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The Performance of an Electrostatic Agglomerator as a Diesel Soot Emission Control Device
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1990 by SAE International in United States
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A major problem with many soot emission control devices is the fact that they quickly become loaded with soot which must be removed by a controlled burning (regeneration) process. The need for regeneration greatly complicates such diesel particle emission control devices. In this paper, an electrostatic agglomerator (ESA) which efficiently collects diesel particles but does not require regeneration is described. The ESA is an electrostatic precipitator which is designed to collect and subsequently reentrain diesel soot particles. The collection and reentrainment processes results in growth of particle diameter from roughly 0.2 μm to larger than 1.0 μm. The agglomerated particles are large enough to be collected by a relatively simple inertial device, e.g., a cyclone separator. The collected particle may be either recycled to the engine or disposed of by other means. Electrostatic collection is made easier by the fact that diesel particles are charged by the combustion process itself. This makes it unnecessary to employ a corona charging section. As a result relatively low voltages (3-5 kV) and currents (1-2 mA) may be employed. The paper describes the design and performance of a prototype electrostatic agglomerator fitted to a Caterpillar 3304 indirect-injection, naturally-aspirated diesel engine. Performance of the device is described in terms of its ability to shift the diameter of the particles upward from the sub-micron range into the super-micron range.
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CitationThimsen, D., Baumgard, K., Kotz, T., and Kittelson, D., "The Performance of an Electrostatic Agglomerator as a Diesel Soot Emission Control Device," SAE Technical Paper 900330, 1990, https://doi.org/10.4271/900330.
- Moon, K.C. “Charging of Diesel Particles,” University of Minnesota 1984
- Liu, B.Y.H. Kittelson D. B. Dolan D.F. Pui D.Y.H. “Methods of Reducing Particles Discharged by Combustion Means,” 1981
- Dolan, D.F. Kittelson D.B. Pui D.Y.H. “Diesel Exhaust Particle Size Distribution Measurement Techniques,” SAE paper No. 800187 1980
- Baumgard, K.J. Kittelson D.B. “The Influence of a Ceramic Particle Trap on the Size Distribution of Diesel Particles,” SAE Paper No. 850009 1985
- “Reduction of Diesel Particulate by Electrostatic Agglomeration, Inertial Collection, and Reburning,” Final Report, EPA Contract No. 69-02-4496 Hamilton Maurer International, Inc. Houston, TX/St. Paul, MN 1988
- Zeller, H.W. “Measurement of the Effects of a Fuel Additive on Diesel Soot Emissions,” Bureau of Mines Volume, IC-9141 Diesel in Underground Mines 1987
- Whitby, E.R. Whitby N.L DISTFIT - Program Manual 1988
- Kapadia, A. “Data Reduction Technique for Aerosol Sized Distribution Measuring Instruments,” University of Minnesota 1979
- Gibbs, R.R. Whitby Johnson R. “Observation of Particle Oxidation in Diesels: Prospect for Combustion Research and Particle Control,” SAE Paper No. 860291 1986