Abstract
Flame Stability and Emission results are presented for a jet shear layer primary zone design consisting of a 90/sup 0/ conical flame stabilizer with a central annular vaporizer fuel injection system feeding an array of air jets. The performance with kerosene and gas oil fuels is compared with previous work with propane. The influence of the primary zone residence time or Mach number is shown to be much more significant for liquid fuels than for propane. An acceptable combustion efficiency was only achieved at a Mach number of 0.03, corresponding to 60% of the combustion air in the primary zone, provided that the pressure loss was maintained as the Mach number was reduced by using a stabilizer of higher blockage. NO/sub x/ emissions with kerosene were compatible with those for propane, but for gas oil there was a significant increase in NO/sub x/.
Published Version
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