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물질특성 및 운전조건을 고려한 증기상 물질의 2차 누출에 따른 폭발위험장소 범위 선정에 관한 연구

A Study on Determination of Range of Hazardous Area Caused by the Secondary Grade of Release of Vapor Substances Considering Material Characteristic and Operating Condition

  • 서민수 (인하대학교 환경안전융함전공) ;
  • 김기석 (인하대학교 환경안전융함전공) ;
  • 황용우 (인하대학교 환경안전융함전공) ;
  • 천영우 (인하대학교 환경안전융함전공)
  • Seo, Minsu (Dept. of Environmaental Technology & Safety Technology Convergence, Inha University) ;
  • Kim, Kisug (Dept. of Environmaental Technology & Safety Technology Convergence, Inha University) ;
  • Hwang, Yongwoo (Dept. of Environmaental Technology & Safety Technology Convergence, Inha University) ;
  • Chon, Youngwoo (Dept. of Environmaental Technology & Safety Technology Convergence, Inha University)
  • 투고 : 2018.03.09
  • 심사 : 2018.07.31
  • 발행 : 2018.08.31

초록

현재 KS Code 등 국내규정에서는 폭발위험장소의 범위를 계산하는 방법이 명확하게 나타나지 않아, 정확한 범위 선정을 위해서는 확산 모델링 해석을 이용하여야 한다. 본 연구애서는 대표적인 물질과 운전조건을 활용하여 확산 모델링에 비하여 간편하면서도 비교적 합리적인 폭발위험장소의 범위를 산정하는 방법을 제시하고자 하였다. 현재 시행되고 있는 국내외 표준을 바탕으로 폭발하한계(LFL, Lower Flammable Limit)까지 거리에 영향을 미치는 변수를 선정하였다. 총 16종의 인화성물질을 대상으로 물질변수, 운전변수, 기상조건에 대하여 모델링을 진행하였으며, 통계분석을 통해 영향을 미치는 변수를 선별하였다. 선별된 변수를 이용하여 폭발위험장소의 범위 선정을 위한 3단계 분류화 방법(3Step Classification Method)을 작성하였다.

Currently, local regulations, such as KS Code, do not clearly specify how to calculate the range of hazardous area, so the dispersion modeling program should be used to select dispersion. The purpose of this study is to present a methodology of determining the range of hazardous area which is simpler and more reasonable than modelling by using representative materials and process conditions. Based on domestic and overseas regulations that are currently in effect, variables affecting distance to LFL(Lower Flammable Limit) were selected. A total of 16 flammable substances were modelled for substance variables, process conditions variables, and weather conditions variables, and the statistical analysis selected the variables that affect them. Using the selected variables, a three-step classification method was prepared to select the range of locations subject to explosion hazard.

키워드

참고문헌

  1. KS C IEC 60079-10-1, "장소 구분 - 폭발성 가스 분위기, 26-81, (2015)
  2. IEC 60079-10-1/Ed2 : Explosive atmospheres - Part 10-1, "Classification of areas -Explosive gas atmospheres", 27-91, (2013)
  3. EI Part 15, "Area classification for installations handling flammable fluids 4th edition", 28-64, (2015)
  4. NFPA 497, "Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas", 5-22, (2017)
  5. API, R.P. 505, "Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1,and Zone 2, 10-21, 89-103, (2012)
  6. Wang, B., Chen, B., & Zhao, J. : "The real-time estimation of hazardous gas dispersion by the integration of gas detectors, neural network and gas dispersion models. Journal of Hazardous Materials", Journal of Hazardous Materials, 433-442, (2015)
  7. C.J.H. van den Bosch, R.A.P.M. Weterings, "TNO Yellow Book", 2.21-2.26, (2005)
  8. 고압가스안전관리법 시행규칙, 제2조 정의, (2018)
  9. Noh, H.J., and Yu, J.Y., "Multivariate Analysis Theory and Practice using SPSS & EXCEL, 260-301, (2016)
  10. Yim, J .P., and Chung, C. B., "Validity Review on Classification of Explosion Hazardous Area using Hypothetic Volume", KOSOS, 29(6), 68-75, (2014)
  11. Yim, J .P., and Chung, C. B., "A Study on Classification of Explosion Hazardous Area for Facilities using Lighter-than-Air Cases", KOSOS, 29(2), 24-30, (2014)
  12. Kim, J. H., and Lee, M. K., and Lee, J. H., and Lee, Y.J., "A Compr ehensive Consider ation about Hazardous Ar ea Classification of Gas Facilities", KIGAS, 6, 74-74