Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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Combustion Characteristics of Cylindrical Premixed Combustor using Liquid Fuel by Self Evaporation

자열증발된 액체연료를 적용한 원통형 예혼합 연소기의 연소특성

  • Lee, Pil Hyong (Division of Mechanical System Engineering, Incheon National University) ;
  • Song, Ki Jong (Korea Energy Appliances Industry Association) ;
  • Hwang, Sang Soon (Division of Mechanical System Engineering, Incheon National University)
  • 이필형 (인천대학교 기계시스템공학부) ;
  • 송기종 (한국에너지기기산업진흥회) ;
  • 황상순 (인천대학교 기계시스템공학부)
  • Received : 2016.02.29
  • Accepted : 2016.06.22
  • Published : 2016.09.30
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Abstract

The fuel in conventional liquid fuel combustor is atomized by spray method for high efficiency and low emissions. To improve the overall fuel efficiency and lower pollutant emissions in liquid fuel combustion systems, the effective spatial and temporal separation of droplet evaporation from normal spray process is needed. In this paper, the recuperation of high temperature burnt gas for fuel evaporation was proposed to develop a cylindrical premixed combustor. The recuperation process using U shaped tube is effective to evaporate the liquid fuel. The results show that the flame mode is changed into red radiation flame, blue flame and lift off flame with decreasing equivalence ratio as gas fuel combustion mode. In particular, the blue flame is found to be very stable at heating load 9.2 kW and equivalence ratio 0.731. NOx was measured blow 105 ppm ($O_2$ zero base) from equivalence ratio 0.705 to 0.835. CO which is a very important emission index in liquid fuel combustor was observed below 5 ppm ($O_2$ zero base) under the same equivalence region.

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References

  1. M. A. Mujeebu, M. Z. Abdullah, M. Z. Abu Bakar, A. A. Mohamad, and M. K. Abdullah, Applications of porous media combustion technology - A review., Applied Energy., 86, 2009, 1365-1375 https://doi.org/10.1016/j.apenergy.2009.01.017
  2. R. Echigo, Effective Energy Conversion Method between Gas Enthalpy and Thermal Radiation and Application to Industrial Furnaces, Proceeding of the 7th International Heat transfer Conference, Hemisphere Publishing Corporation, Vol. 6(1980), pp. 361-366.
  3. Y. Yoshizawa, Analytical Study of the Structure of Radiation Controlled Flame, Int. J. Heat Mass Transfer., Vol. 32, No. 2(1988) pp. 311-319. https://doi.org/10.1016/0017-9310(89)90178-6
  4. Andrew J. Minchener, "Coal gasification for advanced power generation", Fuel, 84(2005), pp.2222-2235. https://doi.org/10.1016/j.fuel.2005.08.035
  5. S. Vijaykant, A. K. Agrawal, Liquid fuel combustion within silicon-carbide coated carbon foam, Experimental Thermal and Fluid Science, 32(2007), pp.117-125. https://doi.org/10.1016/j.expthermflusci.2007.02.006
  6. S. W. Yang, S. S. Hwang, Flame Pattern and Stability Characteristics in Perforated Cordierite Burner, J. Korean Soc. Combust., Vol.10, No. 1(2005), pp. 7-12.
  7. E. S. Cho, C. K. Kwon, K. S. Choi, A Study on the Combustion Characteristics of Flat-Plate Premixed Burner for Various Flame Surface Media and Heat Exchangers, Trans. Korean Soc. Mech. Eng. B, Vol. 38, No. 10, pp.1033-1041.
  8. S. M. Kum, B. H. Yu, C. E. Lee, S. R. Lee, Characteristics of Combustion and Thermal Efficiency for Premixed Flat Plate Burner Using a Porous Media, Journal of Energy Engineering, Vol. 21, No. 4, pp.385-392. https://doi.org/10.5855/ENERGY.2012.21.4.385
  9. A. H. Al-Abbas, J. Naser, D. Dodds, CFD modelling of air-fired and oxy-fuel combustion in a large-scale furnace at Loy Yang A brown coal power station, Fuel, Vol. 102(2012), pp.646-365. https://doi.org/10.1016/j.fuel.2012.06.028
  10. M. J. Kwon, C. Y. Lee, S. W. Kim, An Experimental Study of Petroleum Cokes Air Staged Burner, J. Korean Soc. Combust., Vol.20, No. 2(2015), pp. 40-45. https://doi.org/10.15231/jksc.2015.20.2.040
  11. S. R. Turns, Introduction to Combustion, McGraw-Hill, 2006.
  12. H. J. Lee, S. H. Seo, Experimental Study on Spectral Characteristics of Kerosene Swirl Combustion, Procedia Engineering, Vol. 99(2015), pp. 304-312. https://doi.org/10.1016/j.proeng.2014.12.539
  13. http://heating.danfoss.com/home
  14. K. Y. Lee, A study on Characteristics of Spray Combustion for High Efficiency and Low NOx Emission in the Dual Swirl Burner, M. S. Thesis, Incheon National University, 2000
  15. P. H. Lee, S. S. Hwang, Formation of Lean Premixed Surface Flame Using Porous Baffle Plate and Flame Holder, Journal of Thermal Science and Technology, Vol. 8, No. 1(2013), pp.178-189. https://doi.org/10.1299/jtst.8.178
  16. B. I. Park, P. H. Lee, S. H. Jo, E, C, Jung, S. S. Hwang, Combustion Characteristics of Cylindrical Flat Premixed Burner for Condensing Boiler, The 40th KOSCO Symposium, 2010, 287-291.
  17. J. P. Lee, J. M. Kim, S. R. Lee, C. E. Lee, A Study on Emission Characteristics of Inserting CO Tube, Journal of Energy Engineering, Vol. 19, No. 3, pp.182-187.