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The Influence of a Fibrous Diesel Particulate Trap on the Size Distribution of Emitted Particles
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Abstract
Particle mass concentrations and size distributions have been measured upstream and downstream of a ceramic-coated metal fiber filter. The filter has been used to process the exhaust of a 1.5 liter light-duty indirect injection diesel engine. At light filter loadings, the collection efficiency was typically found to range from 50 to 60%. As the trap was loaded, the efficiency slowly increasesd to a maximum value between 70-80% and then slowly declined. At the same time, the pressure drop across this filter continuously increased. The trap was periodicaly regenerated to prevent excessive pressure drop. When lightly loaded, the trap was found to reduce the particle concentration without having a significant impact on the size distribution. However, a heavily loaded trap significantly shifted the particle size distribution upward. Under some conditions, the trap actually generated coarse, greater than 1.0 μm diameter, particles. The trap thus acts as a particle agglomerator. This behavior is explained in terms of collection, surface agglomerataion, and subsequent reentrainment of the agglomerated material.
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Fang, C. and Kittelson, D., "The Influence of a Fibrous Diesel Particulate Trap on the Size Distribution of Emitted Particles," SAE Technical Paper 840362, 1984, https://doi.org/10.4271/840362.Also In
References
- Kageyama Koji Kinehara Nobuaki “Characterization of Particulate Emission from Swirl Chamber Type Light-Duty Diesel Engine as a Function of Engine Parameters,” SAE Paper 820181 1982
- Vuk C.T. Jones M.A. Johnson J.H. “The Measurement and Analysis of The Physical Character of Diesel Particulate Emissions,” SAE Paper 760131 1976
- Kittelson D.B. Dolan D.F. “Diesel Exhaust Aerosol,” ACS/CSJ Chemical Congress Honolulu, Hawaii April, 1979
- Lippman M. “Size-Selective Sampling for Inhalation Hazard Evaluations” Fine Particle, Aerosol Generation, Measurement, Sampling and Analysis Liu B.Y.H. New York Academic Press 1976 287 310
- Scherrer H.C. “Optical Properties of Diesel Exhaust Aerosol,” MS Thesis, Mechanical Engineering Department, University of Minnesota 1982
- “Diesel Technology-Report of the Technology Panel Diesel Impacts Study Committee,” National Academy of Science Washington, D.C. 1980
- Matsui Y. Kamimoto T. Matsuoka S. “Formation and Oxidation Processes of Soot Particulates in a D.I. Diesel Engine-An Experimental Study via the Two-Color Method,” SAE Paper 820464 1982
- Springer K.J. Stahman R.C. “Removal of Exhaust Particulate from a Mercedes 300D Diesel Car,” SAE Paper 770716 1977
- Oh S.H. MacConald J.S. Vaneman G.L. Hegedus L.L. “Mathematical Modeling of Fibrous Filters for Diesel Particulates-Theory and Experiment,” SAE Paper 810113 1981
- MacDonald J.S. Vaneman G.L. “Experimental Evaluation of Fibrous Filter for Trapping Diesel-Exhaust Particulates,” SAE Paper 810956 1981
- Wade W.R. White J.E. Florek J.J. “Diesel Particualte Trap Regeneration Technique,” SAE Paper 810118 1981
- McMahon M.A. Smolon W.J. Desousa D.J. “The Effect of an Alumina-Coated Metal Mesh Filter on the Mutagenic Activity of Diesel Particulate Emissions,” SAE Paper 840363? 1984
- MacMahon M.A. Faist C.H. Virk K.S. Tierney W.T. “Alumina Coated Metal Wool as a Particulate Filter for Diesel Powered Vehicles,” SAE Paper 820183 1982
- Verrant J.A. Kittelson D.B. “Sampling and Physical Characterization of Diesel Exhaust Aerosol,” SAE Paper 770720 1977
- Kittelson D.B. Dolan D.F. Verrant J.A. “Investigation of a Diesel Exhaust Aerosol” SAE Paper 780109 1978
- Marple V. Willeke K. “Inertial Impactors: Theory, Design and Use,” Symposium on Fine Particles Minneapolis, Minnesota 1975
- Kittelson D.B. Fang C.P. “Performance of the Texaco Particle Trap,” Final report submitted to Texaco, Inc. University of Minnesota 1983
- Fang C.P. “An Examination of the Performance of a Diesel Exhaust Particle Trap,” MS Thesis, University of Minnesota 1983
- Liu B.Y.H. Pui D.Y.H. Kapadia A. “Electrical Aerosol Analyzer: History, Principle and Data Reduction,” Aerosol Measurement 341 383 University Press of Florida Gainsville, FL 1979
- Kittelson D.B. Dolan D.F. “Laboratory and Field Studies of Aerosols Produced by Diesel-Powered Vehicles,” Mechanical Engineering Department, University of Minnesota 1979
- Groblicki P.J. Begeman C.R. “Particle Size Variation in Diesel Car Exhaust,” SAE Paper 790421 1979
- Dolan D.F. “Experimental and Theoretical Investigation of Diesel Exhaust Particulate Matter,” Ph.D. Thesis, University of Minnesota 1977
- Emi H. Okuyama K. “The Effect of Neighbouring Fibers on the Single Fiber Inertial-Interception Efficiency of Aerosol,” J. of Chemical Engineering of Japan 10 2 1977 148 153
- Billings C.E. “Effects of Particle Accumulation in Aerosol Filtration,” Report. W.M. Keck Lab. of Envir. Health, Calif. Inst. Technol., Pasadena, U.S.A 1966
- Payatakes A.C. Tien Chi “Particle Deposition in Fibrous Media with Dendritic Pattern: A Preliminary Model,” J. Aerosol Sci. 7 1976 85 100
- Payatakes A.C. “Model of Transient Aerosol Particle Deposition in Fibrous Media with Dendritic Pattern,” AlChE Journal 23 2 1977 192 202
- Payatakes A.C. Gradon L. “Dendritic Deposition of Aerosols by Convective Brownian Diffusion for Small, Intermediate and High Particle Knudsen Numbers,” AlChE Journal 26 3 1976 443 454
- Wang C.S. Barot D.T. Tien Chi “Accumulation of Solid Particles on Single Fibers Exposed to Aerosol Flows,” AlChE Journal 26 2 1980 289 292
- Emi H. Kanaoka C. Myojo T. “Simulation of the Growing Process of a Particle Dendrite and Evaluation of a Single Fiber Collection Efficiency with Dust Load,” J. Aerosol Sci 11 1979 377 389
- Emi H. “Filtration of Aerosol through Fibrous Packed Bed with Dust Loading,” J. of Chemical Engineering of Japan 33 10 1969 103 110