Researches of noxious components of exhaust gases conversion occurs in catalytic converter during a start-up of compression ignition engine in lowered temperature

• Autorzy: Koliński K.
• Języki publikacji: EN

Abstrakty

EN

This article presents the results of the tests of catalytic reduction of carbon oxide and hydrocarbon emission during the self-ignition engine start-up. The tests were performed at the station in the climate chamber at lowered ambient temperatures: –7 ,-15 and –20 centigrade. A heated three-function platinum-palladium catalytic reactor with a metal monolith was used in the tests. The test methodology included a measurement of toxic fume concentraction upstream and downstream the catalytic reactor at simultaneous measurement of the start-up parameters and measurement of temperatures in selected engine and catalytic reactor locations. A period of the cold engine start-up is characterized by a relatively high carbon oxide and hydrocarbon emission. The level of that emissions increases as the ambient temperature gets lower. As a result of the tests the influence of heating up the reactor on its operation during the selfignition engine start-up was identified.Carbon oxide and hydrocarbon emission during the start-up period can be reduced by initial heating up the catalytic reactor before the start-up by means of an electric heater. When heating up the reactor surface up to 400 centigrade at ambient temperature of –7 centigrade, CO concentration can be reduced by 80...90 per cent and the hydrocarbon concentration can be reduced by app. 70 per cent on the average.

Słowa kluczowe

EN

engine start-up; catalytic reactor; testing station; carbon; hydrocarbon

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 1
• Strony: 253--262
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Koliński K.

• Military University of Technology in Warsaw, Department of Mechanical Engineering Institute of Motor Vehicles and Transportation Gen. S. Kaliskiego Street 2, 00-908 Warsaw, Poland tel./fax:[phone],

Bibliografia

• [1] Brzeżański, M. D., Toxic fume emission at the spark-ignition engine heating stage using a heat accumulator, Monografia 326. Politechnika Krakowska, Kraków 2006.
• [2] Kruczyński, S., Three-functional catalytic reactors. Instytut Technologii Eksploatacji, Warszawa – Radom 2004.
• [3] Bielaczyc, P., Merkisz, J., Pielacha, J., Thermal state of combustion engine and toxic compound emission, Wydawnictwo Politechniki Poznańskiej, Poznań 2001.
• [4] Rokosch, U., Vehicle fume treatment systems and on-board diagnostic systems, WKŁ, Warszawa 2007.