Power Range

Diesel or Heavy Fuel: 450 to 97 300 kW
Gaseous Fuel: 2230 to 26 160 kW
Dual Fuel: 2230 to 26 160 kW

Corporate Developments
On the research side, MAN Diesel took a role in the HERCULES project investigating the technology necessary for higher-efficiency marine engines with ultra-low emissions.

Four-Stroke Engines
During 2007, the development of the new 51/60 DF, four-stroke, medium-speed, dual-fuel engine reached major milestones. The 7L 51/60 DF testengine achieved its first direct switchover at maximum continuous rating (MCR) from gaseous fuel operation
with marine diesel oil (MDO) micro pilot to liquid fuel operation with 100% HFO charge. In September 2007, a three-day test and inspection program resulted in Type Approval from several Classification Societies.

The 51/60 DF diesel fuel engine is based on the 48/60B heavy fuel engine and offers 1000 kW/cyl output in both gaseous and liquid fuel operating modes. It is offered in inline versions with six, seven, eight and nine cylinders and Vee configuration versions with 12, 14, 16 and 18 cylinders.

The expansion of MAN Diesel engines with common rail technology was a fourstroke engine highlight in 2007. The type 32/44 CR diesel was launched in September 2006. Field testing of the latest engine to receive common rail technology, 48/60 CR 2006, was undertaken and the first orders received. By mid-2007, the company had already sold 22 of its 32/44 CR engines.

The first order for the 48/60 CR engine is for the propulsion of what is said to be the world’s largest Ro-Pax ferries. The propulsion packages feature twin propulsion trains consisting of one 8L48/60 CR and one 6L48/60 CR.

MAN Diesel engines will power two of the largest catamarans ever built in Australia. The contract involves the first orders received for the 28/33 D diesel since its transfer from the U.K. facilities to the engine works in Augsburg, Germany. The process of progressively increasing the size of MAN Diesel four-stroke, medium-speed engines adapted to liquid biofuels reached a significant milestone when a new cogeneration plant employing the biofuel version of MAN Diesel’s highest powered four-stroke engine went into operation at Mouscron in Belgium.

The plant is operated by renewable energy specialist Electrawinds and is based on a type 18V 48/60 engine rated 17.7 MW. In the meantime, Electrawinds has placed an order for two more 18V 46/60B engines to provide electrical and thermal energy at a chocolate factory, the 250 000 ton per year Barry Callebaut facility at Wieze, near Brussels. The engines have a combined output of 35 MW and will run on stearin.

Launched in 2006, the 32/40 PGI gas engine is currently operating successfully at the grid parallel cogeneration plant at MAN Diesel’s Augsburg works. The 32/40 PGI gas engine also celebrated its first commercial successes in December 2006, when two 12V 32/40 engines each rated 5160 kW at 720 r/min were ordered by Russian energy provider MOSOBLENERGOGAS. A second contract followed in September 2007 from a customer in South America for two 18V 32/40 PGI gas engines each rated 8.1 MW.

Two-stroke Engines
MAN Diesel recently celebrated the 30th anniversary of its first four-stroke diesel engine license with Ssangyong, now an integrated part of the STX Group. In addition to renewing its low-speed license agreements with its Chinese partners in early 2007, MAN Diesel also concluded a license agreement for a 10-year period with the newly established joint venture CSSC-Mitsui Diesel Co. Ltd., known as CMD. The joint venture is owned by Chinese and Japanese lowspeed engine builders, Hudong and Mitsui, with the additional participation of CSSC. As an exclusive licensee of MAN Diesel, CMD will produce the largest low-speed engines, covering a range from 60 to 98 cm bore.

MAN diesel engine

The 51/60 DF dual-fuel engine.

MAN Diesel enhanced its 50 cm bore, low-speed engine program with the launch of a series of MAN B&W brand S50ME-B type engines. These add to the existing, small-bore MAN B&W S35ME-B and S40ME-B engines that were introduced in mid-2006. All the new S50ME-B engines are available in five- to nine-cylinder versions and in three variants (Marks 7, 8 and 9). The entire ME-B program now has an output range of 2975 to 16 020 kW.

In mid-2007, MAN Diesel announced that the global container-transportation company APL had ordered eight, 14-cylinder, MAN B&W 14K98ME-C7 engine to power eight 10 000 TEU ships from Korean builders.

Three of the world’s largest LNG carriers successfully tested propulsion packages featuring two MAN B&W brand 6S70ME-C electronically controlled, two-stroke, low-speed diesel engines, marking a first for MAN Diesel in the LNG sector. The engines will operate on HFO. The vessels are part of a Qatargas project comprising 45 vessels, each fitted with two MAN B&W low-speed prime movers.

The HFO-fueled, ME-C engines are part of the MAN B&W two-stroke engine program that also includes the type MEGI dual-fuel engines and MAN Diesel reports that conversion to dual-fuel operation is being discussed for both the Qatargas and other LNG carrier projects.

Turbochargers
The Business Unit Turbocharger at MAN Diesel has undertaken field tests on its variable output VTA turbocharger technology. VTA stands for variable turbine area, and denotes a system consisting of a nozzle ring equipped with adjustable vanes, which replaces the fixed-vane nozzle rings fitted in MAN Diesel’s standard TCA axial and TCR radial turbochargers.

Control of vane position is fully electronic with feedback or open-loop control with mapped vane adjustment. As a direct replacement for fixed vane nozzle rings, VTA nozzle rings can be readily retrofitted to turbochargers already in the field.

MAN Diesel reported that a TCA series axial turbocharger with VTA technology has achieved favorable results on an HFO burning, MAN B&W type 6S46MC-C engine, in a shallow draft tanker. A further advanced turbocharging project is the development of the MAN Diesel STC sequential turbocharging system. The first engine to be equipped will be the 28/33D engine.

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