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

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    11 Citeringar (Scopus)

    Sammanfattning

    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.
    OriginalspråkOdefinierat/okänt
    Sidor (från-till)769–777
    Antal sidor9
    TidskriftCombustion and Flame
    Volym157
    Utgåva4
    DOI
    StatusPublicerad - 2010
    MoE-publikationstypA1 Tidskriftsartikel-refererad

    Nyckelord

    • Black liquor
    • LIF
    • Sodium
    • Surface temperature

    Citera det här