Green Rotorcraft - GRC4 - Diesel - IPAS 2011

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Light helicopter powered with a diesel engine

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Green Rotorcraft - GRC4 - Diesel - IPAS 2011

  1. 1. Future Green Rotorcraft Light Helicopter Powered with a Diesel Engine© 2011 – all rights reserved Yves Favennec (Eurocopter) 1 1 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  2. 2. Rationale for Diesel engines on helicopters (1) What is stakes? Aviation impacted by global CO2 => ACARE target: -50% emission problem Operators’ business threatened by => fuel consumption per FH soaring fuel cost© 2011 – all rights reserved Helicopter configuration less energy-efficient Inherent to hovering capability than fixed-wing A/C 2 2 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  3. 3. Rationale for Diesel engines on helicopters (2) What about engine fuel efficiency?  Incremental fuel-efficiency improvements for small turbo-shaft engines  Major improvement opportunity offered by Diesel technology: Specific Fuel Consuption (g/kW/hr) POTENTIAL: typical turboshaft SFC More than 30% 1000 fuel/CO2 economy typical modern Diesel engine on a typical H/C Huge gain in mission profile© 2011 – all rights reserved cruise, descent Sizable gain at Take-Off 0 0% Output Shaft Power (fraction of MTOP) 100% Even higher benefits in hot/high conditions 3 3 Engine size effect Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  4. 4. Demonstration Project Members Clean Sky Member / Topic Manager HIPE AE440 Consortium (Clean Sky Partners) Participant Project Coordinator© 2011 – all rights reserved Third Party Third Party Sub-Contractor Third Party 4 4 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  5. 5. Demonstration Objectives Specify, test & validate a Diesel engine prototype responding to helicopter requirements Existing General Aviation engines: too small and/or too heavy  Identify & resolve major integration difficulties Requires exploration of full flight envelope (maturity TRL 6) Substantiate achievement of fuel &© 2011 – all rights reserved emission reduction targets The demonstrator H/C will be a prototype of the small single-engine EC120 which can most conveniently be modified for that purpose. 5 5 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  6. 6. Technical Challenges – Power Pack (1)  Weight of Power Pack incl. cooling system & ancillary equipments  Engine core strength & reliability  Fuel consumption & gas emission using standard Jet A1 fuel© 2011 – all rights reserved 6  Engine control compatible with helicopter control 6 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  7. 7. Technical Challenges - H/C integration (2)  Start, clutch operation in typical H/C flight domain  Engine noise exterior noise & cabin  Torque oscillation alleviation  Engine vibration© 2011 – all rights reserved 7 7 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  8. 8. Technical Challenges - H/C integration (3)  Pilot interface, pilotability, handling  Cooling system qualities efficiency esp. in hover  Aerodynamic drag© 2011 – all rights reserved 8 8 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  9. 9. Demonstration Plan 2008 2009 2010 2011 2012 2013 2014 2015 Preliminary studies, specifs Partnership Completed Engine Design Design of H/C proto mods CDR PDR Engine manufacturing Engine integration & bench tests© 2011 – all rights reserved FAI H/C mods manufacturing H/C integration & testing Ground Flight 9 9 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  10. 10. Demonstration Plan - Expected results (1) Engine Power Pack CO2 & fuel SFC <230 g/kW/h Weight Reliability (potential) < 0.8 kg/kW TBO>2000 hr© 2011 – all rights reserved Design to Cost 10 RC < turboshaft 10 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  11. 11. Demonstration - Expected results (2) Helicopter demonstrator integration (CS & beyond) Environmental impact -30% CO2 per operation© 2011 – all rights reserved Full flight Payload-Range envelope assessed explored 11 11 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011
  12. 12. Perspectives Strong market expectation for fuel efficient helicopters (EU & global)  Advanced Diesel technology mature in automotive sector  Adaptation to General Aviation in progress  Still significant technical challenges ahead for adaptation to vertical flight  Broader market for very high performance Diesel engine: General Aviation, UAVs, APUs.© 2011 – all rights reserved Helicopter industry & engine manufacturers agree to :  Conduct a complete demonstration by 2014 ;  Further develop & integrate Diesel techno on future light H/C 12 products. 12 Clean Sky –Round table “Future Green Rotorcraft », IPAS 23 Jun 2011

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