Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지
DOI QR코드

DOI QR Code

A Stress Analysis for Pressure Vessel to Prevent Spontaneous Ignition of Coal Stockpile

저탄장 자연발화 방지를 위한 압력용기의 응력 해석

  • Kim, Young In (School of Aerospace & Mechanical Engineering, Korea Aerospace University(Hanseo University)) ;
  • Kim, Seung Hun (Department of Aeronautical Engineering, Hanseo University) ;
  • Jie, Min-Seok (Department of Avionics Engineering, Hanseo University) ;
  • Yeum, Chan Sub (People-i Ltd) ;
  • Choi, Won Hyuck (Department of Avionics Engineering, Hanseo University)
  • 김영인 (한국항공대학교 항공우주 및 기계공학부(한서대학교)) ;
  • 김승훈 (한서대학교 항공시스템공학과) ;
  • 지민석 (한서대학교 항공전자공학과) ;
  • 염찬섭 ((주)피플아이) ;
  • 최원혁 (한서대학교 항공전자공학과)
  • Received : 2018.05.15
  • Accepted : 2018.06.23
  • Published : 2018.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Spontaneous ignition is not only severe economic damage but also a typical plant damage caused by harmful gases generated during the fire. Because coal is porous, it causes oxygen to be absorbed in the amount of oxygen per unit weight of oxygen, resulting in low humidity and low thermal conductivity. The cause and effect of spontaneous ignition are very complex, so it is difficult to prevent it beforehand and once it is difficult to digest it, it is difficult to digest it. This study examines structural safety by conducting a structural analysis of the cooling ball system to prevent spontaneous combustion of coal stockpile plants and external pressures.

자연발화의 문제는 심각한 경제적 손해뿐만 아니라 화재 시 발생하는 유해가스로 인해 환경오염을 발생시키는 대표적인 발전소 피해이다. 저탄장 자연발화 예방 및 조치하기 위해 드론을 이용하는 방법이 제시되었으나 외부의 측풍과 외란으로 인한 2차 사고의 발생위험이 존재하는 상황이다. 자연발화의 원인과 영향 인자는 매우 복잡하기 때문에 사전에 예방하기가 쉽지 않으며 일단 발생하면 소화하기도 어렵다. 따라서 저탄장 내부에서 직접적으로 온도 및 상태를 측정하고 자연발화 지점에 직접적으로 냉각 가스를 분출하여 소화하는 장치가 필요하다. 본 연구는 저탄장의 자연발화를 예방하기 위한 냉각볼 장치의 내부 압력과 외부 압력에 대하여 구조해석을 실시하고 구조적 안전성에 대하여 연구한다.

Keywords

References

  1. C. J. Kim, I. S. Park and C. H. Sohn, “Numerical study on the phenomenon of spontaneous ignition of coal stockpile,” The Korean Society of Mechanical Engineers, Vol. 34, No. 7, pp. 721-727, July. 2010. https://doi.org/10.3795/KSME-B.2010.34.7.721
  2. H. K. Cheong, H. S. Lim, J. J. Cho, J. J. Byeon, Y. T. Ahn, Y. Yoon and G. J. Im, "Development of pneumoconiosis among inhabitants around a briquet factory," Korean Journal of Epidemiology, Vol. 10, No. 1, pp 102-108, June. 1988.
  3. G. K. Kim and H. M. Park, "A study on the utilization of LiDAR survey using drone," The Korea institute of Communications and Information Sciences, Vol. 11, No. 11, pp 136-137, November. 2017.
  4. J. H. Lee, S. Ch. Kim, and H.G. Kim, “Preliminary design of helicopter fuel tank,” Journal of Aerospase System Engineering, Vol. 2, No. 2, pp. 14-19, June. 2008.
  5. I. K. Chang and Ch. Y. Kim, “On the design and test for the 150 Gallon composite external fuel tank,” Journal of Aerospase System Engineering, Vol. 1, No. 4, pp. 22-27, December. 2007.
  6. S. Gond, Akhilesh, A. Singh and V. Sharma, “Design and analysis of the pressure vessel,” International Journal of Scientific & Engineering Research, Vol. 5, No. 4, pp. 939-942, April. 2014.
  7. J. S. Lee and K. M. Jang, "A study on the propensity for the deformation and failure of a small pressurized cylinder," The Korean Institute of Gas, Vol. 23, No. 3, pp.146-149, September. 2014.
  8. B. S. U. SoYul and D. N. SoYul, Standard Mechanical Design Chart Handbook, 5th ed, Jung-gu, Seoul: Daekwang Seorim, 2009.
  9. D, J, Choi, The Development of structural design and manufacturing for cryogenic Storage Tank, Master Thesis, Korea Maritime and Ocean University, Busan, Oct. 2005.
  10. 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, Part B, Nov. 2000.