Dependence of the toxic components exhaust emission from the car engine starting temperature

• Autorzy: Kneba Z.
• Języki publikacji: EN

Abstrakty

EN

Toxic ingredients at cold start rise dramatically comparing to hot start. Car operation in urban area is characterized by short rides and different time stops. Engine cooling effect of change in both the combustion conditions, the preparation of combustible mixture and the change in engine control algorithm is presented. The aim of this study was to increase the experimental finding toxins in exhaust emissions when cold and warm start the engine. Measurements were conducted after natural cooled vehicle engine when parked car. Graphs of toxic emissions especially CO and HC at different temperatures start-up are presented. Work is aimed at designing algorithms for control of a preheating before and during the start-up. The significant impact of oxygen sensor delay time was proved experimentally. The biggest impact on reducing the toxic emissions in the exhaust when starting the engine is not warmed-up delay switching to the oxygen concentration sensor in the exhaust. This delay is caused by warm-up the sensor to a temperature of about 250 °C. To determine whether this delay is very short which would undermine the sense of indicating the effect of the heating fluid to the emission of toxins on the voltage sensor measured oxygen concentration after cold start. However, not only sensor is responsible for very high cold start toxic emissions. Equally important is the thermal state ofthe engine. The big increase in toxic gases emissions is especially in low range temperatures of engine parts and fluids.

Słowa kluczowe

EN

CO and HC emission; engine cold start

• 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: 2010
• Tom: Vol. 17, No. 2
• Strony: 203--208
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Kneba Z.

• Gdańsk University of Technology Department of Mechanical Engineering Narutowicza Street 11/12, 80-233 Gdańsk, Poland tel: [phone], fax: [phone],

Bibliografia

• [1] Beichtbuchner, A., Jauk, T., Unterguggenberger, P., Wimmer, A., Eder, A., Richter, R., Winter, G., Vorausberechnungdes termischen Verhaltens und des Kraftstoffverbrauchs im Motorwarmlauf, Wärmemanagement der Kraftfahrzeuges VI, Expertverlag, pp. 281-294, 2008.
• [2] Bielaczyc, P., Merkisz, J., Pielecha, J., Stan cieplny silnika spalinowego a emisja związków szkodliwych, Wyd. Politechniki Poznańskiej, Poznań 2001.
• [3] Bielaczyc, P., Merkisz, J., Sczczotka, A., An investigation of cold start and warm-ups phases with a SI engine for meeting new European emissions regulations, Archiwum Motoryzacji, Nr 1/2, pp. 67-84, 1999.