SEARCH WITHIN CONTENT
Citation Information : Transport Problems. Volume 15, Issue 1, Pages 39-48, DOI: https://doi.org/10.21307/tp-2020-004
License : (CC BY 4.0)
Received Date : 12-September-2018 / Accepted: 28-February-2020 / Published Online: 26-March-2020
In this paper, the results of modeling of the burning process in the piston engines whose working process is realized on the basis of various conceptual approaches are presented: in diesel with direct injection of the fuel; in a gas engine with spark ignition; and in a two-fuel engine (in the gas-diesel), where the mixture of natural gas and air ignites with the help of the fuse dose of the diesel fuel. The models of burning based on the different in-principle approaches are analyzed and used. Verification of the models is performed by a comparison of the results of modeling with the experimental diagrams. The specific values of the empirical coefficients, used in modeling of the burning process in the engines under study, are determined. The practical recommendations on the choice of the burning model depending on the working process conception are given.
1. Merker, G. & Schwarz, Ch. & Stiesch, G. & et al. Verbrennungsmotoren. Simulation der verbrennung und Schadstoffbildung. [In German: Internal combustion engines. Simulation of combustion and pollutant formation]. Teubner-Verlag: Stuttgart, Leipzig, Wiesbaden. 2016. 820 p.
2. Warnatz, J. & Maas, U. & Dibble, R.W. Verbrennung: Physikalisch-chemische grundlagen, modellierung und simulation, experimente, schadstoffentstehung. [In German: Combustion: physical-chemical basics, modeling and simulation, experiments, pollutant formation]. 3. Auflage. Berlin-Heidelberg: Springer-Verlag. 2001. 326 p.
3. FIRE. Users manual. Version 2014 / AVL List GmbH. Graz, Austria. 2018.
4. Kavtaradze, R. & Natriashvili, T. & Gladyshev, S. Hydrogen-Diesel engine: Problems and prospects of improving the working process. SAE Technical Paper. 2019. No 2019-01-0541. 15 p.
5. Magnussen, B.F. & Hjertager, B.H. On mathematical models of turbulent combustion with special emphasis on soot formation and combustion. 16-th International Symposium on Combustion. 1976. Cambrige. P. 719-729.
6. Heywood, J. B. Internal combustion engines. McGraw-Hill, Singapore. 1988. 551 p.
7. Guan Heng Yeoh & Kwok Kit Yuen (edit.). Computational fluid dynamics in fire engineering: theory, modelling and practice. Linacre House. Oxford. 2009. 531 p.
8. Charles, E. & Baukal Jr. Oxygen-Enhanced Combustion. Second Edition. London, New York: CRC Press. 2013. 744 p.
9. Chmela, F. & et al. Konsistente methodik vorausrechnung der verbrennung in kolbenkraftvaschinen. [In German: Consistent methodology for pre-calculation of combustion in piston engines]. MTZ. 2006. Vol. 6. Р. 468-475.
10. Mobasheri, R. Analysis the ECFM-3Z combustion model for simulating the combustion process and emission characteristics in a HSDI Diesel engine. International journal of spray and combustion dynamics. 2015. Vol. 7. No 4. P. 353-372.
11. Fonseca, L. & Braga, R. & Morais, L. & Huebner, R. & et al. Tuning the parameters of ECFM3Z combustion model for CFD 3D simulation of a two valve engine fueled with ethanol. SAE Technical Paper. 2016. No 2016-36-0383.
12. Kavtaradze, R.Z. & Natriashvili, T.M. & Zelentsov, A.A. Ignition delay and emission of the nox. ious substances in double-fuel engines working on the natural gas and syngases. Chapter 15. P. 109-120. In the Book: Innovative Methods for Improvement of Technical, Economic and Ecological Efficiency of Motor Cars. ISBN: 978-1-63463-671-1. New Yor: NOVA-Publishers. 2015.
13. Dembinski, H.W.R. In-cylinder flow characterisation of heavy duty diesel engines using combustion image velocimetry. Doctoral Thesis. Department of Machine Design, Royal Institute of Technology. Stockholm. 2014. 97 p.