37th Joint Propulsion Conference and Exhibit · 2001 · 15 citations · 1 references
EngineeringChemical EngineeringMechanical EngineeringAir PollutionCombustionInternal Combustion EnginesCombustion AnalysisCombustion In EnginesCombustion ProcessesFuel CharacteristicsGas Turbine CombustionSoot FormationAdditivesCombustorsFine Particle FormationFuel AdditivesOperating ConditionsParticle Size ReductionSoot Particle Size DistributionUltrafine Particle Formation
Soot participates from the exhaust of a singlenozzle-rig combustor burning JP-8 and JP-8 with three different fuel additives have been collected and analyzed using a variety of techniques. Two additives showed statistically insignificant differences relative to the results when burning unaltered JP-8. However, the estimated mass of particulates produced when burning JP-8+100 are reduced by 60 70% relative to that produced with unaltered JP-8. Number density, mean diameter, and smoke number showed reductions as well. Despite these encouraging results, the test needs to be reproduced over a wide range of conditions, as results may depend on burner type and operating conditions. Furthermore these results were not obtained at full power conditions and therefore the observed particle reduction may not be representative of high power conditions. In addition, accurate, reproducible measurements are difficult to obtain and the factor-of-two difference between the JP-8 and JP-8+100 results may be partially attributable to uncertainties of the experiment.
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