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A New Theoretical Approach of Designing Cyclone Separator for Controlling Diesel Soot Particulate Emission
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 01, 2006 by SAE International in United States
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The reduction of particulate emissions from diesel engines is one of the most challenging problems associated with the exhaust air pollution control. Particulate emissions can be controlled by the adjustments of the combustion parameters of a diesel engine but these measures result in increased emissions of oxides of Nitrogen.Diesel particulate Filters (DPF) hold out the prospects of substantially reducing regulated particulate emissions but the question of the reliable regeneration of filters still remains a difficult hurdle. Many of the solutions proposed to date suffer from high engineering complexity, cost, thermal cracking, increased backpressure which in turn deteriorates diesel engine combustion performance. This paper presents an improved computer aided analytical approach for controlling Diesel soot particulate emission by Cyclone separator. Reduction of soot particles in the exhaust in turn reduces the Diesel Particulate Matter formation. Cyclone Separator with low initial cost, no thermal failure, simple construction produces low back pressure and reasonably high particulate collection efficiencies with reduced regeneration problems. Earlier studies of Cyclone as a two phase flow separator concentrates on finding of the particulate collection efficiencies as a whole of the Cyclone system without considering the cylindrical and conical components for overall grade efficiency. Almost no studies are available with analytical modeling of Cyclone separator as a Diesel soot particulate emission arrester In this work a new approach is proposed for calculating the overall grade efficiencies for Diesel particulate emission considering the outer vortex in the cylindrical part, outer vortex in conical part and inner vortex of Cyclone separator. Angle of turn by the exhaust gases for outer vortex in the cylindrical part, outer vortex in conical part, inner vortex and overall angle of turn in outer vortex are also proposed. Modified cut size diameter model is also presented in this study. The result shows good agreements with existing cyclone and DPF flow characteristics.
CitationMukhopadhyay, N., Chakrabarti, R., and Bose, P., "A New Theoretical Approach of Designing Cyclone Separator for Controlling Diesel Soot Particulate Emission," SAE Technical Paper 2006-01-1978, 2006, https://doi.org/10.4271/2006-01-1978.
- Lapple, C.E.,“Processes Use Many Collection Types.”, Chemical Engineer, vol.58, no. 5, pp. 144-151, May 1951.
- Caplan, k. J.: Source Control by Centrifugal Force and Gravity, in Stern A.C., ed., “Air Pollution,” vol. 3, chap. 43, pp. 366-377, Academic Press, Inc., New York, 1968.
- Alexander, R. Mck.: Fundamentals of Cyclone Design and Operation, Proc. Aust.. Inst. Min. Metall., vol. 152/3, pp. 202-228, 1949.
- ter Linden, A.J.(1949), “Investigations into cyclone dust collectors”, Proc. Inst. Mech. Eng., No.160, pp. 233 - 240.
- Stairmand, C.J. (1951), “The design and performance of cyclone separators”, Trans. Inst.chem. Eng., 29, pp. 356.
- Shepherd, C.B. and Lapple, C.E.(1939), “Flow pattern and pressure drop in cyclone dust collectors” Ind. and Eng. Chemistry, 31(8), p. 972-984.
- Dietz, P.W.(1981),“Collection efficiency of cyclone separators”, AIChE Journal, 27(6),888.
- Leith, D and Licht, W. (1972), “The collection efficiency of cylone type particle collectors - a new theoretical approach”, AIChE Symp. Ser,68(126),p.196.
- Ogawa, A., Mechanical separation process and flow patterns of cyclone dust collectors. American Society of Mechanical Engineers, 50, pp. 97(1997).
- First, M.W. Fundamental factors in the design of cyclone dust collectors. Doctoral Thesis, Harvard University, Cambridge, MA, 1950.
- Boysan, F., Ayers, W.H. and Swithenbank, J.(1982),“A fundamental mathematical modeling approach to cyclone design”, Trans. Inst.Chem.Engrs..,60,pp.222-230.
- Ma, Guangda. 1983. Air pollution control engineering. China Environmental Science Press.
- Leith, D. and Metha D., 1973, Cyclone performance and Design. Atmospheric Environ. 7:527-549(1973).
- Barth W. 1956. Design and layout of the cyclone separator on the basis of new investigations. Brenn. Warme Kraft 8: 1-9.
- Suresh, A., Khan, A., Johnson, J.H. “An experimental and modeling study of Cordierite Traps - pressure drop and permeability of clean and particulate loaded traps”, SAE 2000 -01- 0476, pp. 245 - 264, 2000.
- Muntean George G., “A theoretical model for the correlation of Smoke number to dry particulate concentration in diesel exhaust”, SAE 1999 - 01 - 0515, pp. 316 - 322, 1999.
- Collier Anthony R., Jemma Carl A., et.al., “Sampling and analysis of vapour - phase and particulate-bound PAH from vehicle exhaust”, SAE 982727, pp. 2273 - 2287, 1998.
- Graze, Russell R. Jr., “Development of a miniaturized, dilution based Diesel Engine particulate sampling system for gravimetric measurement of particulates”, SAE 931190, pp. 1634 - 1645, 1993.
- Dementhon J. B. and Martin B., “Influence of various traps on particulate size distribution”, SAE 972999, pp. 1604 - 1622. 1997.
