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system for complete fuel gas handling. hauls. Lloyds Register (LR) has issued designed for tugs and medium sized fer- operator of tugs in the Mediterranean

The SCR technology will be needed an Approval in Principle (AIP) certi? - ries, the company also sees big potential Sea region with a ? eet of approximately when the engines are running on con- cate for the Wärtsilä HY, and the Wärt- in other types of vessels as well. 100 vessels. ventional marine diesel fuel if the vessel silä HY will have dedicated versions for The ? rst order for the new Wärtsilä HY The Wärtsilä HY will be dedicated to exhausts its supply of LNG on long voy- each category of vessels. While the ? rst has been placed by Italy based Rimor- a project for a new 80 TBP (tons bollard ages. The 75m Atair is under construc- versions being made available will be chiatori Riuniti, the biggest owner and pull) harbor tug.

tion at the Fassmer shipyard in Germany and will be owned by Bundesamt für

Seeschifffahrt und Hydrographie (BSH), the Federal Maritime and Hydrographic

Agency. The contract was signed with

Wärtsilä in June 2017.

In all Wärtsilä’s will supply two 6-cyl- inder Wärtsilä 20DF dual-fuel engines capable of running on either LNG or conventional liquid fuels, one 6-cylinder

Wärtsilä 20 engine, two exhaust clean- ing systems, and a Wärtsilä LNGPac fuel storage, supply and control system.

The engines will have Tier III classi? - cation since the dual-fuel engines com- ply with this classi? cation when running in gas mode, and all the engines will be compliant when operating on diesel be- cause of the Wärtsilä SCR systems. In addition, as it is a research vessel and the reduction of noise is paramount to suc- cessful onboard operations, the engines will be double elastically mounted, a special Wärtsilä technique to enable the ship to ful? ll the DNVGL classi? cation society’s ‘Silent R’ rating..

The Hybrid Solution

While Koponen is a champion of

Wärtsilä’s LNG and Gas efforts, he is adamant to say that there is no ‘one-size- ? ts-all’ solution, and there are a plethora of alternative fuels and hybrid solutions comingon the market. In Oslo earlier this year at Norshipping Wärtsilä debuted its

HY Hybrid Power Module, a fully inte- grated hybrid power module combining engines, energy storage system and pow- er electronics optimized to work togeth- er through a newly developed energy management system (EMS). While the company debuted the system in Norway, it also announced its inaugural order fo installation on Rimorchiatori Riuniti’s new tug boat. The system is designed to provide a range of bene? ts through in- creased operational ef? ciency and ? ex- ibility, resulting in lower fuel consump- tion, reduced emissions and improved vessel performance. When operating in ‘Green Mode’ zero emissions can be achieved. Smokeless operation is also achievable at all load points and in all operating modes, thanks to a new patent pending automation procedure. In addi- tion, the reduction in engine operating hours lowers maintenance requirements and extends the intervals between over- www.marinelink.com 21

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