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03 December 2021 The on-line newspaper devoted to the world of transports 11:11 GMT+1



April 27, 2018

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Original news
The Grimaldi group has ordered to the Jinling yard the construction of six hybrid ships ro-ro

The total investment will pile to beyond 400 million dollars

Yesterday the Neapolitan shipowning group Grimaldi has undersigned the order to the Chinese ship yard Jinling for the construction of six ships ro-ro for an investment total of beyond 400 million dollars. The new units, whose delivery is previewed beginning from 2020, will have a length of 238 meters, a width of 34 meters and a tonnage of 64.000 tons. The new ships will be able to transport beyond 7.800 linear meters of goods rotabili, pairs to about 500 trailer. The partenopeo group has specified that the cargo ability of the garages of these ships will be double regarding that of the greatest ships currently operated by the partenopeo group and triple regarding the generation precedence of ships ro-ro, but with the same fuel burnup to speed parity, with an efficiency doubled measured in consumption/transported ton.

Three of the new ships will be operated by Grimaldi Lines in the Mediterranean, while the others three, of the category ice-class, will be acquired by the controlled society Finnlines and employees in the Baltic Sea.

The design of the new constructions calls "Grimaldi Green 5th Generation" (GG5G) is conceived by the Technical department and Energy Saving of the Grimaldi group with the aid of the study of Naval engineering Knud E. Hansen and incorporates innovative elements already patented and copyright-protected partially.

Grimaldi has explained that it will be be a matter of the first exemplary of a new series of ships ro-ro hybrid, that is that they while browsing use fossil fuel and electric power during the pause in port, guaranteeing "zero emission in port". During the pause in dock, they will be in fact able to satisfy the demands for energy for the activities of edge with the single electric power stored from lithium A batteries that are recharged while browsing by means of the shaft generators and with the aid of the so-called system peak shaving, let alone of 600 square metres of solar panels.

The shipowning group has announced that the other main technical innovation of these ships will be the system of the air flows under the keel in the emitted direction of march from numerous nozzles that create a carpet of air bubbles under the ship, that is a system of bearings tires that the hydrodynamic resistance consequently reduces to the advance of the hull and the injurious emissions deriving from the fuel burnup.

Moreover the hull will be painted with special not toxic silicone paintings, than they do not release in water some substance, characterized from lowland superficial rugosità that it will afford to reduce the friction with the sea.

Regarding the sulfur emissions, special devices of edge will arrange sulfur emitted from the propulsive cylinders with salt contained in seawater, taking advantage of some the natural chemical reaction, producing chalk that could be red-use to earth or which disposed in nature.




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