Both of the fuel and combustion air streams were co-swirled to create a strong and stable flame.
The effects of cbanging the geometry of atomizer spin chamber and combustion air swirler on
flame characteristics were experimentally investigated. The diameter and depth of the spin
chamber also the hub diameter and vanes angle of the combustion air swkler were changed in turn.
The experimental runs were carried out witbin a horizontal water-cooled combustor tube of 32 cm
diameter and 150 cm length. Kerosene spray was issued at 12.5 bar with constant flow rate of 12.6
kghr keeping the airlfuel ratio constant at 19.
Gas temperature distributions, sectional average gas temperatures along the combustor, flame
stability limits and overall heat transfer to the combustor wall were determined for the different
operating runs.