A combined power generation system that utilises waste heat and exhaust gas from diesel engines has been developed by Mitsubishi Heavy Industries (Mhi).

The company said its Super Turbo Generating (STG) system is based on a proprietary controlling system that allows optimised power generation by exhaust-gas power and steam turbines.

The system also reduces the fuel cost of vessels by 10%, it said.

According to MHI, the system comprises an exhaust gas power turbine, an exhaust gas boiler, a steam turbine, a generator, a reduction gear box and a synchronous self-shifting clutch and control system.

The first STG system will be installed in a container vessel which is being built by Daewoo Shipbuilding & Marine Engineering, the company said.

The container vessel is scheduled to be delivered to AP Moller-Maersk in 2011.