Turbine Engine Particulate Emission Characterization.
Final rept. 10 Jun 78-31 Dec 79,
IIT RESEARCH INST CHICAGO IL
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Particulate emissions from the TF-30, JT8D, and JT9D aircraft turbine engines were characterized for mass emission rate, particle size distribution, particle shape, and elemental composition as a function of engine type, fuel type, and power setting. Samples were collected from the exhaust plane of the engines with a sampling system developed under the contract. Two fuels were examined, Jet A and Pearl Kerosene. At idle power the TF-30 emitted 3.13 grams of particulate matter per kg of fuel consumed the JT8D engine averaged 0.79 gkg no JT9D engine point was obtained. At takeoff power the TF-30 emitted 6.90 gkg the JT8D, 0.59 gkg and the JT9D, 0.38 gkg. Geometric mean particle sizes ranged from 0.043 micron to 0.097 micron with particle size related to power level. Pearl Kerosene generally gave lower emissions and smaller particles than Jet A fuel. No elements were detected and it is assumed the particles are essentially carbon. Particle shape was difficult to quantify but the trend is for particle structure to be more complex or agglomerated at the higher power levels. Author
- Jet and Gas Turbine Engines
- Air Pollution and Control