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LN01 - Internal Combustion Engines ME 422 Yeditepe...

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1 Internal Combustion Engines – ME 422 Yeditepe Üniversitesi Principles of Engine Operation Prof.Dr. Cem Soru ş bay Information Prof.Dr. Cem Soru ş bay İ stanbul Teknik Üniversitesi Makina Fakültesi Otomotiv Laboratuvar ı Ayaza ğ a Yerle ş kesi, Maslak – İ stanbul Tel. 212 – 285 3466 [email protected] http://web.itu.edu.tr/sorusbay
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2 Course Plan Principles of SI and CI engine operation , 2-stroke engines, 4-stroke engines Ideal standard cycles , thermal efficiencies, comparison, deviations Classification of engine fuels Real engine strokes , induction stroke, volumetric efficiency Compression stroke, Combustion in SI engines and influencing parameters Abnormal combustion , parameters influencing knock and early ignition Combustion in CI engines , parameters influencing ignition delay Expension and exhaust strokes, exhaust emissions Mixture preparation in SI engines Mixture preparation in CI engines , injection pumps, injectors Engine characteristics and performance . References Textbook ¾ Pulkrabek, W.W., Engineering Fundamentals of the Internal Combustion Engine, Prentice Hall, New Jersey, 1997 ¾ Soru ş bay, C., IC Engine, Lecture Notes (Power Point) Other References ¾ Soru ş bay, C. et al., İ çten Yanmal ı Motorlar, Birsen Yay ı nevi, İ stanbul, 1995. ¾ Heywood, J.B., Internal Combustion Engine Fundamentals, McGraw Hill Book Company, New York, 1988. ¾ Stone, R., Introduction to Internal Combustion Engines, Macmillan, London, 1994. ¾ Other references given in the list (see web page)
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3 Internal Combustion Engines – ME422 Principles of IC Engine Operation ¾ Introduction ¾ Operation principles ¾ Classification of engines ¾ Four-stroke and two-stroke engines ¾ SI engines, CI engines Introduction Internal Combustion Engines (IC-engines) produce mechanical power from the chemical energy contained in the fuel, as a result of the combustion process occuring inside the engine IC engine converts chemical energy of the fuel into mechanical energy, usually made available on a rotating output shaft. Chemical energy of the fuel is first converted to thermal energy by means of combustion or oxidation with air inside the engine, raising the T and p of the gases within the combustion chamber. The high-pressure gas then expands and by mechanical mechanisms rotates the crankshaft, which is the output of the engine.
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