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Italian City Buses with Particulates Traps
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English
Abstract
From september 1988 a fleet test started in Italy on urban buses equipped with a single ceramic monolith filter plus a by-pass and Diesel fuel burners for regeneration. The operation of the particulate trap, during the normal bus running in the city, has been assessed in three different ways:
- 1.
Continuous control, by means of a data acquisition system purposely designed, of the main parameters affecting regeneration (i.e. time between consecutive regenerations, temperature in three selected zones in the filter during regeneration,filter loading);
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2.
Periodic control of smoke opacity of the bus measured, with and without the filter, under free acceleration and when bus is accelerating from 50 to 65 km/h on proving ground;
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3.
Particulate collection efficiency of the trap by using a dilution tunnel with the engine operated at the test bench.
Information carried out from the fleet tests and additional information deriving from laboratory results were used for the system improvement.
Authors
Topic
Citation
Balzotti, A., Cornetti, G., Pidello, F., Signer, M. et al., "Italian City Buses with Particulates Traps," SAE Technical Paper 900114, 1990, https://doi.org/10.4271/900114.Also In
References
- SAE Special Publications 1984 to 1989
- Hardenberg H. “Urban Bus Application of a Ceramic Fiber Coil Particulate Trap” SAE Paper 870011 SP-702
- Hardenberg H. Daudel H. Erdmannsdorfer H. “Experience in the Development of Ceramic Fiber Coil Traps” SAE Paper 870015 SP-702
- Hardenberg H. Daudel H. Erdmannsdorfer H. “Particulate Trap Regeneration Induced by Means of Oxidizing Agents Injected into the Exaust Gas” SAE Paper 870016 SP-702
- Cornetti G.M. Messori P.P. Operti C. “Development of a Ceramic Particulate Trap for Urban Buses” ASME Congress October 1988
- Signer M. Cornetti G.M. “Laboratory Results in Particulate Trap Technology” SAE Paper 890170 SP-775
- Pattas K.N. Stamatellos A.M. “The Effect of Exhaust Throttling on the Diesel Engine Operation Characteristics and Thermal Loading” SAE Paper 890399 SP-77
- Barris M.A. Rocklitz G.J. “Development of Automatic Trap Oxidizer Muffler Systems” SAE Paper 890400 SP-775
- Ha K. Lawson A. “Development of a Diesel Particulate Trap System for a 6V-92TA Engine” SAE Paper 890402 SP-775
- Hardemberg H.O. “Catalyst Activation - A New Means to Induce Particulate trap Regeneration” ASME Congress October 1989