Embraer overview 2007
Download
1 / 11

Jorge Ramos de Oloveira Emissions ... - PowerPoint PPT Presentation


  • 274 Views
  • Updated On :

EMISSIONS AND AVIATION. Embraer Overview 2007. Sep.07. Contents. Aviation and the Environment Embraer Roadmap. Aviation’s Emissions Today. Aviation is responsible for 12% of total transport CO 2 emissions. Road transport generates 76% according to the Stern Review*.

Related searches for Jorge Ramos de Oloveira Emissions ...

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Jorge Ramos de Oloveira Emissions ...' - EllenMixel


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Embraer overview 2007 l.jpg

EMISSIONS AND AVIATION

Embraer Overview 2007

Sep.07


Contents l.jpg
Contents

  • Aviation and the Environment

  • Embraer Roadmap


Aviation s emissions today l.jpg
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


Emissions efficiency evolution along time l.jpg
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


Emissions contribution by aircraft size l.jpg
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.




Short term actions fleet renewal l.jpg
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.


New technologies l.jpg
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)


Design trade offs l.jpg
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



ad