skip to contents

Archive

  • Title(Kor)
    저탄장에서의 석탄 자연발화에 관한 수치 해석적 연구
  • Title(Eng)
    Numerical Study on Spontaneous Combustion in Coal Stockpile
  • Keyword
    Spontaneous combustion(자연발화), Coal stockpile(석탄더미), Mathematical models(수학적모델), Numerical analysis(수치해석), Moisture evaporation(수분증발)
  • Author(Kor)
    홍진표†⋅김재관⋅지준화⋅박석운⋅서동균⋅이진향
  • Author(Eng)
    JINPYO HONG†, JAEKWAN KIM, JUNHWA CHI, SUKWOON PARK, DONGGYUN SEO, JINHYANG LEE
  • Date
    2017-12
  • Attach file
  • Page
    Page. 721-728
  • Abstract(Eng)
  • 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°C and spontaneous combustion have not been occurred during 6 months since coal was piled in the stock.