MAN has revealed a new flagship marine diesel engine in the company's 4x series of high-performance diesel engines called "45/60CR engine". The new 45/60CR marine diesel engine which succeeds the 48/60CR engine will initially be available as 12V and 14V versions with power outputs of 15,600 and 18,200 kW respectively.
The maximum power version of 20V45/60 with 26 MW power output has also been developed for land-based power generation applications and operations.
The new power generation flagship which boasts 26 MW power output leveraging on MAN's extended systems approach is reportedly the world's most powerful four-stroke diesel engine.
Wayne Jones, Chief Sales Officer of MAN Diesel & Turbo, said: “The new engine combines the best features of the current 48/60CR, such as MAN’s common-rail system with ECOMAP capability, and adds new technologies such as two-stage turbocharging for an unrivaled Specific Fuel Oil Consumption. The resultant reduction in operating expenses and positive environmental impact are sure to attract strong market interest.”
The 45/60CR engine soon to be available as 12V and 14V versions will have a 6L to 10L variants later. MAN Diesel & Turbo states that the 45/60CR’s power increase and low consumption are particularly aimed at such key, lifecycle-cost-oriented applications as cruise liners, RoPax ferries, RoRo vessels, and dredgers.
“With this engine, innovative engineering meets the vast experience of a world market-leader in four-stroke engine design. MAN’s 4x family has accumulated millions of operating hours all over the world and we have listened closely to the needs of our customers. Accordingly, we knew exactly where we wanted to go in engineering the next generation of this global success story: We were aiming for a game-changing level in power density and efficiency, and we accomplished that mission.” - Jones said.
Dr. Gunnar Stiesch, Head of Engineering Engines at MAN Diesel & Turbo, said: “Next to a frontloading approach, using thermodynamic engine process calculations, we used computational fluid dynamics to simulate and optimize the combustion process. Also, finite elements analysis was used to optimize the engine’s mechanical strength and vibration behavior. We then put the power unit to the test on the world’s largest, four-stroke, single-cylinder test engine and started the experimental optimization and validation phase.”
With the company’s latest generation digital Safety and Control System, SaCoS 5000 which offers unprecedented data availability and optimized alarm visualization and diagnosis, the new 45/60CR engine is a new centerpiece of MAN’s extended systems approach. “Thanks to the new SaCoS, the MAN 45/60CR is not only online-ready but also equipped for the digital future of power generation”, stated Stiesch.
The MAN 45/60CR engine is powered by two-stage turbocharger module. MAN Diesel & Turbo is the pioneer in developing and operating two-stage turbocharging for large-bore engines, a concept which achieves excellent efficiency thanks to a low-pressure and a high-pressure turbocharger arranged in series.
“We are the only company in the market that develops both engine and turbochargers”, says Stiesch. “This unique, in-house competence allows us to truly tailor-design this engine for optimized two-stage turbocharging and to unleash its full potential. It’s also noteworthy that, despite the turbocharging being two-stage, load pick-up behavior is the same as for the single-stage turbocharged 48/60CR engine. Operators thus profit from maximized peak pressure and optimal utilization of the Miller Cycle.”
With constant demands for increased efficiency and compliance with ever more stringent emissions regulations, amid growing public awareness of its environmental role in modern shipping, the MAN V45/60CR engine enables owners and operators to meet such demands, while simultaneously optimizing operating expenses with unrivaled, low levels of fuel-consumption. Through increasing standardization and using modular sub-components, the new MAN V45/60CR engine also allows faster installation and easier maintenance.
Combining the proven characteristics of its predecessor – the MAN 48/60CR – the features of the new 45/60CR engine are:
- Quick installation
- Easier maintenance
- Increased efficiency
- Low emissions
- Common-rail injection system
- Two-stage turbocharging
- MAN ECOMAP 2.0 technology compatible
- Low levels of fuel-consumption
According to MAN, the new 45/60CR engine is suitable for use in a wide range of marine applications such as ultra-modern cruise vessels, large RoPax and RoRo ferries, mega-dredgers, etc. Its primary focus is on reliable power generation, performance flexibility and superior efficiency in either diesel-electric or diesel-mechanical configurations.
The engine is scheduled for approval by all major classification societies soon.