The spray characteristics of standard and alternative aviation fuels generated by a hybrid pressure-swirl airblast atomizer were studied at conditions corresponding to near-lean blowout conditions: ambient gas pressure P vessel = 2.07    bar , fuel temperature T fuel = 322    K , and atomizing gas temperature T gas = 394    K . The candidate alternative fuels (C-1, C-5, C-7, and, C-8 synthetic blends) were compared to Jet-A (A-2). The drop size and drop velocity were measured using phase Doppler anemometry at three measurement planes downstream of the swirler exit. The representative diameters [ D 10 , D 32 , and the mass mean diameter (MMD)] were used to characterize the drop size. The drop velocity was characterized using the arithmetic mean and the root mean square. An increase in the swirler pressure drop ( Δ P / P ) showed a decrease in the mean drop size and an increase in the magnitude of the axial drop velocity. Comparing the different fuels generally showed an increase in D 10 for higher fuel viscosity. However, definitive trends in D 32 and the MMD were not observed, based on fuel physical properties such as viscosity, surface tension, or density. A variation of the fuel injection pressure Δ P Pilot showed no significant effect for both the standard and alternative fuels. The full cone angle (obtained using shadowgraph images) was found to not vary significantly with Δ P Pilot or Δ P / P .


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Nonreacting Spray Characteristics for Alternative Aviation Fuels at Near-Lean Blowout Conditions


    Beteiligte:
    Shin, Dongyun (Autor:in) / Bokhart, Andrew J. (Autor:in) / Rodrigues, Neil S. (Autor:in) / Sojka, Paul E. (Autor:in) / Gore, Jay P. (Autor:in) / Lucht, Robert P. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.05.2020




    Medientyp :

    Aufsatz (Konferenz) , Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Sustainable Aviation Fuels Approval Streamlining: Auxiliary Power Unit Lean Blowout Testing

    Peiffer, Erin E. / Heyne, Joshua S. / Colket, Meredith | AIAA | 2019


    Characteristic Timescales for Lean Blowout of Alternative Jet Fuels

    Peiffer, Erin E. / Heyne, Joshua S. / Colket, Meredith B. | AIAA | 2018



    NUMERICAL SIMULATION OF LEAN BLOWOUT OF ALTERNATIVE FUELS IN 7- ELEMENT LEAN DIRECT INJECTOR

    Endo, Makoto / Tacina, Kathleen M. / Hicks, Yolanda R. et al. | TIBKAT | 2021


    Numerical Simulation of Lean Blowout of Alternative Fuels in 7-element Lean Direct Injector

    Endo, Makoto / Tacina, Kathleen M. / Hicks, Yolanda R. et al. | AIAA | 2021