- Bach E., Zikoridse G., et.al., “Combination of different regeneration methods for diesel particulate traps”, SAE 980541, pp. 771 - 780. 1998.
- Zikoridse G., Velji A., et. al., “Particulate trap technology for light duty vehicles with a new regeneration strategy”, SAE 2000 -01 - 1924, pp. 1582 - 1593, 2000.
- Konstandopoulos A. G., Skaperdas E., et.al., “Optimized filter design and selection criteria for continuously regenerating diesel particulate traps”, SAE 1999 -01 -0468, pp. 279 - 288.1999.
- lepperhoff G., Luders H., et. al.,“Quasi - Continuous particle trap regeneration by Cerium - Additives”, SAE 950369, pp. 689 - 700, 1995.
- Qey F., Mehta S., et. al., “Diesel vehicle application of an aerodynamically regenerated trap and EGR system”, SAE 950370, pp.701 - 714, 1995.
- MayerA., Egli H., et. al., “Particle size distribution downstream traps of different design”, SAE 950373, pp. 732 - 742, 1995.
- Fanick E. Robert, Whitney K.A., et. al., “Particulate Characterization using five fuels”, SAE 961089, pp. 647 - 655, 1996.
- Horiuchi M., Saito K., et. al., “The effects of flow - through type oxidation catalysts on the particulate reduction of 1990's Diesel Engines”, SAE 900600, pp. 1268 - 1278, 1990.
- Nakakita K., Nagaoka M., et. al., “Photographic and three dimensional numerical studies of Diesel soot formation process”, SAE 902081, pp. 2132 - 2144, 1990.
- Khalil N., Levendis Y. A.,“Development of a new Diesel particulate control system with wall - flow filters and reverse cleaning regeneration”, SAE 920567, pp. 985 - 999, 1992.
- Baumgard K. J. and Johnson J. H., “The effect of low sulfur fuel and a ceramic particle filter on Diesel exhaust particle size distributions”, SAE 920566, pp. 691 - 699, 1992.
- Takesa K., Uchiyama T., et. al.,“Development of particulate trap system with cross flow ceramic filter and reverse cleaning regeneration”, SAE 910326, pp. 428 - 439, 1991.
- Garde, S., Tilak, S., Subrahmanyam, J. P., Gajendra Babu, M.K. “Particulate Control of Diesel Engine Exhaust using a Low Cost Cyclonic Separator”, XI National Conference Proceedings on I.C.Engine & Combustion, December 11-15, 1989, IIT Madras, India.
- Crawford, Martin, Air Pollution Control Theory. McGraw Hill International, New York, 1976, Ch.7, pp.259 - 286.
- Davis,M.L.; Cornwell,D.A “Introduction to Environmental Engineering” McGraw Hill International, Singapore, 1998, Ch. 6, 527 - 528.
- Heywood, J. B. “Internal Combustion Engine Fundamental”, McGraw Hill International, New York, 1988.
- Wang L., ParnellC.B., et. al., “Analysis of Cyclone Collection efficiency”, ASAE annual International meeting presentation, paper no. 034114, Las Vegas, Nevada, USA, 27 - 30 July, 2003.
- Arcoumanis C., Megaritis A., “Real - Time measurement of particulate emissions in a Turbocharged DI Diesel Engine”, SAE 922390, pp. 1966 - 1976, 1992.
- Salvat O., Marez P., et.al. “ Passenger car serial application of a particulate filter system on a common rail Direct Injection Diesel Engine”, SAE 2000 - 01 - 0473, pp. 227 -239,2000.
- Mothes, H. and Loffer F., “Prediction of particle removal in cyclone separators”, Int. Chem. Eng. 28(2), pp. 231 - 240,1988.
- Cooper, C.D., AlleyF.C.., “Air pollution control: A design approach.”, Waveland Press, Inc., Prospect Heights, IL, Illinois, 1994.
- Iozia,D.L., Leith D.., “The Logistic equation and cyclone fractional efficiency.”, Aerosol Science and Techonology. 13(1).1990.
- Swift,P., “Dust contol in industry.”, Steam Heating Engineering. 38.1969.
- Koch,W.H. and Licht,W., “New design approach boosts cyclone efficiency.”, November 7,1977, Chem. Eng., pp 80 - 88.
- Wang, L., Parnell C.B., et. al., “A study of Fractional Efficiency curves.”, Agricultural Engineering International: the CIGR Journal of Scientific Research and Development. Manuscript BC 02 002. Vol. IV.June,2002.
- Wheeldon, J.L., Burnard, G.K.,“Performance of Cyclones in the off - Gas path of a Pressurised Fluidised Bed Combustor”, Filtration & Separation, pp. 178 - 187, May/June1987.
- Bloom Richard.,“The Development of Fiber Wound Diesel Particulate Filter Cartridges”, SAE 950152, pp. 373 - 382.1995.
- Luders, Hartmut.,et.al., “Diesel Exhaust Treatment - New approaches to Ultra Low Emission Diesel Vehicles”, SAE 1999 - 01 - 0108, pp. 18 -26.1999.
- Hunt,A.J.,et.al., “Diesel Exhaust Particle Characterization by Polarized Light Scattering”, SAE 982629,pp. 1843 - 1850.
- Cutler,W.A.,et.al., “A New High Temperature Ceramic Material for Diesel Particulate Filter Applications”, SAE 2000 - 01-2844, pp. 2508 - 2518.