EEDI certification from GL
The NSC Group has commissioned Germanischer Lloyd (GL) to provide voluntary energy efficiency design index (EEDI) certification for the whole of its 53-strong fleet. NSC operates 31 container ships, four tankers, four bulkers and 14 multi-purpose vessels.
GL says that voluntary EEDI certification is a way for companies like NSC to prove the efficiency of modern-design ships, allowing them to hold their own in a competitive market against optimised, newly constructed vessels.
EEDI certificates issued so far by GL for NSC ships are said to be very promising; figures verified for eight container ships are all at least 10% below the average for the global fleet, and 20% below the reference line.
In other measures designed to help ship owners and managers operate to maximum efficiency, Reederei Claus-Peter Offen has begun to implement GL’s route specific container stowage (RSCS) notation. The newly introduced class notation, the first of its kind, allows operators to load more containers on deck, accelerate cargo operations in ports and maintain a higher degree of loading flexibility, while at the same time maintaining required safety levels. GL developed the new notation for route dependent container stowage, based on long-term statistical data on wave conditions. It is built around the realistic determination of route specific loads on the deck containers and their lashing systems and will enable container lines to carry more cargo, while accelerating cargo operations in ports and maintaining a higher degree of loading flexibility.
The notoation is available for all GL classed container vessels, but requires lashing software to assist the cargo planner and the crew in providing safe stowage and lashing.
As the maritime industry makes greater use of automated systems, GL says that onboard data networks have become more and more complex, while also integrating safety-critical and non-safety-critical application systems. GL has therefore published new guidelines for marine data networks. The need for the guide comes about from automated systems which use networked cabling rather than individual cables, something which adds to reliability and saves cost and weight, but which brings its own problems of complexity. The same network can be used for functions coming under the type-approval system, such as automation, navigation, alarms and monitoring and public address, as well as non-class related systems like entertainment and private internet access. The required approval covers the entire network, including routers, switches, and process controllers connected with network cables.
There are five different Requirement Classes, differentiating the individual network according to the magnitude of the damage which would result from a potential component or system failure and its effect on the persons onboard, the environment and the technical condition of the vessel. This approach follows the same procedure as the approval process for computer systems under GL's Rules and Guidelines.
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