Study of the influence of different factors on combustion processes (Part two)

• Autorzy: Jankowski A.
• Języki publikacji: EN

Abstrakty

EN

The gas-phase occurs in homogeneous or heterogeneous form. In thefirst case the kinetics of chemical reactions controls processes of the combustion, in second, heterogeneous one - processes to run most slow down. For liquid fuels, decomposition processes of the liquid phase occur, that is processes vaporize of the fuel. Decomposition processes need a lot of heat, run slowly down than processes of the preparation of the mixture in gas phase of. The influence of the pressure on processes of the combustion of liquid fuels differs from the influence on the processes of the combustion of fuel gases. Pressure increasing decreases the intensity decomposition of the liquid phase. Flow of combustion gases intensifies combustion processes. Example-test results PIV velocity field, test results with LDV and PDPA are presented in the paper. The linear and volumetric distribution of the drop, and the Rosin - Rammler dependences as well as the course of the combustion process in the constant volume chamber are an object of the paper. The paper describes the mathematical model of the combustion process of the liquid fuel. Realized initial measurement of the boundary-layer thickness under model conditions with using of the LDV laser-equipment showed that the close relationship between the kinds of the boundary-layer existed, with its thickness and rate of the combustion of liquid fuels, washed with the gases stream. The pressure additionally bears on the velocity component of combustion rate, whereat this influence depends mostly from the kind of the fuel.

Słowa kluczowe

EN

combustion engines; combustion processes; fuel atomization; combustion modelling; laser research

• 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: 2009
• Tom: Vol. 16, No. 3
• Strony: 135--140
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Jankowski A.

• Air Force Institute of Technology Księcia Bolesława 6 Warszawa, Poland tel: [phone], fax: [phone],

Bibliografia

• [1] Ishihara, A., Sakai, Y., Konishi, K., and Andoh, E., Correlation between burning surface temperature and regression rate for polymethylmethacrylate, Proceedings of the CombustionInstitute, Vol. 30, pp. 2123–2130, Pittsburgh 2005.
• [2] Jankowski, A., Modeling Boundary Layer from Point of View Combustion of Liquid and Solid Fuels, Proceedings of The Seventeenth Annual International Conference on Composites / Nano Engineering (ICCE - 17), Math., USA 2009.
• [3] Jankowski, A., Baczewski, K., Slezak, M., Investigations of Influence of Aging Processes on Properties of Rapeseed Methyl Esters and Their Blends with Diesel Fuels, FISITA 2008, F2008-09-059 Paper, 2008.
• [4] Jankowski, A., Study of the Influence of Different Factors on Combustion Processes (Part One), Journal of KONES Powertrain and Transport, Vol. 16, No. 1, pp. 209-216, 2009.
• [5] Kruczynski. S. W., Danilczyk, W., Ambrozik, A., Jankowski, A., Slezak, M., Performance of Three Way Catalytic Converter Containing Magnesium Oxide for SI Engines with Lean Mixtures, FISITA 2006, F2006P237 Paper, Yokohama, 2006.
• [6] Le Clercq, P. C., Bellan, J., Modeling of multi component-fuel drop-laden mixing layers having a multitude of species, Proceedings of the Combustion Institute, Vol. 30, pp. 2011-2019, Pittsburgh, 2005.
• [7] Weber, J., Peters, N., Diwakar, R., Siewert, R. M., Lippert, A., Simulation of the Low-Temperature Combustion in a Heavy Duty Diesel Engine, SAE Paper 2007-01-0904, 2007.