Page 85: of Maritime Reporter Magazine (October 2018)

Rolls-Royce will be offering complete hybrid propulsion systems from MTU for

Photo: MAN ships, including engines, electric drives, transmis- sion, batteries, monitoring and control systems.

The compact modular ex- haust gas after-treatment system from MAN is designed to meet the requirements of both IMO Tier III/EPA Tier 4.

Photo: Rolls-Royce were a key component in enabling Wärt- NOx limit of 1.8 g/kWh and a particu- New MTU hybrid propulsion systems applications,” said Knut Müller, head of silä’s hybrid solution, which uses batter- late emissions limit of 0.04 g/kWh. The In 2020, Rolls-Royce plans to launch MTU’s Marine and Government busi- ies for fuel savings. It emphasized that regulation has been in force since Octo- a range of integrated MTU hybrid ship ness. With the aid of a modular system, any energy source could be connected ber 2017 for all U.S.-? agged commer- propulsion systems that will also be we will make available integrated hybrid to the DC-Hub. Watch an interview with cial vessels with an output of more than made available for yachts, workboats, propulsion systems that are tailored to

Asbjørn Halsebakke at: 600 kW (816 hp) per engine and equates ferries and patrol boats in a power range the customer’s speci? c requirements.” https://www.marinelink.com/ to a reduction in NOx of almost 68% extending from about 1000 to 4000 kW Rolls-Royce will be offering complete compared to the previous standard, U.S. per power train and the company is plan- hybrid propulsion systems from MTU videos/video/modern-? exible-power-

Tier 3. ning to test a new MTU hybrid system for ships, consisting of MTU internal for-commercial-ships-100273

With its 12-cylinder engines, MAN incorporating Series 2000 engines in a combustion engines, electric drive mod-

MAN: Meeting IMO Tier III in Engines currently offers a consistent yacht in 2019. ules, transmission systems, batteries,

Workboats range of outputs from 551 to 1,066 kW “The combination of diesel engines monitoring and control systems, and

MAN Engines introduced its solution for the US Tier 4 emissions standard and electric motors, in addition to batter- other electronic components.

for meeting the IMO Tier III and US and up to 1,213 kW for the IMO Tier III ies, will offer our customers signi? cant The systems will be offered in a va-

EPA Tier 4 emission standards for com- emissions standard. This portfolio will bene? ts in a variety of marine applica- riety of power ranges to suit individual mercial use, the modular exhaust gas af- be continuously expanded to include tions, the most important being ef? - customer requirements. As of 2020, sys- tertreatment system (EAT). The system other power outputs. ciency, environmental compatibility and tems incorporating MTU Series 2000 is designed to be compact and ? exible to the ? exibility of the propulsion system engines combined with one or two elec- www.engines.man.eu accommodate a wide range of installa- tion con? gurations.

The centerpiece of the SCR is a cata- lytic converter that helps to reduce NOx emissions. To achieve this, a 32.5% aqueous urea solution (AdBlue) is dosed in an SCR mixer and then injected con- tinuously and directly into the exhaust tract. The solution then reacts with the nitrogen oxides and converts them into water and nitrogen. The injection meth- od does not require compressed air, which provides another saving on space and reduces the complexity of the sys- tem.

Combined with the optimized combus- tion performance of MAN engines, the

SCR catalytic converter meets the re- quirements of both emission levels IMO

Tier III and US EPA Tier 4. Using the

SCR results in speci? c fuel consumption being additionally reduced by up to 8% per engine while maintaining the same power output.

In the marine sector, the SCR system is currently proving its practicality in

Thrustmaster’s complete line of mechanical and hydraulic azimuthing thrusters are trusted ? eld trials for commercial workboat ap- sY?ŽwGŽIlSGwŽ?lEGwAYEsYOE?YAwsÐAuu?ÐŽ?sOŽYGESGA|?usOŽÐG?AOŽY??tslS?s?G??Ð plications. The MAN SCR system also lŽ?DtAYEÐŽYIO??AOŽY?sYÐu?EsYO?YEG??AlG?wŽ?YlAduG??Gl?AÐlAduG?AYEŽ?ldŽA?E?

meets the requirements of the US Tier dS???lwA?lG?SA?A?Žu?OŽYIŽ?G|G??SGA|?usOAÐÐusÐAOŽY?

4 emissions standard, which permits a ????dS???lwA?lG??YGl www.marinelink.com 85

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