OVERVIEW
The prime objectives and drivers of this work package, in alignment with general Clean Sky 2 objectives, are to create a full-scale engine ground test demonstrator for small-medium range aircraft at Ultra High Propulsive Efficiency (UHPE). This is representative of an integrated propulsion system, utilising an existing core engine to demonstrate the overall engine architecture and low pressure (LP) module integration.
This is supported by a Technology Maturation Plan for specific low pressure (LP) technologies dedicated to the novel engine architecture (ducted or unducted), targeting TRL5 by the end of Clean Sky 2.
Innovation, and a bypass ratio of greater than 15:1, is required to satisfy demanding environmental objectives while matching the realities of expected product specifications and market timescales.
All of this necessitates synergies and interdependencies which exist between various activities throughout the Clean Sky programme and the Technology Evaluator.
DESCRIPTION AND OBJECTIVES
Safran Aircraft Engines is leading the design, development and ground testing of an integrated propulsive system demonstrator to mature the low pressure modules and systems and nacelle technology bricks required for the novel engine architecture.
Two main engine architectures will be in competition: a ducted geared engine and an unducted geared engine. Design studies and module test campaigns are part of the technology maturation, supporting the selection of the final architecture to be ground tested.
Multiple maturation studies on the engine will support the consolidation of the architecture for the Ground Test Demo (GTD). Functional analysis at component level and maturation studies on modularity and maintainability will contribute to selecting the architecture (link with Clean Sky’s Large Passenger Aircraft activities). Engine architecture studies and engine integration studies will also contribute to the selection of an architecture with high potential for CO2 savings.
The full scale Integrated Propulsive System (IPS) demonstrator will consist of new low-pressure modules and nacelle parts integrated around an existing or adapted high pressure (HP) core. The second work package aims at delivering specific technologies dedicated to the ultra high propulsive efficiency concept to TRL 5 by the end of the Clean Sky 2 programme.
Several key enabling technologies, in particular the transmission system, the gearbox, and the low pressure turbine, aim to be validated through a dedicated module testing maturation plan. Safran Aircraft Engines is performing numerous studies and analyses to evaluate engine architectures and select the best engine architecture to be ground tested.
Safran Aircraft Engines, linked third parties and Core Partners will work on increasing the readiness level of technologies dedicated to the low pressure module (fan blade and fan systems, booster, transmissions, gearbox and turbine) to mitigate risks to the engine architecture prior to the ground test demonstration of a full scale engine. The design of the propulsion system demonstrator will benefit from the results of test campaigns, modules and components.
Safran Nacelles will develop technologies for the next generation advanced nacelle. Safran Transmissions Systems will prepare the gearbox technologies, while Safran Aero Booster will mainly focus on the booster of the engine demonstrator.
The Core Partners are GKN, GE Avio and GE Deutschland:
- GKN will be involved in specific parts on the low pressure compressor system and they will also investigate advanced manufacturing solutions for the low pressure turbine.
- GE Avio will be involved in the gearbox demonstration plan and will contribute to its design.
- GE DE will mature technologies for the high pressure core, which may be embedded in a next phase of demonstration.
Work package 2 benefits from the contribution of numerous partners, selected through Calls for Partners in order to support technology maturation.
Activities in 2022 and 2023 will focus on the design and delivery of the demo components to prepare the engine ground test campaign. Reaching TRL5, however, may be achieved after the test results analysis in 2024.
The objective will be, therefore, to deliver TRL 5 maturation by the end of Clean Sky 2 for a set of specific low pressure technologies dedicated to a novel disruptive engine architecture.
CONSORTIUM INFO
Member Legal Name |
Company Type |
Country |
Role |
---|---|---|---|
SAFRAN AIRCRAFT ENGINES |
IND |
FRANCE |
WP2 Leader |
SAFRAN NACELLES |
IND |
FRANCE |
WP2.1.4 & WP2.2.3 Contributor |
SAFRAN NACELLES LTD |
IND |
UK |
WP2.2.3 Contributor |
SAFRAN TRANSMISSION SYSTEMS |
IND |
FRANCE |
WP2.3.2 Contributor |
SAFRAN AERO BOOSTERS |
IND |
FRANCE |
WP2.2.5 Contributor |
SAFRAN SA |
IND |
FRANCE |
WP2.2.1 Contributor |
GENERAL ELECTRIC AVIO SRL |
IND |
ITALY |
WP2.3.4 Contributor |
GE AVIATION CZECH SRO |
IND |
CZECH REP. |
WP2.3.4 Contributor |
GE DEUTSCHLAND HOLDING GMBH |
IND |
GERMANY |
WP2.6.1 Contributor |
GE COMPANY POLSKA |
IND |
POLAND |
WP2.6.1 Contributor |
GE MARMARA TECHNOLOGY CENTER |
IND |
TURKEY |
WP2.6.1 Contributor |
GKN AEROSPACE SWEDEN AB |
IND |
SWEDEN |
WP2.2.6 Contributor |
GKN AEROSPACE NORWAY |
IND |
NORWAY |
WP2.2.6 Contributor |
GKN AEROSPACE SERVICES LTD |
IND |
UK |
WP2.2.6 Contributor |
AIRBUS |
IND |
FRANCE |
WP2.1.2 Contributor |
AIRBUS OPERATIONS SAS |
IND |
FRANCE |
WP2.1.2 Contributor |
CONTRIBUTIONS TO THE PROGRAM
AIRCRAFT TYPE TO BE ADDRESSED
Clean Sky A/C: Advanced Short-Medium Range
CONTRIBUTION TO THE HIGH LEVEL OBJECTIVES OF THE PROGRAM
- CO2 Reduction
- NOX Reduction
- Noise Reduction
- Particulate Matter Reduction
- Competitiveness
- Mobility
TECHNOLOGY MATURATION
Technology Level - TRL |
|||||
---|---|---|---|---|---|
Start TRL |
2 |
End TRL |
5 |
Requested funding: €96.000.000