How the More Electric Aircraft is influencing a More Electric Engine and More!

03/02/2015
Auteurs : Colin Smith
OAI : oai:www.see.asso.fr:10638:12708
DOI : You do not have permission to access embedded form.

Résumé

How the More Electric Aircraft is influencing a More Electric Engine and More!

Métriques

58
8
2.16 Mo
 application/pdf
bitcache://388cf430e5fc9f7299edf653202bbe2362b96cc2

Licence

Creative Commons Aucune (Tous droits réservés)

Sponsors

Organisateurs

logoaaaf-05_162x120.jpg
logo_see.gif

Sponsors

airbus.jpg
logo_safran_lps_grand.png
logo-aero-def-fd-blanc.jpg
logoirtsaintexupery.jpg
logo_onera.jpg
logotoulousemetropole.jpg
craquitaine.jpg
crmip.jpg
<resource  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                xmlns="http://datacite.org/schema/kernel-4"
                xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4/metadata.xsd">
        <identifier identifierType="DOI">10.23723/10638/12708</identifier><creators><creator><creatorName>Colin Smith</creatorName></creator></creators><titles>
            <title>How the More Electric Aircraft is influencing a More Electric Engine and More!</title></titles>
        <publisher>SEE</publisher>
        <publicationYear>2015</publicationYear>
        <resourceType resourceTypeGeneral="Text">Text</resourceType><dates>
	    <date dateType="Created">Thu 19 Feb 2015</date>
	    <date dateType="Updated">Mon 20 Mar 2017</date>
            <date dateType="Submitted">Sat 17 Feb 2018</date>
	</dates>
        <alternateIdentifiers>
	    <alternateIdentifier alternateIdentifierType="bitstream">388cf430e5fc9f7299edf653202bbe2362b96cc2</alternateIdentifier>
	</alternateIdentifiers>
        <formats>
	    <format>application/pdf</format>
	</formats>
	<version>32139</version>
        <descriptions>
            <description descriptionType="Abstract"></description>
        </descriptions>
    </resource>
.

