Mitsubishi Heavy Industries, Japan, has completed its first unit of the STG (Super Turbo Generating) system, a marine-use, high-efficiency, combined power generation system that utilises waste heat and the exhaust gas from diesel engines.
The STG system reduces the fuel cost of vessels by ten percent and effectively recovers exhaust gas energy.
The STG System is the most recent type of the company's MERS (Mitsubishi Energy Recovery System) that utilises waste energy from marine diesels for power generation.
The first STG System will be installed in a container vessel currently being built by Daewoo Shipbuilding & Marine Engineering, Korea, and will be delivered to A.P. Møller-Mærsk in 2011.
Celebrating the completion of the first unit, a ceremony was held last week at the Mitsubishi's Nagasaki Shipyard & Machinery Works.
MHI has already received orders for 38 units of the STG System and is also receiving inquiries. Many of these orders and inquiries are for use on container vessels, which carry numerous energy-consuming refrigeration/chilling container units. With the successful completion of the first unit, MHI plans to reinforce its marketing activities targeting newly-built vessels.
The STG System comprises an exhaust gas power turbine, an economiser (exhaust gas boiler), a steam turbine, a generator, a reduction gear box and an SSS (synchronous self-shifting) clutch and control system.
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