한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제27권5호
  • /
  • Pages.105-114
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  • 2013
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  • 1225-0767(pISSN)
  • /
  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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단순 형상 해양플랜트 내의 수소의 분산 시뮬레이션

Dispersion Simulation of Hydrogen in Simple-shaped Offshore Plant

  • 석준 (삼성중공업(주) 종합설계) ;
  • 허재경 (노르웨이선급협회) ;
  • 박종천 (부산대학교 조선해양공학과)
  • 투고 : 2013.06.26
  • 심사 : 2013.10.16
  • 발행 : 2013.10.31
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초록

Lots of orders of special vessels and offshore plants for developing the resources in deepwater have been increased in recent. Because the most of accidents on those structures are caused by fire and explosion, many researchers have been investigated quantitatively to predict the cause and effect of fire and explosion based on both experiments and numerical simulations. The first step of the evaluation procedures leading to fire and explosion is to predict the dispersion of flammable or toxic material, in which the released material mixes with surrounding air and be diluted. In particular turbulent mixing, but density differences due to molecular weight or temperature as well as diffusion will contribute to the mixing. In the present paper, the numerical simulation of hydrogen dispersion inside a simple-shaped offshore structure was performed using a commercial CFD program, ANSYS-CFX. The simulated results for concentration of released hydrogen are compared to those of experiment and other simulation in Jordan et al.(2007). As a result, it is seen that the present simulation results are closer to the experiments than other simulation ones. Also it seems that the hydrogen dispersion is closely related to turbulent mixing and the selection of the turbulence model properly is significantly of importance to the reproduction of dispersion phenomena.

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참고문헌

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