1 Trusted to deliver excellence © 2015 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. How the More Electric Aircraft is influencing a More Electric Engine and More! European Conference on More Electric Aircraft Toulouse, February 4-5, 2015 Colin Smith CBE FRS Director of Engineering and Technology, Rolls-Royce plc 2 Colin Smith CBE FRS • Joined Rolls-Royce in 1974 as an undergraduate apprentice • Chief Engineer of Small Engines in Bristol • Chief Engineer for the Trent 500 and Trent 700 Engine projects • Director of Research and Technology in 2001 • Director of Engineering and Technology in 2005 Unlike Sir Henry Royce, not an Electrical Engineer by background! 3 A brief history of Rolls-Royce 1884 FH Royce & Co 1899 Royce Ltd 1904 Rolls meets Royce 1906 Rolls- Royce Ltd 1931 'R' Engine wins Schneider Trophy 1940 Merlin helps win Battle of Britain 1940s R-R begins Gas Turbine Development 1953 Dart & Avon enter Civil Market 1969 1st run of RB211 1990 1st run of Trent 1966 Bristol Aero Engines acquired 1995 Allison acquired 1999 Vickers acquired 2000 BMW Aero Engs acquired 2013 TrentXWB Certification 1914 1st R-R Aero Engine 1880 1900 1920 1940 1960 1980 2000 4 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 5 The move to a More Electric Engine • Over the last 100 years transportation has become increasingly electrified • Increased sharply over the last decade with the Boeing 787 ‘More Electric Aircraft’ • As we look to the future this trend will only increase… • … and the Engineering challenges are great! 6 ‘Electric’ Warships of WWII • Launched in 1918; the USS Mexico was claimed to be the worlds first Electric Warship • Used 20% less fuel than it’s two sister ships which had conventional direct drive turbine. • The design used in the Tennessee class battleships The Electric Revolution In Marine Propulsion Rim Driven Tunnel Thruster • Thrusters of this type are installed on all type of vessels • They are used for harbour manoeuvring and ship positioning during operations at sea • Rolls-Royce produce ~500 thrusters per year 7 The Present – Key driving factor Why the More Electric Aircraft has changed the gas turbine The Future – Key Driver How the all Electric Aircraft will impact the propulsion system The move to a More Electric Engine Contents 8 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% The move to a More Electric Engine Present - Key driver 9 How the More Electric Aircraft has changed the Gas Turbine IN: Fuel Start air OUT: Thrust HP air Wing anti-ice air Electricity Hydraulics Fuel Start air Electricity (hotel mode) Cabin air (hotel mode) Air Hydraulics Cabin air Pneumatic Wing anti- ice ECS RAT APU Cabin airHP air Electricity, Hydraulics (emergency) Conventional More electric IN: Fuel Electric start OUT: Thrust Electricity Fuel Electric start Electricity (hotel mode only) Cabin air Air Options Electrical actuation Cabin air Electrical wing anti- icing New APU design Bleed Deleted RAT ECS Increased complexity of system control including Engine 10 How the More Electric Aircraft has changed the Gas Turbine 1980 20001990 2020 20302010 PowerRequirements[kW] 500 1000 1500 2000 Hybrid / All Electric Aircraft More Electric Aircraft B787 A380 F4 - 60kW F35 F14 Conventional B767 Progression of Aircraft Electrical Power Requirements 11 Power Optimised Aircraft Project • 43 European aerospace partners The objectives were: • To test candidate technologies • To find out what are the critical design issues associated with installing these technologies. • The engine test was to prove the capability of these technologies it was not a product demonstrator Examples of Previous Rolls-Royce Experience SEED (Small Electric Engine Demonstrator) • Single Spool Core Demonstrator Engine on Build Stand • The first in-house Rolls-Royce engine with embedded electric start 12 The Trent 1000 has been 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 move to a More Electric Engine Trent 1000 – Tailored for the More Electric Aircraft 13 Unique to 3-shaft architecture • Fuel savings on short range • Best Compressor Operability • Lower idle thrust • Lower noise Challenges surrounding Electrical to Mechanical stiffness • Sustained Torsional oscillation • Increased integration of systems The move to a More Electric Engine Intermediate Pressure Power Off-Take 14 • Novel Starter Generator • Electrical Accessories • Electric Actuators • Advanced Bearings • Potential to remove the Accessory Gearbox • Can be Bled or Bleedless engine The move to a More Electric Engine Key technology components 15 The move to a More Electric Engine The main challenges Rolls-Royce Proprietary Information Page 15 of 5 Technology • x1 order of magnitude for Thermal Integration • X2 order of magnitude for Power Electronics • X3 order of magnitude for Technology Risk • Customer has zero tolerance to programme delay 16 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% The move to the More Electric Engine & more! Future Key driver – New ACARE Targets for 2050 17 The move to the More Electric Engine & more! The S-Curve of Technology Cycles 18 Distributed Electrical Aerospace Propulsion (DEAP) project • Technology Strategy Board and Industry funded project (value £1.07M); • Partners are Airbus Innovation, Rolls-Royce and University of Cranfield; • Started in early 2013 and runs until 2015; • Key innovative technologies: • Improved fuel economy • Reduced exhaust gas and noise emissions • Distributed Propulsion (DP) system architecture • Boundary Layer Ingestion (BLI) The move to the More Electric Engine & more! Fully Distributed Propulsion 19 The move to the More Electric Engine & more! Fully Distributed Propulsion Concept Layout Copyright © 2013 Rolls-Royce, plc All rights reserved. Electrically-Powered Fans Single Advanced Gas Turbine Power Electronics 20 The move to the More Electric Engine & more! Fully Distributed Propulsion Concept Layout 21 The move to the More Electric Engine & more! The main challenges Superconducting electric machines Very high power dense advanced Power Electronics Cryogenic cooling 22 The move to the More Electric Engine & more! Challenges - Advanced Power Electronics  N-Technology Stream (Now Generation) - Silicon based technology developed from automotive experience;  N+1 Technology Stream (Next Generation) - New generation Integrated Silicon Carbide or Gallium Nitride Devices - Ultra Efficient (>99%)  N+2 Technology Stream (Generation after next) - A suite of technology streams will be developed by our network of University Technology Centres ready for later technology insertion 23 The move to the More Electric Engine & more! Challenges - Cryogenic Cooling Cryogenic Cooling for Distributed Propulsion Actual Estimated 24 In Summary • Rolls-Royce is well positioned to understand how a shift to a More Electric Aircraft will impact its product offering • However, the full electrically powered MEA is some way off and • To get there many technical challenges such as increased control and integration of systems will be required • Electrical technology is increasingly important across all our business sectors • Already exploiting the benefits in Marine where weight and space are less important • Need to learn from other industries eg Automotive • RR looking forward to the next 100 years Thank you for your time & attention 25 Questions Copyright © 2013 Rolls-Royce, plc All rights reserved. “Invent once, re-use many times.”