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Ignition of Coal Particle Suspension in Oxy-fuel (O2/CO2) Atmosphere

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The objective of the study was to explain the effect of coal type, coal composition and oxy-fuel (O2/CO2) atmosphere on ignition characteristics (ignition temperatures and ignition delay) of fuel particle clouds. Three different coals (in ranks from brown to bituminous) were selected. The experimental program involved the variation of furnace temperatures ranging from 400 to 1050°C and oxygen concentrations from 5 to 30 % O2 vol. in mixture of O2/CO2. A higher coal rank and lower oxygen concentration and furnace temperature make ignition more difficult. The correlations between ignition characteristic and, both coal rank and reactivity, were analyzed.
Słowa kluczowe
Rocznik
Strony
155--166
Opis fizyczny
Bibliogr. 17 poz., rys., tab.
Twórcy
autor
autor
autor
autor
Bibliografia
  • [1] Arias B., and others, Effect of biomass blending on coal ignition and burnout during oxy-fuel combustion, Fuel 87 (2008) 2753–2759.
  • [2] Jordan K., and others., Oxyfuel combustion for coal – fired power generation with CO2 capture – opportunities and challenges, 7th International Conferences on Greenhouse Gas Control Technologies, Vancouver, Canada, September 2004.
  • [3] Buhre B.J.P., and others, Oxy-fuel combustion technology for coal-fired power generation, Progress in Energy and Combustion Science 31 (2005) 283–30.
  • [4] Beer J.M., High efficiency electric power generation: the environmental role, Progress in Energy and Combustion Science 33 (2007) 107–134.
  • [5] Wall T. F., Combustion processes for carbon capture, Proceedings of the Combustion Institute 31 (2007) 31–47.
  • [6] Cisowski R., Ignition of dust air mixture, PhD Thesis, Wroclaw University of Technology 2004.
  • [7] Rybak W, J. Żelkowski, S. Remke, Experimental and theoretical studies of ignition behaviour of coal char and coal particle suspensions, Proceedings of the International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Bergen, Norway, p. 3.1-3.10, 1996.
  • [8] Hu Y., and others, CO2 NOx and SO2 emission from the combustion of coal with high oxygen concentration gases, Fuel Vol. 79, p. 1925-1932, 2000
  • [9] Hu Y., and others, The reduction of recycled-NOx in coal combustion with O2/recycled flue gas under low recycling ratio, Fuel Vol. 80, p. 1851-11855, 2001
  • [10] Croiset, E., Thambimuthu, K.V., NOx and SO2 emissions from O2/CO2 recycle coal combustion, Fuel Vol. 80, p. 2117-2121, 2001
  • [11] Liu H., Comparisons of pulverized coal combustion in air and in mixtures of O2/CO2, Fuel Vol. 84, p. 833-840, 2005
  • [12] Toporov, D., and others, Detailed investigation of a pulverized fuel swirl flame in CO2/O2 atmosphere, Combustion and Flame Vol. 155, p. 605-618, 2008
  • [13] Khare S.P., and others, Factors influencing the ignition of flames from air-fired swirl pf burners retrofitted to oxy-fuel, Fuel Vol.87, p.1042–1049, 2008
  • [14] Yewen T., and others, Combustion characteristics of coal in a mixture of oxygen and recycled flue gas, Fuel Vol. 85, p. 507–512, 2006
  • [15] Ponzio A., and others, Ignition of single coal particles in high-temperature oxidizers with various oxygen concentrations, Fuel Vol. 87, p. 974–987, 2008
  • [16] Shaddix C.R., Molina A., Particle imaging of ignition and devolatilization of pulverized coal during oxy-fuel combustion, Proceedings of the Combustion Institute Vol. 32, p. 2091-2098, 2009
  • [17] Jeffery J., and others, Combustion kinetics of coal char in oxygen-enriched environments, Combustion and Flame Vol. 144, p. 710-729, 2006
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWM4-0030-0039
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