ClassNK-NAPA software unlocks significant fuel savings
NAPA, global maritime software house, and ClassNK classification society announced that their comprehensive eco efficiency and operational optimization solution ClassNK-NAPA GREEN, has generated fuel savings of 3.9% on a "K" Line container vessel. The software solution was tested in full scale sea trials in January 2014 aboard an 8,000+ TEU container ship operating on a standard Mediterranean/Europe route. The full ClassNK-NAPA GREEN suite of systems were utilized on the voyage, including speed, trim, and voyage optimization based on the ClassNK-NAPA GREEN Dynamic Performance Model, and analyzed against the captain's voyage plan. Despite encountering heavy weather on multiple occasions over the course of the voyage, speed profile and voyage optimization reduced the fuel consumption by 2.7%, while a further 1.2% savings was attributed to optimum trim, taking the total reduction in fuel consumption from the trial to 3.8%. While trim optimization was restricted on this voyage due to loading conditions, results from a full-scale trim optimization study, conducted during two Indian Ocean crossings aboard the vessel, indicated that trim optimization has the possibility to further save fuel up to 4%. In addition it was found that the accuracy of Dynamic Performance Model - the self-learning component of ClassNK-NAPA GREEN - was ...
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