Czasopismo
2006
|
Vol. 13, No. 2
|
43-50
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
Abstrakty
High demand to improve exhaust gas emission characteristics while keeping fuel economy requires a new technology for engine control. One of the methods used to meet these requirements is a convenient and real-time cylinder pressure monitoring. The final aim is balanced combustion and reliable, emission-compliant operation. Excluding the direct exhaust emission measurement, easily accessible indicators come from the in-cylinder pressure combustion data. The aim of this paper is to establish combustion model variables for use in transient condition analysis. The model should be able to predict cylinder-averaged quantities such as NOx emission. To overcome the exhaust analyzers problem, a set of engine operating conditions was tested at steady state to provide a wide range of combustion conditions with their associated emissions. Multi-zone models are the simplest and most suitable to observe the effects of empirical variations in the engine operating parameters. The obtained results are unlikely to be as detailed as those of a good CFD model, but the ease of changing characteristics makes such models useful for cheap and easy means of analyzing. Successful prediction of the NOx emission in engines varies in operating conditions. The NOx emission levels for different operating conditions are calculated for large bore, slow speed marine engine. The agreement between calculated and measured results is discussed. Cylinder pressure based model has the broad ability to predict NOx emissions in steady state.
Czasopismo
Rocznik
Tom
Strony
43-50
Opis fizyczny
Bibliogr. 7 poz., rys.
Twórcy
autor
- Maritime University of Szczecin, Engineering Department 1-2 Waly Chrobrego, 70-500 Szczecin, Poland tel.: +48-91 480 9400, fax: +48 91 480 9575, tborkowski@am.szczecin.pl
Bibliografia
- [1] Timoney D., J., Desantes J., M., Heranandez L., Lyons C.M., The development of a semiempirical model for rapid NOx concentrations evaluating using measured in-cylinder pressure in diesel engines, Proceedings of the Institution of Mechanical Engineers, Vol. 219, part D, ProQuest Science Journals pp. 621-631, 2005.
- [2] Chan S., H., He Y. and Sun J., H., Prediction of transient nitric oxide in diesel exhaust.Proceedings of the Institution of Mechanical Engineers, Vol. 213, part D, pp 327-339, 1999.
- [3] Agarwal A., Assanis D., Multi-Dimensional Modeling of Ignition, Combustion and Nitric Oxide Formation in Direct Injection Natural Gas Engines, SAE, p. 16, No; 2000-01-1839, International Spring Fuels & Lubricants Meeting & Exposition, Paris, France, June 19-22, 2000.
- [4] Gao Z., Schreiber W., A theoretical investigation of two possible modifications to reduce pollutant emissions from a diesel engine, Proceedings of the Institution of Mechanical Engineers, Vol 216, Part D J Automobile Engineering, pp.619-628, 2002.
- [5] Heywood J. B., Internal combustion engine fundamentals, McGraw-Hill, Inc., p. 779-781, 1988.
- [6] Stiesch G., Modeling Engine Spray and Combustion Processes, Springer Verlag, p. 257-260,2003.
- [7] Cui Y., Deng K., Wu J., A direct injection diesel combustion model for use in transient condition analysis, Proceedings of the Institution of Mechanical Engineers, Vol 215 Part D, ,pp. 995-1004, 2001.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0021-0079