Simultaneous measurement of the surface temperature and the release of atomic sodium from a burning black liquor droplet

WL Saw, GJ Nathan, PJ Ashman, ZT Alwahabi, Mikko Hupa

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    11 Sitaatiot (Scopus)

    Abstrakti

    Simultaneous measurement of the concentration of released atomic sodium, swelling, surface and internal temperature of a burning black liquor droplet under a fuel lean and rich condition has been demonstrated. Two-dimensional two-colour optical pyrometry was employed to determine the distribution of surface temperature and swelling of a burning black liquor droplet while planar laser-induced fluorescence (PLIF) was used to assess the temporal release of atomic sodium. The key findings of these studies are: (i) the concentration of atomic sodium released during the drying and devolatilisation stages was found to be correlated with the external surface area; and (ii) the insignificant presence of atomic sodium during the chat consumption stage shows that sodium release is suppressed by the lower temperature and by the high CO(2) content in and around the particle.
    AlkuperäiskieliEi tiedossa
    Sivut769–777
    Sivumäärä9
    JulkaisuCombustion and Flame
    Vuosikerta157
    Numero4
    DOI - pysyväislinkit
    TilaJulkaistu - 2010
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

    • Black liquor
    • LIF
    • Sodium
    • Surface temperature

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