Home' Ships and Shipping : April 2011 Contents MAN Diesel & Turbo has announced that its latest, mark-9,
80cm-bore engine recently passed its type approval test (TAT).
The super-longstroke S80ME-C9 engine now powers a Maersk
Line container vessel and successfully completed its TAT at
HHI-EMD, the Engine and Machinery Division of Hyundai Heavy
Industries in Korea.
The TAT programme ran over three days and was completed
in January after a comprehensive series of test runs. All
international classification societies were represented during the
presentation of the engine, test-bed trials, safety-device tests,
performance-data survey and a thorough, internal inspection of
the engine and disassembled key components. The societies were,
in turn, followed closely by a large group of interested parties,
including representatives from the shipowner, shipyard,
HHI-EMD and MAN Diesel & Turbo.
The conclusion of the TAT was marked by a ceremony where
results were summarised before the IACS members signed the
The S80ME-C9 engine that underwent the TAT is the fourth in
a series of 22 ordered by Maersk Line for its new fleet of
4,500TEU container vessels. Constructed at Hyundai Heavy
Industries in Korea, each engine is delivered with waste-heat
recovery (WHR) technology, including power-turbine and steam-
With WHR, exhaust gas is removed from the main engine
before the turbocharger(s), which results in less air passing
through the engine and, accordingly, a slightly increased fuel-oil
consumption. However, by utilising the extra energy in the
exhaust gas in the power and steam turbines, the overall
efficiency of the complete system is increased significantly.
When this is calculated in terms of fuel-oil consumption, a
reduction of approximately ten to 15 percent can be achieved,
according to MAN Diesel & Turbo.
Overall, the S80ME-C9 engine performed well, both as an
individual unit and in combination with WHR. Recently, MAN
B&W engines introduced a new efficiency-optimised layout that
includes increased scavenge-air and maximum-combustion
pressures. With the latest technology, it is possible to reduce specific
fuel-oil consumption by two g/kWh without increasing NOx
emissions, a fact confirmed by the S80ME-C9 engine during testing.
Upon completion of its test programme, the two-stroke
MAN B&W engine was subsequently installed aboard the
Maersk Line container ship. The newbuilding, powered by the
S80ME-C9 type, then successfully underwent a week’s sea trials
in March 2011.
The S80ME-C9 engine’s principal specifications include:
Number of cylinders:
For further information contact:
MAN Diesel & Turbo, Germany.
The TAT opening meeting with representatives from MAN Diesel & Turbo,
HHI-EMD and the classification societies
MAN B&W S80ME-C9 engine successfully passes extensive type approval test
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