(FRIEDRICHSHAFEN, Germany) — Rolls-Royce will be presenting new MTU brand propulsion systems designed to meet IMO III and EPA Tier 4 emission regulations for commercial, offshore and military vessels and yachts, at the SMM International Maritime Trade Fair from Sept. 6-9.
With a number of technical advances incorporated in the turbocharger system, the combustion process and in the fuel injection system, MTU will be marketing Series 4000 engines as of 2018 that have now been further optimized and will deliver increased performance for workboats, offshore vessels, ferries and government vessels. A 20-cylinder version is to be launched for the first time for these applications. With the new SCR exhaust gas aftertreatment system, which has also been developed by MTU, the advanced engines will meet IMO III and EPA Tier 4 emission requirements. This will reduce NOx emissions by around 75 percent and particulate emissions by around 65 percent. An additional diesel particulate filter will not be required. The Series 4000 engines for yachts will be slightly modified and marketed with MTU’s SCR system, which will meet IMO III regulations as of 2017.
With the integrated system for IMO Tier III and EPA Tier 4 consisting of MTU‘s propulsion system and SCR exhaust gas aftertreatment system, the customer will benefit from an optimally matched system. It requires a minimum of installation space and features an excellent power to weight ratio. The exhaust gas aftertreatment system is extremely compact due to the integration of the reactant preparation section in the SCR box. MTU’s SCR system is not preset as is usually the case, but is adjustable. It measures the emissions upstream and downstream of the SCR system and precisely regulates the amount of reactant introduced into the system.
The new MTU gas engine for marine applications has already successfully completed 3,000 hours on the test bench. An exhibit will be on display for demonstration purposes. Dr. Ulrich Dohle, CEO of Rolls-Royce Power Systems AG, said, “We can now confirm that the engine meets both our requirements and those of our customers: its performance and its acceleration behavior are similar to the excellent characteristics of a diesel engine. It is economical, reliable and clean.”
As of 2018, MTU will deliver the first certified series production gas engines for commercial vessels. The new MTU gas engine will meet IMO III emission standards with no additional exhaust gas treatment. As a result of its dynamic acceleration behaviour, its low environmental impact, reliability and economy, it is ideally suited to tugboats, ferries, push boats and special purpose vessels such as research vessels.
At the SMM, MTU will also be presenting a model of its advanced-design, Series 4000-based diesel genset for submarines, which has a power output of 1,300 kW. The company began delivering the first units this year. It is designed to exploit the potential of Li-on battery technology to the full and provides significantly reduced charging cycles. As a result of the new genset’s lower fuel consumption, the operational range of the vessels with the same size fuel tank has also been increased.
As a systems provider, MTU is also able to develop and supply propulsion solutions which include ship automation systems. The exhibition stand will include a model of a vessel with a propulsion system developed by MTU and incorporating a combination of diesel engines and gas turbines for maximum operational efficiency and flexibility (combined diesel and gas turbine – CODAG). On the stand, the system is exhibited in conjunction with Callosum, the latest, user-friendly automation system developed by MTU. Callosum allows monitoring and optimized control of the vessel’s propulsion system as well as all on-board ship systems. It has proved its effectiveness in demanding operational assignments with numerous navies and coast guard authorities.
Also on show will be a genset model based on the Series 4000. The product is offered by MTU as a diesel-electric propulsion unit or on-board power generator specifically for commercial applications such as supply vessels for offshore oil and gas platforms. Gensets in this product family comprise a working vessel engine of the proven Series 4000 "Ironmen" design with either eight, 12 or 16 cylinders, a generator and the electronic control system all mounted on a common base frame and offering electrical outputs ranging from 720 to 2,140 kWe.