Page 43: of Maritime Reporter Magazine (August 2024)

MS AMERA included C-Job; ABB; Kongsberg; main engine has 16 cylinders with a sume any energy.” and On Site Alignment. cylinder size of 250 mm operating at In addition, a new DC switchboard to-

While the biggest part of the project 1,000 rpm. The rated power per en- gether with new alternators, transform- was the completely new engine setup, gine is 4,700 kW given a total power of ers, bow thruster electric motors, and featuring the high-ef? ciency main en- 18,800 kW to the ship.” the new shore power connection system gines and advanced exhaust gas recir- Key to the selection of Wabtec power were supplied by ABB. culation technology, critical too were was the fact that the exhaust recircula- the new generators and electrical power tion system ensures compliance with the THE POWER PACKAGE solutions, new bow thrusters, the addi- IMO TIER III requirements without the Selecting the powerplant is always a tion of a shore power system and a new need of an SCR system and have no urea critical choice in a newbuild or conver- antifouling hull coating. consumption, said Mass. sion project, and Mass explained the ra-

The ship's previous four main engines Energy ef? ciency extends down the tionale for the move to Wabtec. and three auxiliary engines of the ship powertrain. For example, the two new “Most other next-generation power were removed and replaced with four bow thrusters from Kongsberg have a solutions that could have been consid- new Wabtec 16V250MDC engines. power rating of 1,033 kW each. “The ered require an SCR system. This was “MS Amera will be repowered with thrusters are differently designed com- not an option for the Amera for con- the cleanest diesel engines available,” pared to the previous ones as they are struction reasons, as this would have said Patrick Webb, Senior Director – ? xed pitch and variable speed – previ- required a new exhaust system and

Global Sales, Marine & Stationary, ous ones were ? xed speed and variable urea storage. The solution from Wabtec

Wabtec. “After all these years of faith- pitch,” said Mass. “This allows a reduc- is based on an exhaust gas recircula- ful service, the four Wärtsilä – Sulzer tion in power consumption because the tion system. We have already had good

Marine Diesel Engines have been re- thrusters are only running when they experience with such solutions from placed with the most innovative clean are operated. In standby mode they are Wabtec, for example with smaller ver- engine solutions in the world. The four not rotating, and therefore don’t con- sions of auxiliary diesel engines on the

Wabtec 16V250MDC Dual compliant (EPA Tier 4 and IMO Tier III) Simply

Clean Marine Diesel Engines make this older lady one of the cleanest cruise ships in the world. These low emission engines take advantage of breakthrough technology design (originally funded by General Electric) and now owned by

Wabtec Corporation. These engines are best-in-class clean, quiet, and fuel ef- ? cient with no need for any after-treat- ment, Dox Cabinets, Scrubbers, DP Fil- ters, nor SCR systems. With this simple plug and play solution, the MS Amera was able to receive a full repower with no need for urea tanks or any other space absorbing systems.”

According to Mass, the new main engines are connected on one side of the crankshaft via a clutch and gearbox to the propeller for propulsion and on the other side of the crankshaft to an alternator for electric power produc- tion. “With this setup there is no need any more for auxiliary engines and the main engines can be operated in opti- mized load ranges,” said Mass. “Each www.marinelink.com 43

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