DOI QR코드

DOI QR Code

Cost-Benefit Analysis in order to Select the Reasonably Practical Risk Reduction Measures(RRMs) on High Pressure Urban Gas Pipelines

도시가스 고압배관의 합리적인 위험감소조치 선정을 위한 비용-편익분석

  • 류영돈 (한국가스안전공사) ;
  • 김영섭 (한국가스안전공사) ;
  • 이수경 (서울과학기술대학교 에너지환경대학원 가스공학과)
  • Received : 2010.08.17
  • Accepted : 2011.03.22
  • Published : 2011.04.30

Abstract

The purpose of CBA(cost-benefit analysis) in risk assessment is to show whether the benefits of implementing additional risk reduction methods(RRMs) derived through risk assessment outweigh its costs and it is proper to implement the methods. In this paper CBA has been conducted in order to select the most effective and reasonable RRM as implementing the RRM derived after QRA for the high pressure urban gas pipelines. As conducting QRA again by applying the derived RRMs, No. 10 measure which includes pipeline corrosion monitoring, MOV(motor operated valve) installation and the method to protect pipeline damage caused by third-party mechanical interference has showed the highest risk reduction effect. Also it has been considered to be reasonably practicable by conducting CBA and then is selected as the most effective and reasonable RRM on the objects of this paper.

위험성 평가에서 비용-편익분석의 목적은 위험성 평가를 통해 도출된 부가적인 위험감소조치의 편익이 그 조치를 수행하는 데 든 비용보다 많음을 확인하고, 그 조치를 이행하는 것이 적절함을 보여주는 데 있다. 본 논문에서는 도시가스 고압배관의 위험성 평가에 따라 도출한 위험감소조치를 이행함에 있어 가장 효과적이고 합리적인 조치를 선정하기 위하여 비용-편익 분석을 실시하였다. 도출한 위험감소조치를 적용하여 위험성 평가를 다시 실시한 결과, 배관부식방지조치, MOV 설치 및 타공사 방지조치를 하도록 한 10번 조치가 위험감소효과가 75 %로 가장 컸으며, 비용-편익 분석 결과 합리적으로 실행가능한 것으로 판단되어 본 논문의 연구대상 배관의 위험감소조치로 선정하였다.

Keywords

References

  1. John Spouge, A Guide To Quantitative Risk Assessment for Offshore Installations, DNV Technica, 1999.
  2. 류영돈, 곽채식, 김종모, 이경식, 이수경, "도시가스 고압배관 설치를위한 비용-편익분석에 관한 연구", 한국가스학회 추계학술발표회 논문집, pp. 113-119, 2008.
  3. HSE, "Guidance on 'as low as reasonably practicable' (ALARP) decisions in control of major accident hazards (COMAH), http://www.hse.gov.uk/comah/circular/perm12.htm
  4. 한국가스안전공사, "2000-11 도시가스고압배관의 안전성평가 지침", (2008)
  5. HSE, "Reducing risks, protecting people", http://www.hse.gov.uk/risk/theory/r2p2.pdf.
  6. HSE, Cost Benefit Analysis(CBA) checklist, http://www.hse.gov.uk/risk/theory/alarpcheck.htm.
  7. Revised Departmental Guidance, "Treatment of the Value of Preventing Fatalities and Injuries in Preparing Economic Analyses", (2007).
  8. NORSOK Standard, Z-013, Risk and Emergency Preparedness Analysis, Rev. 2, (2001).
  9. Francois Bellavance, Geoges Dionne, and Martin Lebeau, "The Value of a Statistical Life: A Meta- Analysis with a Mixed Effects Regression Model", Canada Research Chair in Risk Management Working paper 06-12, (2007).