Flame propagation in a narrow gap between the piston and cylinder of a hydrogen engine

• Autorzy: Kavtaradze Revaz , Natriashvili Tamaz , Glonti Merab , Chilasvili Giorgi , Gelashvili Otar , Iosebidze Jumber

Identyfikatory

DOI

10.20858/tp.2023.18.3.16

• Języki publikacji: EN

Abstrakty

EN

The processes of flame penetration and propagation in a narrow annular gap between the piston and cylinder of a hydrogen piston engine are investigated by the method of 3D mathematical modeling. The model is verified by comparing the changes in pressure and heat release rate in the cylinder obtained from an experimental hydrogen engine, considering the data collected during numerical experiments. The movement of the flame front into the gap is analyzed by changes in the instantaneous local values of the hydrogen fractions in the mixture and the local temperatures of the cold gas (unburned mixture) and combustion products. A comparative analysis of the spread of gasoline and hydrogen flames is carried out. The phenomenon of increasing heat losses in the combustion chamber of a hydrogen engine compared to a gasoline engine, previously confirmed experimentally by different authors and not yet having an acceptable theoretical interpretation, is explained by neglecting the role of heat transfer in the indicated gap.

Słowa kluczowe

EN

hydrogen engine; 3D mathematical modeling; annular gap; flame propagation

PL

silnik wodorowy; modelowanie matematyczne 3D; szczelina pierścieniowa; rozprzestrzenianie się płomienia

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Transport Problems
• Rocznik: 2023
• Tom: T. 18, z. 3
• Strony: 189--197
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Kavtaradze Revaz

• Rafael Dvali Institute of Machine Mechanics; 10 Mindeli Str., Tbilisi 0186, Georgia

• https://orcid.org/0000-0001-9585-9245

autor

Natriashvili Tamaz

• Rafael Dvali Institute of Machine Mechanics; 10 Mindeli Str., Tbilisi 0186, Georgia

• https://orcid.org/0000-0001-9141-3641

autor

Glonti Merab

• Rafael Dvali Institute of Machine Mechanics; 10 Mindeli Str., Tbilisi 0186, Georgia

• https://orcid.org/0000-0003-2711-5089

autor

Chilasvili Giorgi

• Rafael Dvali Institute of Machine Mechanics; 10 Mindeli Str., Tbilisi 0186, Georgia

• https://orcid.org/0009-0006-4902-9076

autor

Gelashvili Otar

• Georgian Technical University; 77 Merab Kostava Str., Tbilisi 0171, Georgia

• https://orcid.org/0009-0002-4055-1176

autor

Iosebidze Jumber

• Georgian Technical University; 77 Merab Kostava Str., Tbilisi 0171, Georgia

• https://orcid.org/0009-0009-2591-9973

Bibliografia

• 1. AVL FIRE. Users Manual. AVL List GmbH, Graz, Austria. Version 2020.
• 2. Babayev, R. &, Andersson, A. & Dalmau, A.S. & Im Hong, G. & Johansson, B. Computational Characterization of Hydrogen Direct Injection and Nonpremixed Combustion in a Compression- Ignition Engine. International Journal of Hydrogen Energy. April 2021. 16 p.
• 3. Kavtaradze, R. & Natriashvili, T. & Gladyshev, S. Hydrogen-Diesel Engine: Problems and Prospects of Improving the Working Process. SAE Society of Automotive Engineers (SAE), Technical Paper. No. 2019-01-0541. USA, Detroit. 2019. 15 p.
• 4. Merker, G. & Schwarz, Ch. & Teichmann, R. (eds.) Grundlagen Verbrennungsmotoren. Funktionsweise, Simulation, Messtechnik. [In German: Basics of internal combustion engines. Functionality, simulation, measurement technology.]. Vieweg Teubner-Verlag. Springer Fachmedien, Wiesbaden GmbH. 2014. 795 p.
• 5. Merker, G. & Schwarz, Ch. & Stiesch, G. & Otto, F. Verbrennungsmotoren. Simulation der Verbrennung und Schadstoffbildung. [In German: Internal combustion engines. Simulation of combustion and pollutant formation]. Teubner-Verlag. Stuttgart, Leipzig, Wiesbaden, 2006. 410 p.
• 6. Kavtaradze, R.Z. & Onischenko, D.O. & Golosov, A.S. & Zelentsov, A.A. & Chen, Zh. & Sakhvadze, G.Zh. The Influence of the “Piston Heat Belt-Sleeve” Gap on Heat Exchange in the Combustion Chamber of an Engine Depending on the Fuel Utilized. Journal of Machinery Manufacture and Reliability. 2022. Vol. 51. No. 2. P. 112-120.
• 7. Onorati, A& Payri, R. & Vaglieco, B.M. & et al. The role of hydrogen for future internal combustion engines. Int. Jour. Engine Research. 2022. Vol. 23. No. 4. P. 529-540.
• 8. Shudo, T. Improving thermal efficiency by reducing cooling losses in hydrogen combustion engines. International Journal of Hydrogen Energy. 2007. No. 32. Р. 4285-4293.
• 9. Demuynck, J. & De Paepe, M. & Verhaert, I. & Verhelst, S. Heat loss comparison between hydrogen, methane, gasoline and methanol in a spark-ignition internal combustion engine. Energy Procedia. 2012. Vol. 29. P. 138-146.