K Line Designs LNG-Bulker with Battery and Supplemental Power Systems

K Line looks to add suplementail systems to improve efficiency of an LNG-fueled bulker (K Line)

Published May 13, 2022 5:24 PM by The Maritime Executive

Japan’s K Line working with partners has developed conceptual designs for a new generation of bulk carriers that would minimize emissions while enhancing operational efficiency. The concept uses a core power system enhanced by small-scale electric generation and optional synergistic energy-saving technologies. ClassNK has reviewed the designs and issued Approvals in Principle (AIP) for two sizes of the vessel.

K Line used these elements to develop a conceptual design for a 200,000 ton Capesize bulk carrier in collaboration with Namura Shipbuilding Co. and Taiyo Electric Co. The other design was jointly created by K Line, Shin Kurushima Sanoyas Shipbuilding Co., and Taiyo Electric Co. for a 90,000 ton post-Panamax bulk carrier.

The core power for the vessel is fueled by LNG as the primary source to realize the energy saving and reduced emissions benefits. The design was further enhanced by adopting a permanent magnet shaft generator technology, along with lithium-ion batteries in the core power system. The small-capacity batteries would offer excellent charge and discharge rates being used for auxiliary power during peak hours of onboard demand. They will also be utilized to store surplus electricity.

By adopting the permanent magnet shaft generators, K Line says effici....

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