ships and Trends in the IMO, Etc.-
  • Development and Application of Ship Underwater Radiated Noise Estimation Tool for Preservation of the Marine Environment
  • Measurement of Ship Noise in Shallow Sea Area
  • Recent Information on the Development of IMO Guidelines for the Safety of Ships Using Ammonia as Fuel and Initiatives of ClassNK for Practical Application of Ammonia-Fueled Ships
  • Research to Develop Safety Assessment Measures of Alternative Fuel/New Cargo Transportation
  • Commentary on ‘Bayesian Estimation of Ammonia Leak Frequency for Risk Assessment of Ammonia-Fueled Vessels’

Technical Topics

  • Revealing a Fuel-Saving Tip for Main Engine Operation in Rough Sea Conditions-
  • Introduction of Examples of the Use of AIS Data
  • Recent Topics at IMO

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