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Incorporating Clean Shipping International

NEW CLASSNK SOFTWARE RELEASE OFFERS LATEST EEDI CALCULATION

Thursday, November 1, 2018 

ClassNK released has released what it describes as the first software that calculates and analyses a ship’s speed for Energy Efficiency Design Index (EEDI) calculation in compliance with the latest guidelines.

MARPOL Annex VI states one parameter for calculating the EEDI of a ship’s speed in calm sea conditions based on speed trial results. To eliminate the effects of external factors during a sea trial (wind, waves, current, water depth, sea temperature) and provide a way to calculate and analyse a ship’s speed in calm sea conditions, the IMO assigned two methods in its Guidelines (2014 Guidelines on survey and certification of the Energy Efficiency Design Index (EEDI)), namely the ISO 15016:2015 and ITTC 2014 Guidelines. However, at MEPC 73 (October 2018), the IMO Guidelines were revised to require compliance with either ISO 15016:2015 or the ITTC 2017 Guidelines.

Class NK’s new program, known as ‘PrimeShip-GREEN/ProSTA ver.ITTC’ follows these latest IMO requirements – the International Towing Tank Conference (ITTC) 2017 Guidelines (ITTC Recommended Procedures and Guidelines 7.5-04-01-01.1, Preparation, Conduct and Analysis of Speed/Power Trials; 2017) for EEDI verification.

The former version, ClassNK’s ‘PrimeShip-GREEN/ProSTA’ has provided shipyards, and the greater maritime industry with has supported shipyards and the marine industry in general since 2015 by calculating a ship’s speed in compliance with ISO 15016:2015. The newly developed PrimeShip-GREEN/ProSTA ver.ITTC has the same user-friendly interface as its predecessor, but ship speed calculations can now be performed in accordance with ITTC 2017 Guidelines.

In addition, to continue providing technical support regarding ISO 15016:2015, the ClassNK has released ‘PrimeShip-GREEN/ProSTA ver.ISO’ which adds more functions to the former “PrimeShip-GREEN/ProSTA”. More information on either package can be found here.

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