This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Aerodynamically Regenerated Diesel Particulate Trap Coupled to an Electric Soot Incinerator with Dual Wall-Flow Filters
Annotation ability available
Sector:
Language:
English
Abstract
The development of a soot incinerator with dual ceramic filters and an electric strip heater is discussed herein. The incinerator is designed to operate in series with a diesel particulate trap developed previously (1).1 The particulate trap consists of a primary ceramic monolith which serves as the filtering device. Once the primary monolith has collected enough soot from the exhaust flow to induce a substantial amount of back pressure to the engine, it is cleaned aerodynamically using short pulses of compressed air. The soot is then forced through a reed valve and into the incinerator chamber, where some of the particulates come in contact with an electric strip heater and burn. The regeneration air exits the incinerator through two secondary ceramic wall-flow rectangular filters, where any unburned particulates are retained. Filtered regeneration air is, thus, released to the atmosphere. In order to periodically clean both secondary filters, and expose the trapped soot particles again to the electric burner for further incineration, each secondary filter is subjected to aerodynamic cleaning in an alternating fashion. The incinerator system was designed to effectively burn the particulates, while maintaining flow-through characteristics for the regeneration air to achieve maximum cleaning of the main monolith.
Since additional compressed air is used to clean the two secondary filters, methods for minimizing the overall air consumption were investigated. To minimize release to the atmosphere of any CO emissions, generated during the combustion of soot, the effluent of the incinerator was channelled back to the intake of the engine. The complete system of the diesel particulate trap and the electric incinerator has been tested in the laboratory for its effectiveness to capture and destroy diesel soot emissions.
Topic
Citation
Caceres, J. and Levendis, Y., "An Aerodynamically Regenerated Diesel Particulate Trap Coupled to an Electric Soot Incinerator with Dual Wall-Flow Filters," SAE Technical Paper 950371, 1995, https://doi.org/10.4271/950371.Also In
References
- Kim. S. H. Levendis Y. A. “Design of a Diesel Particulate Trap-Incinerator with Simultaneous Filtration and Compressed Air Regeneration (CAR).” SAE paper 930407 1993
- Kittelson D. B. Pui D. Y. H. “Electrostatic Collection of Diesel Particles.” SAE paper 860009 1986
- Levendis Y. A. Panagiotou T. Taslim M. E. “Development of a Self-Cleaning Particle Trap for Diesel Engine Particulate Control.” SAE paper 900601 1990
- Levendis Y. A. McInerney K. Panagiotou T. “Evaluation of a Self-Cleaning Particulate Control System for Diesel Engines.” SAE paper 910333 1991
- Khalil N. Levendis Y. A. “Development of a New Diesel Particulate Control System with Wall-Flow Filters and Reverse Cleaning Regeneration.” SAE paper 920567 1992
- Mehta S. Levendis Y. A. Khalil N. “On-Road Testing of a Reverse Air-Flow Cleaning, Soot-Oxidizing Diesel Particulate Trap System.” SAE paper 930368 1993
- Mehta S. Oey F. Sumbung C. Levendis Y. “An Aerodynamically Regenerated Diesel Particulate Trap with a Flow-through Soot Incinerator Section.” SAE paper 940461 1993
- Pavlatos I. K. Levendis Y. A. “Recent Developments on the Northeastern University Rotating Self Cleaning Particulate Trap-Retention of PAC's and HC Emissions.” SAE paper 920568 1992
- Walton F. B. Hayward P. J. Wren D. J. “Controlled Energy Deposition in Diesel Particulate Filters During Regeneration by Means of Microwave Irradiation.” SAE paper 900327 1990
- Garner C. P. Dent J.C. “Development of a Microwave Diesel Particulate Trap Regeneration System.” SAE paper 905116 1990
- Garner C. P. Dent J.C. “Microwave Assisted Regeneration of Diesel Particulate Traps.” SAE paper 890174 1989
- Thimsen D. P. Baumgard K. J. Kotz T. J. “The Performance of an Electrostatic Agglomerator as a Diesel Soot Emission Control Device.” SAE paper 900330 1990
- Flagan Seinfeld Fundamentals of Air Pollution Engineering Prentice-Hall Publisher 1988 First
- Kojetin P. Janezich F. Sura L. Tuma D. “Production Experience of a Ceramic Wall-Flow Electrical Regeneration Diesel Particulate Trap.” SAE paper 930129 1993
- Kobashi K. Hayashi K. Aoki H. Kurazono K. Fujimoto M. “Regeneration Capability of Diesel Particulate Filter System using Electric Heater.” SAE paper 930365 1993
- Hayashi K. Ogura Y. Kobashi K. Sami H. Fikami A. “Regeneration Capability of Wall-Flow Monolith Diesel Particulate Filter with Electric Heater.” SAE paper 900603 1990
- Balzotti A. Cornetti G. M. Pidello F. Signer M. Scorsone V. “Italian City Buses with Particulates Traps.” SAE Paper 900114 1990
- Kitagawa J. Hitjikata T. Yamada S. “Electric Heating Regeneration of Large Wall-Flow Type DPF.” SAE Paper 910136 1991