한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제28권6호
  • /
  • Pages.721-728
  • /
  • 2017
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  • 1738-7264(pISSN)
  • /
  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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저탄장에서의 석탄 자연발화에 관한 수치 해석적 연구

Numerical Study on Spontaneous Combustion in Coal Stockpile

  • 홍진표 (한국전력공사 전력연구원) ;
  • 김재관 (한국전력공사 전력연구원) ;
  • 지준화 (한국전력공사 전력연구원) ;
  • 박석운 (한국전력공사 전력연구원) ;
  • 서동균 (한국전력공사 전력연구원) ;
  • 이진향 (한국전력공사 전력연구원)
  • HONG, JINPYO (Clean Combustion Group, Clean Power Generation Laboratory) ;
  • KIM, JAEKWAN (Clean Combustion Group, Clean Power Generation Laboratory) ;
  • CHI, JUNHWA (Clean Combustion Group, Clean Power Generation Laboratory) ;
  • PARK, SUKWOON (Clean Combustion Group, Clean Power Generation Laboratory) ;
  • SEO, DONGGYUN (Clean Combustion Group, Clean Power Generation Laboratory) ;
  • LEE, JINHYANG (Clean Combustion Group, Clean Power Generation Laboratory)
  • 투고 : 2017.10.17
  • 심사 : 2017.12.29
  • 발행 : 2017.12.31
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초록

In this work, an one-dimensional analysis on spontaneous combustion in a coal stockpile was conducted using a commercial software $gPROMS^{(R)}$ based on assumption suggested by Arioy and Akgun. According to them, it is assumed that there is temperature difference between the surface of coal particle and the gas surrounded around the particle, and it is also assumed that the velocity of the gas is constant and thus oxygen is fed to the stockpile with same velocity. The higher temperature zone is formed to the surface of the coal stockpile at the initial phase and it became deepen as time is taken. Finally it was found that the temperature difference between coal particle and the gas was calculated as $57^{\circ}C$ and spontaneous combustion have not been occurred during 6 months since coal was piled in the stock.

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참고문헌

  1. Korea Energy Economics Institute, "Monthly Energy Statistics", Korea Energy Economics Institute, Vol. 33-06, 2017, p. 9.
  2. I. S. Park, C. J. Kim, C. H. Sohn, and K. S. Paik, "A Numerical Simulation of the Spontaneous Ignition of Coal Stockpiles", The Korean Society of Mechanical Engineers, 2009, pp. 1601-1613.
  3. B. Moghtaderi, B. Z. Dlugogorski, and E. M. Kennedy, "Effects of wind flow on self - heating characteristics of coal stockpiles", Institution of chemical engineers, Vol. 78, 2000, pp. 445-453. https://doi.org/10.1205/026387600527347
  4. V. Fierro, J. L. Miranda, C. Romero, and J. M. Andres, "Prevention of spontaneous combustion in coal stockpiles Experimental results in coal storage yard", Fuel Processing Technology, Vol. 59, 1999, pp. 23-34. https://doi.org/10.1016/S0378-3820(99)00005-3
  5. X. Zhilin, L. Ding, and F. Zhenya, "Characteristics of polymorphic foam for inhibiting spontaneous coal combustion", Fuel, Vol. 206, 2017, pp. 334-314. https://doi.org/10.1016/j.fuel.2017.06.022
  6. H. D. Lee and J. K. Kim, "Study on the Correlation between Thermal Characteristics and Heat Accumulation in the Coal pile", Vol. 15, No. 4, 2010, pp. 58-64.
  7. E. R. Monazam, L. J. Shadle, and A. Shamsi, "Spontaneous combustion of char stockpiles", Energy & Fuels, Vol. 12, 1998, pp.1305-1312. https://doi.org/10.1021/ef980094m
  8. A. Arisoy and F. Akgun, "Modelling of spontaneous combustion of coal with moisture content in cluded", Fuel, Vol. 73, 1994, pp. 281-286. https://doi.org/10.1016/0016-2361(94)90126-0
  9. G. G. Karsner and D. D. Perlmutter, "Reaction regimes in coal oxidation", American Institue of Chemical Engineers, Vol. 27, 1981, pp. 920-927. https://doi.org/10.1002/aic.690270607
  10. B. S. Besty, "A Methmetical model for the combustion of a porous carbon particle", Comustion and Frame, Vol. 32, 1978, pp. 295-311.
  11. V. S. Evseev and S. P. Voroshilov, "Modeling the process of self-ignition taking into account the influence of moisture on oxidative processes in coal", Soviet Mining, Vol. 22, 1986, pp. 140-146. https://doi.org/10.1007/BF02500805
  12. S. C. Banergee, "Spontaneous Combustion of Coal and Mines Fires", Rotterdam, 1985.
  13. gPROMS, "Introductory User Guide(Release 2.3)", Process Systems Enterprise Ltd., 2004.
  14. J. H. Chi, M. Oh, S. M. Kim, M. Y. Kim, J. W. Lee, and U. S. Kim, "Dynamic Modeling of Gasification Reactions in Entrained Coal Gasifier", Trans. of the Korean Hydrogen and New Energy Society, Vol. 22, 2011, pp. 386-401.
  15. J. H. Chi, "Mathematical Model and Numerical Analysis for Packed Bed Methanation Reactors", Vol. 26, 2015, pp. 260-270. https://doi.org/10.7316/KHNES.2015.26.3.260