Novel method appointing of the effective heat release coefficient during combustion process based on real indicator diagram

• Autorzy: Jankowski A. , Ambrozik A. , Jankowska-Sieminska B. , Ślęzak M.
• Języki publikacji: EN

Abstrakty

EN

An object of the paper is a novel method of effective heat release coefficient appointing during combustion process of the based on the real indicator diagram. The process quality of the heat release during process of combustion is evaluated by value of the effective heat release coefficient. Accepted assumptions at appointing effective coefficient of heat release refer to acceptable that thermodynamical parameters of the working charge according to points of the real indicator diagram and the computational diagram are such the same, the maximum pressure of real working cycle of the engine is equal to the pressure of the computational cycle, work of the working charge performed in period from point of closing of the inlet valve to point of the beginning of the exhaust process are for both considered working cycles equal, heat values of the carried to the real and computational cycle are such the same. The method of appointing of the self-ignition delay period is presented in the paper, using to this end intersection point of two graphs of temperature course of the working charge prepared for the first phase of combustion process. Other methods appointing characteristics is suggested in paper basing on the real indicator diagram. The graphic illustration of the preparing method of characteristics of the relative quantity of the heat release during combustion process is illustrated in paper.

Słowa kluczowe

EN

combustion engine; working cycle; thermodynamics; indicator diagram; 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: 2007
• Tom: Vol. 14, No. 4
• Strony: 133--142
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Jankowski A.

autor

Ambrozik A.

autor

Jankowska-Sieminska B.

autor

Ślęzak M.

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

Bibliografia

• [1] Ambrozik, A., Jankowski, A., Kruczynski, S., Slezak, M., Researches of CI Engine Fed with the Vegetable Fuel RME Oriented on Heat Release, FISITA Paper F2006P258, Yokohama 2006.
• [2] Blank, D. A., Methanol hypergolic combustion kinetics (without N2) and frozen equilibrium in radical-ignition reduced compression ratio D.I. engines using piston micro-chambers. Warrendale, PA, Society of Automotive Engineers, 2004-01-1847, 2004
• [3] 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.
• [4] Christensen, M., Johansson, B., Amneus, P. and Mauss, F., Supercharged Homogeneous Charge Compression Ignition, SAE Paper 980787, 1998.
• [5] Habchi, C., Lafossas, F.A., Beard, P., Broseta, D., Formulation of a Fuel Lumping Model toAsses the Effects of Fuel Thermodynamic Properties on Internal Combustion Engine MixturePreparation and Combustion, SAE paper 2004-01-1996, 2004.
• [6] Heywood, J. B., Internal combustion engine fundamentals. New York, Mc-Graw Hill Book Company, 1988.
• [7] Onishi, S., Jo, S. H., Shoda, K., Jo, P. D., Kato, S., Active Thermo – Atmospheric Combustion (ATAC) – A New Combustion Process for Internal Combustion Engines, SAE Paper 790501, 1979.
• [8] Oppenheim, A. K., Combustion in piston engines: technology, evolution, diagnosis, and control. Berlin, New York, Springer, 2004.
• [9] Rychter, T., Teodorczyk, A., Modelowanie matematyczne roboczego cyklu silnika tłokowego, Warszawa, PWN, 1990.
• [10] Tamin, J., Hallett, W. L. H., Continuous Thermodynamics Model for Multicomponent Vaporization, Chem. Engr. Sci., Vol. 50, No. 18, 2933-2942, 1995.
• [11]Wimmer, A., Quasi-dimesional Modelling of Charge Motion for the Simulation of Combustion and Heat Transfer, 4th Stuttgart International Symposium, 2001.
• [12]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.
• [13]Woschni, G., Calculations of Wall Heat Losses and Thermal Load of Diesel Engines, MTZ 31, 1970.
• [14]Woschni, G., Universal Applicable Equation for the Instantaneous Heat transfer Coefficient in the Internal Combustion Engine, SAE paper No. 670931, 1967.
• [15] Yasuo, T., A New Era in Spark-Ignition Engines Featuring High-Pressure Direct Injection, Twenty-Seventh Symposium (International) on Combustion/The Combustion Institute, pp.2055–2068, 1998.