Skip to main content
Marine
systems
GE Aerospace

Advanced

technology

GE Aerospace’s Global Marine business offers customers the latest advances in propulsion systems, exhaust energy recovery systems, and combustor systems.
    GE Aerospace

    Advanced gas turbine cycles for ship propulsion


    Propulsion architecture is based on the power required, the duty cycle, environmental concerns, and many other factors. Below are a few of the most popular cycles used for ship propulsion employing
    GE Marine gas turbines:
    • Combined gas turbine system mechanical drive - driving propellers (COGAG)
    • Combined gas turbine and diesel mechanical drive (CODAG)
    • Combined gas turbine or diesel mechanical drive (CODOG)
    • Hybrid drive options: combined diesel electric or gas turbine (CODOG)
    • Integrated electric propulsion combined gas turbine and/or diesel electric
    GE Aerospace
    Exhaust energy recovery systems
    GE provides efficient heat-to-power products.
    • Closed loop system uses CO2 as the working fluid to convert exhaust energy into electricity, with system efficiency approaching 50%
    • Properties of CO2 provide for a smaller, more efficient, and cost-effective waste heat recovery system
    • The system works efficiently with exhaust gas supplied by either gas turbines or diesels with exhaust temperature ranging from 464°F to 1112°F (240°C to 600°C)
    GE Aerospace
    Dry Low Emissions
    combustor system

    GE Aerospace’s optional Dry Low Emissions combustor system produces emissions lower than current marine requirements. It meets IMO Tier III NOx emissions limits with no exhaust treatment system.
    • Can burn multiple fuels including LNG
    • No methane slip
    • Handles gas fuel variation with Wobbe #40-60 and may be able to accommodate a lower number on GE Marine review
    • Meets further NOx reduction for the 2030 zero-emission vessel targets