한국응용과학기술학회지 (Journal of the Korean Applied Science and Technology)

  • 제36권4호
  • /
  • Pages.1080-1087
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  • 2019
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  • 1225-9098(pISSN)
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  • 2288-1069(eISSN)
한국응용과학기술학회 (The Korean Society of Applied Science and Technology)
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전산유체역학을 이용한 화학공정 수소가스 누출 사고 시뮬레이션

Simulation of Hydrogen Gas Leak in Petrochemical Process using Computational Fluid Dynamics (CFD)

  • 송인호 (부산대학교 화공생명공학부) ;
  • 한상일 (창원대학교 화공시스템공학과) ;
  • 황규석 (부산대학교 화공생명공학부)
  • Song, Inho (School of Chemical & biomolecular Engineering, Pusan National University) ;
  • Han, Sangil (Department of Chemical Engineering, Changwon National University) ;
  • Hwang, Kyu-Suk (School of Chemical & biomolecular Engineering, Pusan National University)
  • 투고 : 2019.09.11
  • 심사 : 2019.12.10
  • 발행 : 2019.12.30
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초록

화학물질 취급공정에서 발생하는 화학사고를 예방하기 위해 기본적으로 요구되는 위험성 분석 (Risk Analysis)시 공정의 특성을 잘 반영하는 것이 매우 중요하다. 본 연구에서는 CFD (computational fluid dynamics) 언어를 활용하여 화학공장의 고위험 공정을 대상으로 신뢰성 있는 사고 피해 결과를 분석하고 안전확보 방안을 제시하였다. 이를 위한 방법론적 사례로 화학공장의 RHDS (잔사유수첨탈황공정) 공정을 대상으로 실제공정의 운전조건, 설비 및 장치의 형태와 밀집도, 대기상태, 바람의 영향 등 여러 복합적 변수를 고려하여 FEA (Finite Element Analysis)와 CFD 시뮬레이션을 수행하여 확산, 폭발 시뮬레이션을 수행하였으며, 3D Scanning 기술, 누출공 크기 산정, 누출량 산정을 위한 CFD 적용 가능성을 검토하였다.

For a risk analysis in a chemical process, it is important to reflect correctly the characteristic properties of the target process. In this study, computational fluid dynamics (CFD) was adopted for the advanced risk analysis in a residual hydro desulfurization (RHDS) process by considering operation condition, layout of instruments and facilities, atmospheric condition, and wind direction. Release and explosion simulations for the RHDS by using FEA (Finite Element Analysis) and CFD showed the applicability of 3D scanning methods for estimation of release hole size and release amount.

키워드

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