In collaboration with U.S. aircraft engine companies, NASA Glenn Research Center has contributed to the advancement of low emissions combustion systems. For the High Speed Research Program (HSR), a 90% reduction in nitrogen oxides (NOx) emissions (relative to the then-current state of the art) has been demonstrated in sector rig testing at General Electric Aircraft Engines (GEAE). For the Advanced Subsonic Technology Program (AST), a 50% reduction in NOx emissions relative to the 1996 International Civil Aviation Organization (ICAO) standards has been at demonstrated in sector rigs at both GEAE and Pratt & Whitney (P&W). During the Ultra Efficient Engine Technology Program (UEET), a 70% reduction in NOx emissions, relative to the 1996 ICAO standards, was achieved in sector rig testing at Glenn in the world class Advanced Subsonic Combustion Rig (ASCR) and at contractor facilities. Low NOx combustor development continues under the Fundamental Aeronautics Program. To achieve these reductions, experimental and analytical research has been conducted to advance the understanding of emissions formation in combustion processes. Lean direct injection (LDI) concept development uses advanced laser-based non-intrusive diagnostics and analytical work to complement the emissions measurements and to provide guidance for concept improvement. This paper describes emissions results from flametube tests of a 9- injection-point LDI fuel/air mixer tested at inlet pressures up to 5500 kPa. Sample results from CFD and laser diagnostics are also discussed.


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    Titel :

    High Pressure Low NOx Emissions Research: Recent Progress at NASA Glenn Research Center


    Beteiligte:
    Chi-Ming, Lee (Autor:in) / Tacina, Kathleen M. (Autor:in) / Wey, Changlie (Autor:in)

    Kongress:

    ISABE 2007


    Erscheinungsdatum :

    2007-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    AIAA-2007-1270 HIGH PRESSURE LOW NOX EMISSIONS RESEARCH: RECENT PROGRESS AT NASA GLENN RESEARCH CENTER

    Lee, C.-M. / Tacina, K.M. / Wey, C. et al. | British Library Conference Proceedings | 2007


    NASA Glenn Research Center

    M. Perez-Davis | NTIS | 2012


    NASA Glenn High Pressure Low NOx Emissions Research

    Tacina, Kathleen M. / Wey, Changlie | NTRS | 2008


    NASA Glenn Research Center

    Perez-Davis, Marla | NTRS | 2012


    NASA Glenn Research Center Overview

    Campbell, Donald J. | NTRS | 2003