This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Particle Size Distribution Downstream Traps of Different Design
Annotation ability available
Sector:
Language:
English
Abstract
High levels of particulate emissions from Diesel engines, in tunnel construction sites, force the aftertreatment of exhaust gases with particulate traps. Sub-micron particulates are suspected to be carcinogenic. Hence, the size distribution of particulates was compared for different particulate trap systems. The two extreme types are the ceramic monolith surface filter and the typical deep-bed filter of knitted fiber. These two types have distinctly different properties. The gravimetric evaluation of both systems show comparable efficiencies around 90%. If, instead, the particle count is evaluated: the efficiency of the surface filter drops below 70%, whereas that of the deep-bed filter increases. The spectral analysis of distinct solid particulates shows that the efficiency of the surface filter deteriorates for particles smaller than 100 nm. The toxicological consequences are disquieting.
Recommended Content
| Technical Paper | Trapping Efficiency Depending on Particulate Size |
| Technical Paper | Influence of Various Diesel Traps on Particulate Size Distribution |
Authors
Citation
Mayer, A., Egli, H., Burtscher, H., Czerwinski, J. et al., "Particle Size Distribution Downstream Traps of Different Design," SAE Technical Paper 950373, 1995, https://doi.org/10.4271/950373.Also In
References
- Egli H. Dezember
- November 1994
- 13 5 1993
- Heinrich P.D. Fraunhofer-Institut Hannover 22 4 94
- Pepelko William E. Chen Chao Quantitative Assessment of Cancer Risk from Exposure to Diesel Engine Emissions US Environmental Protection Agency, Regulatory Toxicology and Pharmacology
- Depositions- und Retentionsmodell für die interne Dosimetrie des menschlichen Respirationstraktes Health Physics 12 1966 173
- Mayer A. Buck A. Knitted Ceramic Fibers - A New Concept for Particulate Traps SAE 920146
- Mayer A. Buck A. Bressler H. The Knitted Particulate Trap: Field Experience and Development Progress SAE 930362
- Mayer A. Buck A. et al. Pre-Turbo Application of the Knitted Fiber Diesel Particulate Trap SAE 940459
- Baumgard K.J. Kittelson D.B. The Influence of a Ceramic Particle Trap on the Size Distribution of Diesel Particles SAE 850009
- Fang C.P. Kittelson D.B. The Influence of a Fibrous Diesel Particulate Trap on the Size Distribution of Emitted Particles SAE 840362
- Size Specific Total Particulate Emission Factors for Mobile Sources Final Report US Environmental Protection Agency August 1985
- Johnson J.H. et al. A Review of Diesel Particulate Control Technology and Emissions Effects - 1992 Horning Memorial Award Lecture SAE 940233
- Burtscher H. Zürich 20 11 1989
- Steiner D. Burtscher H. Studies on the Dynamics of Adsorption and Desorption from Combustion Particles by Temperature Dependent Measurement of Size, Mass and Photoelectric Yield Water, Air and Soil Pollution 68 1993
- Mayer A. Mai 1994
- Gratz L.D. et al. The Effekt of a Ceramic Particulate Trap on the Particulate and Vapor Phase Emissions of a Heavy-Duty Diesel Engine SAE 910609
- Steiner D. Burtscher H.K. Desorption of Perylene from Combustion, NaCl, and Carbon Partcles Laboratory for Solid State Physics, ETH Zürich, Environmental Science and Technology 28 1994
- Tree Dale R. Foster D.E. Optical Measurements of Soot Particle Size, Number Density, and Temperature in a Direct Injection Diesel Engine as a Function of Speed and Load SAE 940270
- Czerwinski J. Performance of HD-DI-Diesel Engine with Addition of Ethanol and Rapeseed Oil SAE 940545