Combustion of mixtures of biogases and syngases with high molar fraction of methane in strong swirl flow

• Autorzy: Ślefarski R. , Sacha J. , Grzymisławski P.
• Języki publikacji: EN

Abstrakty

EN

The paper presents results of experimental studies on combustion of mixtures of methane and biogas and syngas in the swirl burner. The swirl of the stream of mixture of air and gases in the burner was generated by a swirler with helical blades. The study was focused on the influence of molar fraction of carbon dioxide (for biogas) and hydrogen (for syngas) on flame stability and emissions of nitric oxide compounds during combustion. The results, both experimental and numerical, show that a low content of carbon dioxide in methane- air mixture leads to better flame stability through an increase of the volume of the recirculation zone. It also leads to the lowering of emission of nitric oxides caused in the first order by the lowering of the temperature of flame. Co-combustion of natural gas with syngas containing hydrogen results in a considerable increase in flame stability due to a strong increase in velocity of flame propagation in laminar flow. It also causes increasing turbulent velocity of flame propagation. However, when a limit of molar fraction of hydrogen is passed, it leads to flashback.

Słowa kluczowe

EN

biogas; syngas; combustion; swirl flow

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2014
• Tom: Vol. 34 nr 2
• Strony: 117--128
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Ślefarski R.

• Poznan University of Technology, Pl. Marii Skłodowskiej-Curie 5, Poznan, Poland

autor

Sacha J.

• Energo-Doradztwo.pl, Poland

autor

Grzymisławski P.

• Poznan University of Technology, Pl. Marii Skłodowskiej-Curie 5, Poznan, Poland

Bibliografia

• [1] Directive 2009/73/EC of the European Parliament and of the Council of 13 July 2009
• [2] Energy Policy of Poland until 2030, Warsaw, 2009
• [3] http://www.biogasportal.info/biogas-gewinnung/was-ist-biogas/
• [4] Polish Energy Law, §9c section 6a
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• [7] J. Sacha, Ph.D thesis, Poznan University of Technology, 2013
• [8] S. Daniele, P. Jansohn, K. Boulouchos, Flashback Propensity of Syngas Flame at High Pressure Diagnostic and Control, Preceedings of ASME Turbo Expo 2010, Glasgow, GT2010-23456
• [9] J. M. Beer, N. A. Chigier: Combustion aerodynamics, Applied Science Publishers, London 1972
• [10] T. Dobski, J. Pientka: Blow-off limits of premixed strong swirl flame of nitrified natural gas, Archivum Combustionis, 1988, Vol. 8, No 3/4, pp. 295-305
• [11] H.S. Kim, V.K. Arghode, M.B. Linck, A. K. Gupta, Hydrogen addition effects in a confined swirlstabilized methane-air flame, International Journal of Hydrogen Energy 34 (2009) 1054–1062
• [12] http://sourceforge.net/projects/cantera
• [13] Chomiak J.: Combustion, a study in theory, fact and application, Institute of Aeronautics, Warsaw, Poland, Gordon and Breach Science Publishers 1990