Towards Lean Combustion

The mitigation of aviation emissions, in terms of their environmental impact, is a priority for both air quality (local impact) and the greenhouse effect (global impact). The main margin for progress is in the field of combustor technology. Lean combustion technology is the breakthrough that should enable high-level reductions in NOx emissions, both at airports and in cruise. In addition, lean combustion also assists the reduction of particulates. Injection systems are the most critical issue in achieving a satisfactory level of lean combustion, and are the focus of this project. The project aims to achieve sufficient maturity in lean combustion for the single annular combustor application. The objectives will be an 80% reduction in NOx emissions in relation to the CAEP2 regulation limit during the LTO (Landing and Take-Off) cycle, and low NOx emission indices at cruise speed (EINOx=5g/kg as a target). Other gaseous emissions and soot performance characteristics will also be precisely evaluated. In addition, significant progress is expected on non-intrusive measurements and numerical diagnostics.

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  • Supplemental Notes:
    • Research institutions undertaking the sub-projects: Turbomeca S.A., SNECMA, Office National d'Etudes et de Recherches Aérospatiales (ONERA), Centre National de la Recherche Scientifique (CNRS), Ecole Centrale de Nantes, Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS), ACIES Europe, Rolls-Royce Deutschland Ltd. & Co. KG, MTU Aero Engines GmbH, Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Universität Karlsruhe (Technische Hochschule), AVIO S.p.A; Università degli Studi di Genova; Università di Napoli "Frederico II", Università degli Studi di Roma "La Sapienza", Instytut Maszyn Przeplywowych im. Roberta Swewalskiego Polskiej Akademii Nauk, Fundación Empresa Universidad de Zaragoza, and Lunds Universitet.


  • English


  • Status: Active
  • Sponsor Organizations:

    Improving Environmental Impacts with Regard to Emissions and Noise

    6th RTD Framework Programme
    European Union
    Brussels,   Belgium 
  • Project Managers:

    Penanhoat, Olivier

  • Start Date: 20050301
  • Expected Completion Date: 0
  • Actual Completion Date: 20090228
  • Source Data: RiP Project 25427

Subject/Index Terms

Filing Info

  • Accession Number: 01461631
  • Record Type: Research project
  • Source Agency: Transport Research Knowledge Centre
  • Files: RIP
  • Created Date: Jan 3 2013 1:49PM