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A Study on the Accident Consequences of High Pressure Pipelines by Applying Reduction Factors

감소인자 적용에 따른 고압가스배관의 사고피해영향에 관한 연구

  • Lee, Dong Hyuck (Department of chemical Engineering, Kwangwoon University) ;
  • Jung, Sang Yong (Department of chemical Engineering, Kwangwoon University) ;
  • Ko, Sang Wook (Department of chemical Engineering, Kwangwoon University) ;
  • Kim, Min Seop (Department of chemical Engineering, Kwangwoon University) ;
  • Ko, Jae Wook (Department of chemical Engineering, Kwangwoon University)
  • Received : 2012.07.11
  • Accepted : 2012.08.13
  • Published : 2012.10.31

Abstract

It becomes a more and more common practice to build facilities bigger and more integrated in an effort to optimize the process within limited resources and spaces. As the capacity of facilities increases, so does the flow rate and pressure. This in turn leads to a high consequence of accident. Not only are these facilities vulnerable to leakage because of their high pressure, but also subsequent fire and explosion can be threatening. For these reasons, there is an urgent need to come up with solutions to assess and minimize the damage from an accident. The Quantitative Risk Assessment(QRA) is one of the most efficient ways to solve problems on pressurized pipelines. The QRA can be re-enforced by applying reduction factors. In this study various types of accidents in a pressurized pipeline were evaluated. The damage from accidents were computed, then. Finally the reduction factors were very effective to decrease consequences of high pressure pipeline accidents.

한정된 자원과 공간에서 효율을 증가시키기 위해 설비가 고도화와 대형화되는 추세이다. 이에 따라 공정 내에 처리 용량이 증가하여 배관에 흐르는 유체의 유량과 압력 또한 높아지고 있으며 사고의 위험성 또한 높아지고 있다. 특히 고압가스는 누출 가능성이 높으며 누출시 폭발이나 화재로 인한 큰 피해를 줄 수 있다. 이러한 이유로 고압가스배관에 대한 정량적 위험성 평가(Quantitative Risk Assessment) 연구가 활발히 이루어지고 있다. 하지만 정량적 위험성 분석시 지형지물 등으로 인한 차폐효과와 같이 사고영향을 감소시키는 요인에 대한 연구는 그다지 이루어지고 있지 않는 실정이다. 따라서 이 연구에서는 고압가스배관에서 발생할 수 있는 사고 유형과 그에 따른 피해를 계산하고 감소인자 적용에 따른 피해 감소효과를 분석하였다.

Keywords

References

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Cited by

  1. Risk-based underground pipeline safety management considering corrosion effect vol.342, 2018, https://doi.org/10.1016/j.jhazmat.2017.08.029
  2. Consequence Analysis for Release Scenario of Buried High Pressure Natural Gas Pipeline vol.18, pp.3, 2014, https://doi.org/10.7842/kigas.2014.18.3.67