Influence of the marine 4-stroke diesel engine malfunctions of the air and exhaust duct on the composition of exhaust gas

• Autorzy: Lewińska J.

Identyfikatory

DOI

10.5604/12314005.1165987

• Języki publikacji: EN

Abstrakty

EN

Malfunctions of an intake air duct and an exhaust gas duct have negative impact on the operation of a diesel engine. The article presents results of a laboratory study on nitric oxides (NOx), carbon monoxide (CO) and carbon dioxide (CO2) emission levels from a marine four-stroke diesel engine. CO and CO2 emission levels are connected with oxygen content and specific fuel consumption. For this reason, the results of the laboratory study present oxygen fraction in exhaust gas and specific fuel consumption. The object of the study was laboratory piston engine, operating at constant speed. The measured engine parameters were carried out according to the regulations of the Annex VI to MARPOL 73/78 Convention. The study consisted of tests during engine operation without malfunctions and engine operation with simulated malfunctions. The laboratory study consisted of 3 observations: the engine assumed as operated without malfunctions, throttling of the exhaust gas duct by rotational barrier about 56° and throttling of the air intake duct by reducing of its cross section area by 60%. The simulated malfunctions caused changes in the total weighted NOx and CO emissions in all considered engine loads. All simulated malfunctions resulted in a decrease of all mentioned emission levels in the composition of exhaust gases during the operation at low engine loads and an increase of the CO2 emission level at the maximum engine load operation. The oxygen fraction decrease was observed for throttling of the intake air duct. The calculations of the weighted specific fuel consumption present a 2-3% change in the engine efficiency.

• 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. 3
• Strony: 141--148
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Lewińska J.

• Gdynia Maritime University, Department of Engineering Sciences Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone]

Bibliografia

• [1] Charchalis, A., Diagnostic and Measurement System Dedicated for Marine Engines Exploitatory Attributes Evaluation, Journal of KONES, Vol. 19, No. 1, 2012.
• [2] ISO 8178 Regulation, International Organization for Standardization.
• [3] Jalkanen, J.-P., Brink, A., Kalli, J., Pettersson, H., Kukkonen, J., Stipa, T., Modelling System for the Exhaust Emissions of Marine Traffic and its Application in the Baltic Sea Area, Atmos. Chem. Phys., 9, 9209-9223, 2009.
• [4] Lewińska, J., Kowalski, J., Influence of the Marine 4 – stroke Diesel Engine Malfunctions on the Nitric Oxides Emission, Journal of KONES Powertrain and Transport, European Society of Powertrain and Transport Publication, Warsaw 2013.
• [5] Piotrowski, I., Witkowski, K., Okrętowe Silniki Spalinowe, Trademar, Gdynia 1996.
• [6] Revised Marpol Annex VI: Regulations for the Prevention of Air Pollution from Ships Resolution MEPC, 176 (58), International Maritime Organization, 2008.
• [7] Sarvi, A., Fogelholm, C.-J., Zevenhoven, R., Emissions from Large-Scale Medium Speed Engines: 1. Influence of Engine Operation Mode and Turbocharger, Fuel Processing Technology 89, 510-519, 2008.
• [8] Sarvi, A., Fogelholm, C.-J., Zevenhoven, R., Emissions from Large-Scale Medium Speed Engines: 2. Influence of Fuel Type and Operating Mode, Fuel Processing Technology 89, 520-527, 2008.
• [9] Sarvi, A., Fogelholm, C.-J., Zevenhoven, R., Emissions from Large-Scale Medium Speed Engines:3. Influence of Direct Water Injection and Common Rail, Fuel Processing Technology 90, 222-231, 2009.
• [10] Technical Code on Control Emission of Nitrogen Oxides form Marine Diesel Engines, Resolution MEPC, 177 (58), International Maritime Organization, 2008.