The importance of mixture preparation for industrial heat and power gas engines

• Autorzy: Romańczyk M. , Elsner W.

Identyfikatory

DOI

10.5604/01.3001.0012.4356

• Języki publikacji: EN

Abstrakty

EN

The main task of a gas mixer is to mix the fuel (gas) with air in such a way that in the gas engine optimal combustion takes place. A high efficiency of the whole combustion process and low emissions are the decisive optimization parameters. An industrial gas engine operates mostly with a lean air-gas combustion mixture with an air excess coefficient ratio of → λ=1.6. Most often heat and power industrial gas engines operate with biogas. The biogas is produced by anaerobic digestion, where biodegradable materials in the absence of oxygen are fermented. That is why the biogas fuel consists mostly of methane → CH4 (up to 70 [%]), carbon dioxide → CO2 and traces of other contaminant gases. It is well known, that the performance of industrial gas engines strongly depends on the quality of air and fuel mixing and therefore homogeneity of the mixture. Improper air-gas mixture can lead to unstable operation of the entire gas engine and excessive emissions beyond the applicable environmental standards. Therefore, in this article numerical investigations were performed using the open source computational fluid dynamics software OpenFOAM to show the importance of mixture preparation for industrial heat and power gas engines by describing in detail the mixing behaviour in a Venturi gas mixer model.

Słowa kluczowe

EN

gas engine; environmental friendly power generation; combustion processes; mixture preparation

• 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: 2018
• Tom: Vol. 25, No. 3
• Strony: 385--392
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Romańczyk M.

• Czestochowa University of Technology Faculty of Mechanical Engineering and Computer Science Institute of Thermal Machinery Armii Krajowej 21, 42-201 Czestochowa, Poland tel.: [phone]

autor

Elsner W.

• Czestochowa University of Technology Faculty of Mechanical Engineering and Computer Science Institute of Thermal Machinery Armii Krajowej 21, 42-201 Czestochowa, Poland tel.: [phone]

Bibliografia

• [1] Herdin, G., Grundlagen Gasmotoren, PGES-Skriptum, Germany 2012.
• [2] Han, K-M., Lichtleiterbasierte Methoden zur optischen Analyse von räumlichen Verbrennungs-prozessen und Verbrennungsanomalien in Ottomotoren, Technische Universität Karlsruhe, Dissertation Germany 2010.
• [3] Günther, M., et al., Pre-ignition and glow-ignition of gasoline biofuels, Research Fuels MTZ 1212013, Vol. 74, pp. 46-53, Germany 2013.
• [4] Gorjibandpy, M., Sangsereki, M. K., World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, Vol. 4, 2010.
• [5] Danardono, D., Kim, K. S., Lee, S. Y., Lee, J. H., J. Mech. Sci. Technol., 25 (9), 2285, 2011.
• [6] Romańczyk M., Elsner W., 23rd International Conference Engineering Mechanics 2017, Book of full texts: ISSN 1805-8248, ISBN 978-80-2014-5497-2, page 826-829, Svratka, Czech Republic, 15, 2017.
• [7] Romańczyk, M., Influence of gas inlet angle on the mixing process in a Venturi mixer, ITM Web of conferences Vol.15, 07005 (2017) – ISSN 2271-2097, DOI: 10.1051/itmconf/ 20171507005, CMES’17, Lublin 2017.
• [8] Devarajan, R., Comparative Evaluation of a Two Stroke Compressed Natural Gas Mixer De-sign using Simulation and Experimental Techniques, Power And Energy Systems, pp. 359-362, Langkawi, Malaysia 2008.
• [9] https://www.motortech.de/fileadmin/user_upload/manuals/MOTORTECH-Manual-VariFuel2-01.50.001-EN-2015-08-WEB.pdf, 2015.
• [10] Absi, R., Analytical solutions for the modeled k-equation, ASME J. Appl. Mech. 75, 044501, pp. 1-4, 2008

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).