A project aimed at developing a new gas turbine for next-generation marine propulsion called Super Marine Gas Turbine (SMGT) is presently being advanced in Japan among the rising global concern for environmental issues. Gas turbine technology is attractive for next generation marine propulsion as it offers potential for significant reduction in NO(x) emissions compared with conventional diesel engines. It also offers advantages such as more compact and light-weight unit, higher power output, reduced maintenance, and low vibration and noise, which are expected to produce lots of profits when installed as prime mover on vessels. However, economic considerations such as higher fuel consumption and higher component prices have prevented the ship-building industry from adopting gas turbine technology. Subsequently, today, gas turbine technology applications are limited to high-speed cruise ships and naval vessels. The objective of the SMGT program is to develop a marine gas turbine propulsion system that can generate 2500 kW power, use marine diesel oil and reduce fuel consumption by 30 % compared with existing industrial gas turbines in the same output power class. It will also reduce NO(x) emissions to below 1 g/kWh or to one-tenth of existing marine diesel engines, or one third of existing industrial gas turbines. Unlike most other gas turbines, the SMGT is not based on an aircraft engine design. The engine applied a regenerative cycle with a recuperator in the exhaust duct in order to achieve higher thermal efficiency. The innovative lean pre-mixed pre-vaporized combustion technology enables the SMGT to achieve low NO(x) emissions for liquid fuels such as marine diesel oil. This paper shows the excellent results for the core research and development phase and the outline of endurance test phase.
Development of new gas turbine for next-generation marine propulsion system (Super Marine Gas Turbine)
Entwicklung einer neuen Gasturbine für Schiffsantriebe der nächsten Generation
2004
9 Seiten, 17 Bilder, 2 Quellen
Conference paper
Storage medium
English
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