Engines for Green Aviation s Future

Size: px

Start display at page:

Download "Engines for Green Aviation s Future"

Carmel Matthews
5 years ago
Views:

1 Engines for Green Aviation s Future Alan Epstein Vice President, Technology & Environment Pratt & Whitney EcoAviation Washington, June 2010

2 Evolution in By-Pass Ratio, Efficiency, & Noise Turbojets Turbofans Low bypass Turbofans High bypass Lower fuel consumption so - Lower CO 2 - Lower NO x - Lower Cost GTF TM Engine Ultra high bypass Engine certification date

3 Propulsion System Fundamentals High Fuel Burn Noise Better Advanced Turbofan (ATF) 5-10dB lower noise 5~6% better fuel burn Geared Turbofan (GTF) engine Low Low Bypass Ratio Higher Fan Pressure Ratio Fan Diameter High Bypass Ratio Lower Fan Pressure Ratio 2

4 Decades Evolution of Commercial Engines

Aisle 1990s 777/A330 2000s 787/A380-20% 5

4 4 Decades Evolution of Commercial Engines 0-5% -10% -15% 1980s 737/A320 Single Aisle 1990s, 2000s component upgrades 2010s GTFs ENGINE Δ FUEL BURN 1980s 767/A300 Twin Aisle 1990s 777/A s 787/A380-20% Bypass Ratio Bypass Ratio

levels of Stage 4 minus 20 db 1,500 fewer airfoils Lower maintenance cost $1.

5 Innovative New Engine Designs PurePower Engine benefits Fuel burn improvement 12-15% CO 2 emissions reduced by 3000 Tons per aircraft per year NOx emissions cut in half Noise levels of Stage 4 minus 20 db 1,500 fewer airfoils Lower maintenance cost $1.5M annual cost savings per aircraft Gear The Comprehensive Approach to Economic and Environmental Operation

6 Fan Drive Gear System Simple Design Extraordinary Reliability 30,000 hp gear Gear Test Rig 40,000 equivalent take-offs to date with no significant wear

7 PurePower Engines Look Different Ultra-high Efficiency, Low Noise Fan V2500 Engine PurePower Demo Engine Leading Industry Change

8 PurePower Engines Are Different Advanced Nacelle Leading Industry Change

Reliable Gear Light Weight Extra Efficient Fan

9 Three Interlocking Enabling Technologies Proven in Extensive Ground & Flight Testing Very Light Weight Reliable Gear Light Weight Extra Efficient Fan Advanced Nacelle = 15% Improvement in Fuel Burn

10 PurePower Engines 20 Years of New Technology 40K Demo engine 11K Demo engine 30K Flight demos Thrust in thousands of pounds (K) Flight weight design Gear Test Rigs 30K Ground demo Leading Industry Change

11 New PurePower PW1000G Powered Aircraft Bombardier CSeries EIS 2014 Mitsubishi Regional Jet EIS 2014 Irkut MC-21 EIS Bombardier and CSeries are trademarks of Bombardier Inc.

12 Add Value by Reducing Fuel Burn and Noise Propulsion for the 2020s and Beyond High Noise Fuel Burn Turbofan GTF Engine Noise Next Generation GTF Engine >2020 TSFC Fuel Burn Weight & Drag Low Fuel Burn (Higher FPR) (Lower BPR) Fan Diameter (Lower FPR) (Higher BPR)

13 Long Runway for GTF Engine Improvement Ch Reference Lower CO 2 Advanced Open Rotor Noise (EPNdB) Lower Noise Geared Turbofan Engine Advanced GTF Engine 35 Base 5% 10% 15% 20% 25% 30% Engine Fuel Consumption

14 The Value of Speed And Range Cruise Mach Number SHORT MEDIUM LONG A400M Q EMB A A TURBOFANS TURBOPROPS 0.40 ATR Design Range (nm)

Aircraft Configurations Must Generate Value New

PW1000G GTF Engine -15% Cost EIS 2013-2015

15 Aircraft Configurations Must Generate Value New Aircraft Must Drop Ownership Cost By 15% or More PW1000G GTF Engine -15% Cost EIS Reference V EIS Adv GTF Engine -30% Cost EIS Unconventional Installations Gen 3 GTF Engine -45% Cost EIS

16 MIT-Aurora-P&W NASA N+3 Design Concept 70% Fuel Burn Reduction, -70dB Noise

17 Summary Engine innovation delivering green performance gains ~15% fuel burn improvements entering service in ~30% fuel burn gains in 2025~2030 New aircraft configurations may offer dramatic gains Significant gain comes from optimization for low flight speed (M~.74) Most attractive for shorter range applications But, significant technical risk may require an X-plane first Quiet, geared ducted propulsion is the future UHB dramatically drops noise and fuel burn & increases value PurePower Engines set a new standard for the next 30+ years

This document is the property of United Technologies Corporation (UTC).

in it, for any purpose, including without limitation to design, manufacture,

without UTC s express written permission.

18 This document is the property of United Technologies Corporation (UTC). You may not possess, use, copy, or disclose this document or any information in it, for any purpose, including without limitation to design, manufacture, or repair parts, or to obtain FAA or other government approval to do so, without UTC s express written permission. Neither receipt nor possession of this document alone, from any source, constitutes such permission. Possession, use, copying, or disclosure by anyone without UTC s express permission is not authorized and may result in criminal and/or civil liability. No Technical Data

Impact of Aviation on The Environment

Impact of Aviation on The Environment Reducing Environmental Impact With New Technology: The PW Geared Turbofan TM Engine Alan Epstein Vice President Technology & Environment ACI Environmental Affairs Conference Denver, May 2008 Impact of