Work study catalytic converter during starting a cold engine

• Autorzy: Koliński K.

Identyfikatory

DOI

10.5604/12314005.1161724

• Języki publikacji: EN

Abstrakty

EN

The paper presents an analysis of the problems associated with the catalytic reduction of emissions in a diesel engine in cold start. The tests were performed at the station in the climate chamber at lowered ambient temperatures: -7, -15 and -20oC. 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 self-ignition 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 400oC at ambient temperature of -7oC, CO concentration can be reduced by 80...90% and the hydrocarbon concentration can be reduced by app. 70% on the average.

Słowa kluczowe

EN

combustion engine; engine start-up; catalytic reactor

• 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: 2015
• Tom: Vol. 22, No. 1
• Strony: 157--166
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Koliński K.

• Military University of Technology, Faculty of Mechanical Engineering 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, Poznan 2001.
• [4] Świątek, A., A study of catalytic converter operation in terms of its ecological parameters improvement. Wydawnictwo Politechniki Poznańskiej, Poznań 2005.