Heat release characteristics in combustion chamber of CI engine

• Autorzy: Jankowski A. , Lagowski P. , Slezak M.
• Języki publikacji: EN

Abstrakty

EN

On the basis of the internal heat balance of CI engine with direct fuel injection, the quantity of heat transported during the combustion process from the combustion zone was determined. The real indicator diagrams are the bases for determination of the heat release Characteristics during the combustion process and making up of the internal heat balance. These diagrams were worked out for the engine fuelled with diesel oil for three sets of the injection timing and for work of the engine according to the full load engine Characteristics, and the load Characteristics taken at the engine speedb for the maximum engine torque. Tests with the three different injection timing were carried out. Tests with the load characteristics of the compression-igniting engine for five values of the power were carried out. The pressure in the cylinder of the engine during combustion process was recorded by means of liąuid cooled a piezo-electric quartz sensor with a load amplifier. Characteristics of heat release depended on the composition, temperature and the mol quantity of the working charge in the cylinder during the combustion process. Characteristics of the heat release were determined with the use of the novel calculation program. The program was worked out by authors at the assumption that the process of complete combustion was finished at the moment of the opening of the engine exhaust valve. For purpose of simplification calculation of the quantity of heat lost into the cooling system, the radiation, dissociation and incomplete combustion, were assumed to change during the combustion process in a linear way.

Słowa kluczowe

EN

internal combustion engines; diesel engines; combustion processes; heat release

• 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. 3
• Strony: 155--164
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Jankowski A.

autor

Lagowski P.

autor

Slezak M.

• Institute of Aviation Al. Krakowska 110/114, 02-256 Warsaw, Poland tel: [phone], fax: [phone],

Bibliografia

• [1] Ambroziak, A., Ambroziak, T., Łagowski, P., Wpływ obciążenia silnika AD3.152 UR na charakterystyki wydzielania ciepła podczas procesu spalania, Susiec 2008r.
• [2] Ambroziak, A., Wybrane zagadnienia procesów cieplnych w tłokowych silnikach spalinowych, Politechnika Świętokrzyska, Kielce 2003.
• [3] Ambrozik, A., Ambrozik, T., Łagowski, P., Aproksymacja rzeczywistego wykresu indykatorowego funkcjami sklejanymi, XV Ogólnopolskie Sympozjum Naukowe Motoryzacyjne Problemy Ochrony Środowiska organizowane przy współpracy z KONES, PTNSS i PTPE, Wydział Samochodów i Maszyn Roboczych Politechniki Warszawskiej, grudzień 2007.
• [4] Ambrozik, A., Kurczyński, D., Łagowski, P., The heat emission factor during the process of combustion in an AD3.152 engine supplied with various fuels. First International Congress on Combustion Engines, PTNSS KONGRES – 2005, The Development of Combustion Engines, Bielsko-Biała/Szczyrk 2005.
• [5] Chiodi, M., Bargende, M., Improvement of Engine Heat-Transfer Calculation in the Three- Dimensional Simulation Using a Phenomenological Heat-Transfer Model, SAE Paper No. 2001-01-3601, 2001.
• [6] Chomiak, J., Podstawowe problemy spalania, PWN, Warszawa 1977.
• [7] Jankowski, A., Jarosiński, J., Ślęzak, M., Evaluation of Heat Transfer from Combustion Gases to Combustion Chamber Walls of Piston Engines, Proc. 12th EAEC European Automotive Congress, Bratislava 2009.
• [8] Konorski, B., Krysicki, W., Nomografia i graficzne metody obliczeniowe, zastosowania w technice, Wydawnictwa Naukowo-Techniczne, Warszawa 1973.
• [9] Lin, L., Shulin, D., Jin, X., Jinxiang, W., Xiaohong, G., Effects of Combustion Chamber Geometry on In-Cylinder Air Motion and Performance in a DI Diesel Engine, SAE Paper No. 2000-01-0510, 2000.
• [10] Maćkowski, J., Wyznaczanie ilości ciepła przejmowanego przez ścianki komory spalania silnika spalinowego w zerowymiarowym modelu procesu spalani, Silniki Spalinowe Nr 3-4, 1990.
• [11] Oppenheim, A. K., Combustion in Piston Engines, Technology, Evolution, Diagnosis and Control, Springer-Verlag Berlin Heidelberg 2004.
• [12] Rasch, F., Digital diagnostics of combustion process in piston engine. Recent Advances In Mechatronice. Springer-Verlag Berlin Heidelberg 2007.
• [13] Saeed, F., Al-Garni, A. Z., Numerical Simulation of Surface Heat Transfer from an Array of Hot Air Jets, Proc. 25th AIAA Applied Aerodynamics Conference, 2007, Miami, FL, AIAA Paper 2007-4287, 2007.
• [14] Scott B. Fiveland, Dennis, N. Assanis,, A., Four-Stroke Homogeneous Charge Compression IgnitionEngine Simulation for Combustion and Performance Studies, SAE Paper No. 2000- 01-0332, 2000.
• [15] Sugihara, T., Shimano, K., Enomoto, Y., Suzuki, Y., Emi, M., Direct Heat Loss to Combustion Chamber Walls in a DI Diesel Engine, Development of Measurement Technique and Evaluation of Direct Heat Loss to Cylinder Liner Wall, SAE Paper 2007-24-0006, 2007.
• [16]Wimmer,, A., Quasi-dimesional Modeling of Charge Motion for the Simualtion of Combustion and Heat Transfer, 4th Stuttgart International Symposium, 2001.
• [17] Woschni, G., A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine, SAE Paper No. 670931, SAE Transactions, Vol. 76, 1977.
• [18] Ying Huang, Vigor Yang, Effect of swirl on combustion dynamics in a lean-premixed swirlstabilized combustor, Proceedings of the Combustion Institute 30, pp. 1775-1782, 2005.