Japan’s National Maritime Research Institute (NMRI), part of the National Institute of Maritime, Port and Aviation Technology, has released an updated version of its OCTARVIA fuel consumption estimation software to include alternative fuels.
The life cycle fuel consumption estimation program, OCTARVIA-web V2, is now live on the NMRI cloud platform, and can be used to estimate ship performance data from key vessel parameters. A companion program, EAGLE-OCT-web V2, will be released next week.
The two systems were developed as part of the Japan Maritime Cluster Collaborative Research Project on the Evaluation of Ship Performance in Actual Seas (OCTARVIA). These latest updates introduce new calculation functions for fuel consumption and greenhouse gas (GHG) emissions from main and auxiliary engines using alternative fuels such as ammonia and hydrogen.
Other updates to the applications include improved accuracy for calculating added resistance in waves and resistance from drifting, addressing potential future trends like slow steaming.
Phase 2 of the OCTARVIA Project took place from March 2022 to March 2024, focused on evaluating ship performance in actual operations at sea to inform the further development of the application. The OCTARVIA2 research group featured 21 participants, including ship owners and shipyards.
