17 July 2008. In a significant move, A.P. Moller - Maersk has ordered 18 × MAN B&W 6S80ME-C9 engines for a series of container ships.
All of the engines will be built by HHI-EMD, Hyundai’s engine division, with 13 going to Hyundai’s Ship Building Division (HHI-SBD), and the remaining five to Hyundai Samho Heavy Industries (HSHI). The two yards will deliver the newbuilding, 4,500-TEU container ships to A.P. Moller - Maersk during 2011-2012. The 6S80ME-C9 engine type is MAN Diesel’s most modern mark-9 design and is fully compliant with the new, Tier-II emission requirements. Its main parameters can be seen in the following table:
MAN B&W 6S80ME-C9
(standard data for L1 point) |
| Bore (mm) |
800 |
| Stroke (mm) |
3450 |
| Stroke/Bore ratio |
4.31 |
| Speed (rpm) |
78 |
| Power (kW per cyl.) |
4510 |
| MEP (bar) |
20 |
According to A.P. Moller - Maersk, the newbuildings will be built according to the highest environmental and efficiency requirements.
This is confirmed by the hitherto unusual but innovative application of a low-rpm, S-type engine for container-ship propulsion. The lower rpm gives a significant increase in propulsion efficiency, thereby contributing to fuel economy and reduced CO2 emission.
In addition, the company has specified the use of waste-heat recovery technology on each of the engines, which will make the container ships among the most environmentally friendly at sea. A waste-heat recovery system reuses excess exhaust-heat to generate energy for on-board electricity consumption. The associated reduction in fuel consumption results in a corresponding reduction in emissions. It is the first time that an Asian yard is installing a waste-heat recovery system of this size and efficiency. Upon delivery, the ships are intended for service in the strongly growing, sub-Saharan, African market where A.P. Moller - Maersk has extensive interests.