Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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A Study on the Reasonable Estimation of Consequence of Chemical Release

화학사고 피해영향 범위의 합리적 산정방안에 대한 연구

  • Cho, Guysun (Hoseo University) ;
  • Lim, Juntaig (Department of Safety & Health Convergence Engineering, Soongsil University) ;
  • Han, Jeongwoo (Department of Safety & Health Convergence Engineering, Soongsil University) ;
  • Baek, Eunsung (Department of Safety & Health Convergence Engineering, Soongsil University) ;
  • Yu, Wonjong (Department of Safety & Health Convergence Engineering, Soongsil University) ;
  • Park, Kyoshik (Department of Safety & Health Convergence Engineering, Soongsil University)
  • Received : 2020.07.09
  • Accepted : 2020.09.21
  • Published : 2020.10.31
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Abstract

In this study, the damage impact range in the case of a hydrofluoric acid leak accident was predicted using formula calculation, impact assessment simulations, and CFD simulations, and the results were compared and analyzed with the actual environmental impact report. Formula calculation was performed by using the leak source model and diffusion model. Impact assessment simulation was performed by KORA provided by the Korean Ministry of Environment, ALOHA by the United States Ministry of Environment, and PHAST, which is relatively widely used among commercialization programs, and the STAD-CMM+program for CFD simulation. Was utilized. Considering convenience, speed, acceptability, and economics from the user's perspective, ALOHA and KORA were the most appropriate methods for predicting the impact of hydrofluoric acid leakage. In addition, the results of this study will help to reduce unnecessary regulations in the process of government policy development and optimize the investment in the safety field of the company, effectively utilizing the limited resources of the government and the company.

불산 누출사고 발생 시 피해영향범위 예측을 수계산, 영향평가 시뮬레이션, CFD 시뮬레이션을 활용하여서 예측하고 실제 환경영향보고서와 비교·분석하였다. 수계산은 누출원모델과 확산모델을 활용하여서 계산하였으며 영향평가 시뮬레이션은 우리나라 환경부에서 제공하는 KORA, 미국 환경부의 ALOHA, 상용화 프로그램 중 비교적 널리 사용 중인 PHAST를 사용하였고, CFD 시뮬레이션은 STAR-CMM+ 프로그램을 활용하였다. 사용자 입장에서 편리성, 신속성, 수용성, 경제성 등을 고려할 때 불산 누출사고 영향예측에 가장 적절하게 사용할 수 있는 프로그램은 ALOHA와 KORA 이었다. 아울러, 본 연구결과는 정부의 정책개발과 기업의 안전부서에서 피해영향범위 프레임워크를 선정하고 불필요한 규제, 불필요한 안전투자를 최적화하여 정부 또는 기업의 제한된 자원을 효율적으로 활용하는 데 도움이 될 것으로 기대된다.

Keywords

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