Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
권호 표지

Combustion Characteristic of Anode Off Gas for Fuel Cell Reformer

개질기용 Anode Off Gas의 연소특성에 관한 연구

  • 이필형 (인천대학교 기계공학과 대학원) ;
  • 황상순 (인천대학교 기계시스템공학부)
  • Received : 2012.11.08
  • Accepted : 2012.11.23
  • Published : 2012.12.30
Download PDF
⟨ Previous Next ⟩

Abstract

The reformer system is a chemical device that drives the conversion of hydrocarbon to hydrogen rich gas under high temperature environment($600-1,000^{\circ}C$). Generally, NG(Natural Gas) or AOG(Anode Off Gas) is used as fuel of fuel cell reformer combustion system. The experimental study to analyze the combustion characteristics of a premixed ceramic burner used for 0.5-1.0 kW fuel cell reformer was performed. Ceramic burner experiments using NG and AOG were carried out to investigate the flame stability characteristics by heating capacity, equivalence ratio and different fuels respectively. The results show that surface flames can be classified into green, red, blue and lift-off flames as the equivalence ratio of methane-air mixture decreases. And the stable flames can be established using NG and AOG as reformer fuel in the perforated ceramic burner. In particular, the blue flame is found to be stable at a lean equivalence ratio under different mixture conditions of NG and AOG for the 0.5 to 1.0 kW fuel cell system power range. NOx emission is under 60 ppm between 0.70 to 0.78 of equivalence ratio and CO emission is under 50 ppm between 0.70 to 0.84 of equivalence ratio.

Keywords

References

  1. P. H. Lee, S. A. Cho, S. S. Han and S. S. Hwang, "Performance Characteristics of Proton Exchange Membrane Fuel Cell(PEMFC) with Interdigitated Flow Channel", Int'l. J. Automotive Technology, 2007, Vol. 8, pp. 761-769.
  2. S. A. Cho, P. H. Lee, S. S. Han and S. S. Hwang, "Heat transport characteristics of flow fields in proton exchange membrane fuel cells", J. of Power Sources, 2008, Vol. 178, pp. 692-698. https://doi.org/10.1016/j.jpowsour.2007.09.057
  3. P. H. Lee and S. S. Hwang, "Performance Characteristics of a PEM Fuel Cell with Parallel Flow Channels at Different Cathode Relative Humidity Levels", 2009, Sensors, Vol. 9, pp. 9104-9121. https://doi.org/10.3390/s91109104
  4. E. Calo, A. Giannini, G. Monteleone, "Small stationary reformers for H2 production from hydrocarbons", Int'l. J. Hydrogen Energy, 2010, Vol. 35, pp. 9828-9835 https://doi.org/10.1016/j.ijhydene.2010.03.067
  5. H. Y. Tang, P. Erickson, H. C. Yoon, C. H. Liao, "Comparison of steam and autothermal reforming of methanol using a packed-bed low-cost copper catalyst", Int'l. J. Hydrogen Energy, 2009, Vol.34, pp. 7656-7665. https://doi.org/10.1016/j.ijhydene.2009.07.032
  6. M. Toledo, V. Bubnovich, A. Saveliev and L. Kennedy, "Hydrogen production in ultrarich combustion of hydrocarbon fuels in porous media", Int'l. J. Hydrogen Energy, 2009, Vol. 34, pp. 1818-1827 https://doi.org/10.1016/j.ijhydene.2008.12.001
  7. O'Hayre, R, Cha, S. W, Collolla, W., and Prinz, F. B. "Fuel cell fundamentals", John Wiley & Sons, 2006
  8. Hoogers, G, "Fuel Cell Technology Handbook", CRC Press, 2002.
  9. James Larminie and Adrew Dicks, "Fuel Cell System Explained", John Wiley & Sons, 2003.
  10. 한국가스공사, "수소제조장치용 버너의 연소특성 연구", 대학협력 최종연구보고서, 2008
  11. S. W. Yang and S. S. Hwang, "Flame Pattern and Stability Characteristics in Perforated Cordierite Burner", J. of the Korean Soc. of Combustion, Vol. 10, No. 1, pp. 7-12, 2005.