ClassNK is releasing PrimeShip-GREEN/ProSTA, software which analyses and calculates a ship's speed trial results for EEDI calculation in compliance with IMO guidelines. The software enables ship designers to calculate the ship's speed in compliance with ISO15016:2015 and reduces the workload required for EEDI calculation.
To eliminate the effects of external factors during sea trial (wind, waves, current, water depth, sea temperature) and provide a way to analyse and calculate a ship's speed in calm sea conditions, IMO assigned two methods in its guidelines on survey and certification of the Energy Efficiency Design Index. Those were ISO 15016:2002 and the International Towing Tank Conference (ITTC) Recommended Procedures.
In response to requests from IMO to eliminate this dual standard, ISO and ITTC worked together to create the new harmonised international standard ISO 15016:2015, which was published on 1 April 2015. ISO 15016:2015 will be adopted at this month's MEPC68 and is expected to apply to all sea trials from June 2015.
In addition to providing technical support for standard harmonization, ClassNK has also developed support tools such as PrimeShip-GREEN/ProSTA for shipyards, shipowners, and the greater maritime industry to enable smooth adoption of the amended standard.