Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Multi-Objective Optimization Study of Blast Wall Installation for Mitigation of Damage to Hydrogen Handling Facility

수소 취급시설 피해 저감을 위한 방호벽 설치 다목적 최적화 연구

  • Se Hyeon Oh (Department of Chemical Engineering, Chonnam National University) ;
  • Seung Hyo An (Department of Chemical Engineering, Chonnam National University) ;
  • Eun Hee Kim (Department of Chemical Engineering, Chonnam National University) ;
  • Byung Chol Ma (Department of Chemical Engineering, Chonnam National University)
  • 오세현 (전남대학교 화학공학부) ;
  • 안승효 (전남대학교 화학공학부) ;
  • 김은희 (전남대학교 화학공학부) ;
  • 마병철 (전남대학교 화학공학부)
  • Received : 2023.09.27
  • Accepted : 2023.12.01
  • Published : 2023.12.31
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Abstract

Hydrogen is gaining attention as a sustainable and renewable energy source, potentially replacing fossil fuels. Its high diffusivity, wide flammable range, and low ignition energy make it prone to ignition even with minimal friction, potentially leading to fire and explosion risks. Workplaces manage ignition risks by classifying areas with explosive atmospheres. However, the effective installation of a blast wall can significantly limit the spread of hydrogen, thereby enhancing workplace safety. To optimize the wall installation of this barrier, we employed the response surface methodology (RSM), considering variables such as wall distance, height, and width. We performed 17 simulations using the Box-Behnken design, conducted using FLACS software. This process yielded two objective functions: explosion likelihood near the barrier and explosion overpressure affecting the blast wall. We successfully achieved the optimal solution using multi-objective optimization for these two functions. We validated the optimal solution through verification simulations to ensure reliability, maintaining a margin of error of 5%. We anticipated that this method would efficiently determine the most effective installation of a blast wall while enhancing workplace safety.

Keywords

Acknowledgement

This research was supported by the Graduate School of Chemical Characterization hosted by the Korean Ministry of Environment

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