NSC to implement GL Condition Monitoring Survey Arrangement for Engine Pistons

Classification Societies, News, Technical — By on February 1, 2013 at 12:34 PM
Piston with piston rings seen through scavenge ports of large 2-stroke diesel engine. Source - GL.

Piston with piston rings seen through scavenge ports of large 2-stroke diesel engine. Source – GL.

Hamburg/Germany, 1 February 2013 – German shipping company NSC Schifffahrtsgesellschaft mbH & Cie. KG (NSC) has decided to implement a Condition Monitoring (CM) survey arrangement on the main diesel engine pistons of 49 GL-classed vessels of its fleet. The arrangement was agreed to at the end of 2012 at NSC’s head office in Hamburg by Heiko Meyer, Managing Director of NSC, and Tobias Neumann-Overholthaus, GL’s Area Manager for Central Europe. Implementation of the CM survey arrangement demonstrates NSC’s commitment to promoting efficient ship operation within their fleet, maintaining a high level of reliability and availability, even under difficult and challenging market conditions.

GL’s CM survey arrangement helps ship managers to improve the efficiency of the ship operation in their fleets by supporting cost efficient condition-based maintenance schemes. Condition monitoring trend data, for example from regular inspections through the scavenge ports of large 2-stroke diesel engines, documented in electronic forms provided by the engine designer, are presented annually to experts at GL head office. After evaluation and assessment of the data, according to the engine designer’s instructions and class rules, a statement is sent back to the superintendent and forwarded to the vessel. This statement can then be recognised during the next annual class survey performed by GL surveyors. If there are no indications of areas of concern with the machinery, the surveyor is encouraged to credit the respective components – without resorting to a further open-up inspection.

“The prevention of unnecessary open-up inspections and surveys is one of the significant benefits of the CM survey arrangement, ” says Dr Jörg Rebel, GL condition monitoring expert. “Open-up inspections and surveys, are costly and time-consuming, especially in the case of piston overhauls for large diesel engines. The dismantling and re-assembling of the engines always holds the risk of damaging a system which is running well.”

GL offers the CM survey arrangement for crank-train bearings and pistons of 2-stroke diesel engines, as well as for rotating auxiliary machinery, such as centrifugal pumps, electric motors, fans and purifiers.

Contact for further information: Jörg Rebel, Topic Manager Condition Monitoring (direct +49 40-36149-940, SurveyArrangementCM@gl-group.com).

About NSC
A service provider in the field of ocean shipping, the NSC-Group disposes of a fleet of modern container and multi-purpose vessels, bulkers and conbulkers, as well as car carriers and tankers to meet the most stringent demands. NSC provides an efficient spectrum of services ranging from conception and development of new vessels projects, shipping services, finance management and controlling up to optimal investor relations. Additionally NSC is also active in the operation of cargo contracts.

About Germanischer Lloyd
Germanischer Lloyd (GL) offers classification services of plan approval, inspection and certification of materials and components as well as technical assessments of ships in service. Its “Maritime Solutions” unit supports customers around the world through software solutions, management systems certification and training as well as consulting and engineering services. GL’s experts serve as advisors to governments, the IMO, flag and port states. GL is committed to a smarter, safer and greener future of shipping.
www.gl-group.com

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