The effect of exhaust gas recirculation on the process of combustion in the self-ignition engine

• Autorzy: Ambrozik T. , Kosno M.

Identyfikatory

DOI

10.5604/12314005.1133426

• Języki publikacji: EN

Abstrakty

EN

The paper compares the basic parameters of the process of combustion in the Fiat MultUet 1.3 SDE 90 KM with and without an exhaust gas recirculation system, running according to load characteristics with the following engine crankshaft rotational speeds: n=l200 ipm, 1750 rpm and 3000 rpm. During testing, the engine was supplied with commercial diesel oil. The tested engine was provided with external exhaust gas recirculation consisting in supplying a specific amount of exhaust gas back to the cylinder via an EGR electric solenoid valve. The exhaust gas delivered to the cylinder was cooled. Exhaust gas is composed of inert gases that do not take part in the combustion process. This causes, above all, a lower rate of pressure increase in the cylinder and a lower heat release rate. Thanks to exhaust gas recirculation, lower maximal temperatures prevail in the cylinder, and the engine's operation is "softer." During experimental testing, the variation of cylinder pressure and chamber pressure, the injector operation control current magnitude, effective power, torque and the hourly fuel consumption, as well as the exhaust gas recirculation rate. Actual indicator diagrams plotted were used for determining the heat release characteristics, based on which the percentage fractions of the burned out fuel charge injected during one engine running cycle namely 5, 10, 50 and 90% fractions were determined. In addition, the indicator indices were determined. The paper has demonstrated the effect of exhaust gas recirculation on the processes occurring inside the cylinder in the self ignition internal combustion engine.

Słowa kluczowe

EN

exhaust gas recirculation (EGR); diesel engine; start of combustion; nitrogen of oxides

• 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: 2014
• Tom: Vol. 21, No. 2
• Strony: 7--14
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Ambrozik T.

• Kielce University of Technology Tysiąclecia Państwa Polskiego Av. 7, 25-314 Kielce tel.: [phone]

autor

Kosno M.

• TSC Sp. z o. o. Krakowska Street 62, 25-701 Kielce

Bibliografia

• [1] Ambrozik, A., Ambrozik, T., Jakóbiec, J., Łagowski, P., Relationship between fuel spray parameters and heat release characteristics in self-ignition engine, Seria monograficzna Zespołu Systemów Eksploatacji PAN, Problems of maintenance of sustainable Technological Systems, Wydawnictwo Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne, pp. 7-17, Warszawa 2010.
• [2] Ambrozik, A., Analiza cykli pracy czterosuwowych silników spalinowych, Politechnika Świętokrzyska, Kielce 2010.
• [3] Ambrozik, T., Łagowski, P., Wielkości i parametry diagnostyczne procesu spalania w silniku o zapłonie samoczynnym, Zeszyty Naukowe Instytutu Pojazdów, Nr 1(73), pp. 5-15, 2009.
• [4] Ambrozik, T., Internal combustion engine, on-line: http://wmibm-moodle.tu.kielce.pl. Politechnika Świętokrzyska, Kielce 2013.
• [5] Ambrozik, T., Wpływ recyrkulacji spalin na stężenia spalin w silniku FIAT MultUet 1.3. Logistyka 4, 2014.
• [6] Deepak, Agarwal, Shrawan, Kumar, Singh, Avinash, Kumar, Agarwal, Effect of Exhaust Gas Recirculation (EGR) on performance, emissions, deposits and durability of a constant speed compression ignition engine, Applied Energy 88 , 2900-2907, 2011.
• [7] Hibernik, A., Samec, N., Effect of exhaust gas recirculation on diesel combustion, Journal of KONES Internal Combustion Engines, Vol. 11, No. 1-2, pp. 223-231, 2004.
• [8] Lejda, K., An influence of exhaust gas recirculation on NOx and other toxic components emission in diesel engines, TEKA Komisji Mot. Energ. Roln., pp. 128-137, 2006.
• [9] Merkisz, J., Pielecha, J., Radzimirski, S., Emisja zanieczyszczeń motoryzacyjnych w świetle nowych przepisów Unii Europejskiej, WKŁ, Warszawa 2012.
• [10] Pietras, D., Sobieszczański, M., Problemy regulacji silnika o zapłonie iskrowym z recyrkulacja spalin, Silniki spalinowe, Nr 2 (119), pp. 12-22, 2004.
• [11] Postrzednik, S., Żmudka, Z., Przybyła, G., Influence of the exhaust gas recirculation on the oxygen contents and its excess ratio in the engine combustion chamber, Journal of KONESPowertrain and transport, Vol. 20, No. 3, pp. 315-321, 2013.