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Embraer Aviation Emissions Overview - Reducing CO2 for Sustainable Skies

Explore how Embraer is leading the way in reducing aviation emissions through advanced technologies, fleet renewal, and alternative fuels. Learn about the environmental impact of aviation and the company's roadmap for a greener future.

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Embraer Aviation Emissions Overview - Reducing CO2 for Sustainable Skies

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  1. EMISSIONS AND AVIATION Embraer Overview 2007 Sep.07

  2. Contents • Aviation and the Environment • Embraer Roadmap

  3. Aviation’s Emissions Today Aviation is responsible for 12% of total transport CO2 emissions. Road transport generates 76% according to the Stern Review*. * Stern Review Annex 7c

  4. Emissions Efficiency Evolution Along Time • Aviation boasts occupancy rates above 70%, more than double the rate for road and rail transportation. • In the past 40 years, aviation hydrocarbon emissions have been reduced by 90%. • In the past 15 years, nitrogen oxides (NOx) generated by aircraft engines have been reduced by 50%. Source: www.enviro.aero

  5. Emissions Contribution by Aircraft Size Commercial aircraft with less than 110 seats are responsible for 9% of total aviation or 0.26% of global CO2 emissions. Global Emissions 2006 Aviation Emissions 2006 *References: FleetPC 31Dec2006; NBAA Industry Statistics; NASA Report Scheduled Civil Aircraft Emission Inventories for 1999.

  6. Embraer Roadmap

  7. Technology Roadmap

  8. Short Term Actions – Fleet Renewal 20% Lower Emissions by Replacing Old jets* by New 70-100 Seaters -20% Emissions *Study considers direct replacement of the entire fleet of BAe146-100/200/300, RJ70/85/100, B737-200/500, F70/100, DC9-30, MD87 by the the E-Jet with similar capacity.

  9. New Technologies Technologies can further reduce Emissions: • Aerodynamics: • CFD • MDO • Wing/Fuselage Design • Alternative Fuels: • Biokerosene LIFT (aerodynamic) F U T U R E A I R C R A F T DRAG (aerodynamic) TRUST (propusion efficiency) • Advanced Systems: • More Electric • Advanced Avionics and Flight Control • Advanced Structures: • Composites • Metallic • Advanced Materials WEIGHT (structural efficiency)

  10. Design Trade-offs Trade-offs are inevitable. Targets for new regulations must consider definition of priorities. • Bigger engines requires higher pressure ratios • Higher engine pressure ratio and bypass ratio reduces: • Fuel burn (CO2) • Reduces Noise (lower exhaust jet velocity). • Higher pressure ratio results higher flame temperature • Reduces CO & HC • Increases NOx Figure extracted from CAEP SG Emissions Workshop, 9 September 2002 Presentation “Technology Transition” - W. Dodds/H.Aylesworth

  11. Thank you!

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