How More Electric Technology is Shaping Aero Engine Design

01/02/2017
Auteurs : Eddie Orr
Publication MEA2017
OAI : oai:www.see.asso.fr:16236:18680
DOI :
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How More Electric Technology is Shaping Aero Engine Design

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1 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Trusted to deliver excellence © 2017 Rolls-Royce plc The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc. This information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or associated companies. MEA 2017 Bordeaux 1st Feb 2017 Eddie Orr, FIET Chief of Sector – Aerospace Rolls-Royce Electrical Capability Group How More Electric Technology is Shaping Aero Engine Design 2 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Introduction: Rolls-Royce products today Civil Aerospace Defence Aerospace Marine Power Systems Our engines keep up 400,000 people in the air at any one time 160 armed forces around the world depend on our engines 30,000 commercial and naval vessels use our marine equipment Develop, produce and service energy markets under the MTU and Bergen engine brands Nuclear Design authority for the Royal Navy's naval nuclear plant 3 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 The move to More Electric Propulsion • Over the last 100 years, since Rolls-Royce developed its first Aero Engine the “Eagle”, transportation has become increasingly electrified • This trend has increased sharply over the last decade with the Boeing 787 ‘More Electric Aircraft’ and the ‘Full Electric Propulsion’ Type 45 Destroyer • As we look to the future we see this trend only increasing … • … Rolls-Royce is addressing the challenges, including those for Aerospace Engines 4 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 The Past – ‘Electric’ Warship The Present – The More Electric Aircraft Hybrid Electric Rail & The All Electric Warship The Future – The All Electric Aircraft? More Electric Propulsion 5 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Aerospace Industry Challenges Overall ACARE* Environmental Targets for 2020 The ACARE targets represent a doubling of the historical rate of improvement… * Advisory Council for Aerospace Research in Europe Targets are for new aircraft and whole industry relative to 2000 Reduce fuel consumption and CO2 emissions by 50% Reduce NOX emissions by 80% Reduce perceived external noise by 50% Why the More Electric Aircraft? 6 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Propulsive Efficiency Evolution HBPR turbofan Trent based core HBPR turbofan Advanced core VHBR Ultrafan Advanced core VP Ultrafan Advanced core VP Ultrafan Embedded machine Parallel hybrid / BLI VP ‘fan’ Parallel hybrid Partially distributed VP ‘fan’ Fully distributed Turbo-electric / series hybrid ©2017 Rolls-Royce plc 7 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 3 key areas of focus for product innovation 8 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 The Trent 1000 was tailored for the Boeing 787 Dreamliner™ Built on the success of the Trent family, the Trent 1000 offers airline operators a unique combination. • Trent family experience • Advanced technology • Smart design The Trent 1000 Tailored for the More Electric Aircraft 9 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Unique to 3-shaft architecture • Fuel savings on short range • Best Compressor Operability • Lower idle thrust • Lower noise Intermediate Pressure Power Off-Take However these improvements do have limits 10 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 • Electric Starter / Generator • Electrical Accessories • Electric Actuators • Accessory Gearbox Removed? • Can support a Bled or Bleedless architecture Can a More Electric Engine help? 11 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Could embedding the generator provide additional benefit? Novel Starter Generators 12 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 The Challenges Of Going More Electric • Technology Rolls-Royce Proprietary Information Page 12 of 5 Level 2 Level 3 • Integration • Risk 13 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Potential targets • Aircraft movements are emission-free when taxiing. • Air vehicles are designed and manufactured to be recyclable. • Europe is established as a centre of excellence on sustainable alternative fuels Targets are for new aircraft and whole industry relative to 2000 Reduce fuel consumption and CO2 emissions by 75% Reduce NOX emissions by 90% Reduce perceived external noise by 65% New ACARE Targets for 2050 14 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Will requirements drive a change in engine technology? The S-Curve of Technology Cycles 15 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 2nd & 3rd areas for product innovation 16 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Propulsive Efficiency Evolution HBPR turbofan Trent based core HBPR turbofan Advanced core VHBR Ultrafan Advanced core VP Ultrafan Advanced core VP Ultrafan Embedded machine Parallel hybrid / BLI ©2017 Rolls-Royce plc 17 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Aerospace Industry Challenges • Radical New Aircraft Designs • New potentially disruptive markets and fleet missions • New airframe configurations • Integrated solutions • Development of operating standards • Development of Integrated Power and Propulsion System • Integrated power generation • Integrated propulsor • Electrical power system (@ high voltages) • Energy storage technology • Demonstrator Platforms • Integrated Testing • People and Skills 18 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 Fully Distributed Propulsion Concept Layout Copyright © 2013 Rolls-Royce, plc All rights reserved. Electrically-Powered Fans Single Advanced Gas Turbine Power Electronics 19 ©2017 Rolls-Royce plc MEA 2017 Bordeaux 1st Feb 2017 In Conclusion • Electrical technology is becoming increasingly important across all Rolls-Royce business sectors • Already exploiting the benefits in Marine where weight and space are less important • Big potential in Aerospace however challenges remain • Need to learn from other industries eg Automotive • Rolls-Royce is looking forward to the next 100 years Thank you for your time & attention