AbstractSingle-droplet experiments have been conducted under a zero-gravity condition in a freely falling chamber as a fundamental step of study on the spray combustion of hydrocarbon-water emulsified fuels. Such a behavior as the secondary micro-atomization was observed by taking schlieren photographs with a 35-mm movie camera installed on the falling assembly. Under zero gravity the emulsion droplet initiates steam discharge and puffing—that is, a mild atomization—at a time from ignition, but it does not lead to such a micro-explosion or disruption as is experienced under normal gravity. The apparent burning rate constant under zero gravity is about 30% smaller than that under normal gravity. These facts suggest that the internal convection in emulsion droplets plays an important role in causing the micro-explosion.


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    Titel :

    Combustion of emulsified fuel droplets under microgravity


    Beteiligte:
    Okajima, S. (Autor:in) / Kanno, H. (Autor:in) / Kumagai, S. (Autor:in)

    Erschienen in:

    Acta Astronautica ; 12 , 7-8 ; 555-563


    Erscheinungsdatum :

    1985-02-14


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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