Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Verification on Separation Distance Criteria when Transporting Dangerous Goods in Korea Railroad

국내 철도 위험물 운송 시 격리차 운영기준 안전성 검증

  • Lee, Byeongwoo (Department of Environmental and Safety Engineering, Ajou University) ;
  • Park, Dasung (Department of Environmental and Safety Engineering, Ajou University) ;
  • Kang, Taesun (Department of Health and Safety Engineering, Semyung University) ;
  • Jung, Seungho (Department of Environmental and Safety Engineering, Ajou University)
  • 이병우 (아주대학교 환경안전공학과) ;
  • 박다성 (아주대학교 환경안전공학과) ;
  • 강태선 (세명대학교 보건안전공학과) ;
  • 정승호 (아주대학교 환경안전공학과)
  • Received : 2018.12.13
  • Accepted : 2019.03.19
  • Published : 2019.04.30
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Abstract

After the Tianjin Port explosion on 2015, it is highlighted that securing safety for dangerous goods in Korea and try to establish safety standards for railroad dangerous substances transport. In Korea, the regulation for the transport of dangerous goods is stipulated to need 3 buffer cars. However, It is inefficient that 3 buffer cars. because 3 buffer cars, increase transportation too much costs in transit and it is too strict compared to other country rules. The purpose of this study was to improve transportation efficiency by mitigating the criteria for isolated railroads through rational safety assessment. In order to verify this, we used a risk assessment software which is PHAST 7.2 developed by DNV GL. We calculated safety distances that could prevent ignitions setting up scenarios when relief system work installed on a train loaded with propylene, nonane. As a result, we confirmed that buffer cars can be reduced from three to one. This result would be implemented in the application of Korail.

Keywords

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Fig. 1. Tianjin explosions, Tianjin, China, 2015.

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Fig. 2. Blue print of Electric Locomotive.

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Fig. 3. Railroad of dangerous substances transport.

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Fig. 4. Sideview of LFL 20,000 ppm endpoint distance release from propylene relief system.

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Fig. 5. Sideview of LFL 10,000 ppm endpoint distance release from propylene relief system.

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Fig. 6. Sideview of LFL 5,000 ppm endpoint distance release from propylene relief system.

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Fig. 7. Sideview of LFL 8,000 ppm endpoint distance release from nonane relief system.

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Fig. 8. Sideview of LFL 4,000 ppm endpoint distance release from nonane relief system.

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Fig. 9. Sideview of LFL 2,000 ppm endpoint distance release from nonane relief system.

Table 1. Transport status and analysis conditions of propylene and oil (aircraft, kerosene)

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Table 2. Material information of JP-8, Kerosene, Octane, Nonane, Dodecane

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Table 3. Scenarios used in the model

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Table 4. Distance of propylene, nonane(LFL, 1/2 LFL, 1/4 LFL)

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References

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