Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
권호 표지
DOI QR코드

DOI QR Code

Area Classification of Hazardous Gas Facility According to KGS GC101 Code

KGS GC101을 통한 가스시설 폭발위험장소의 설정

  • 김정환 (한국가스안전공사 가스안전연구원) ;
  • 이민경 (한국가스안전공사 가스안전연구원) ;
  • 길성희 (한국가스안전공사 가스안전연구원) ;
  • 김영규 (한국가스안전공사 가스안전연구원) ;
  • 고영규 (한국가스안전공사 가스안전연구원)
  • Received : 2019.07.16
  • Accepted : 2019.08.25
  • Published : 2019.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

Technical practice code, KGS GC101 2018, for explosion hazard area selection and distance calculation of gas facility was enacted and implemented from July 12, 2018. This code includes whole contents of IEC60079-10-1 2015 (Explosive atmospheres Part 10-1: Classification of areas - Explosive gas atmospheres), and clarifies the interpretation of ambiguous standards or adds guidelines for standards. KGS GC101 is a method for classifying explosion hazard place types: (1) Determination of leak grade (2) Determination of leakage hole size (3) Determination of leakage flow (4) Determination of dilution class (5) Determination of ventilation effectiveness, finally (6) Determination of danger place (7) Explosion The range of dangerous places can be estimated. In order to easily calculate this process, the program (KGS-HAC v1.14, C-2018-020632) composed by Visual Basic for Application (Excel) language was produced by Korea Gas Safety Corporation. We will discuss how to use codes and programs to select and set up explosion hazard zones for field users.

폭발위험장소의 선정과 거리계산에 대한 상세기술기준 KGS GC101 2018(가스시설의 폭발위험장소 종류 구분 및 범위 산정에 관한 기준)이 제정되어, 2018년 7월 12일부터 시행되었다. IEC60079-10-1 2015 (Explosive atmospheres Part 10-1: Classification of areas - Explosive gas atmospheres)에 대한 전수 내용을 정리하고, 모호한 기준의 해석이나 기준에 대한 가이드라인을 추가하여 제정하였다. KGS GC101은 폭발위험장소 종류의 구분을 위한 방법으로 (1)누출등급의 결정 (2)누출 홀 크기의 결정 (3)누출유량의 결정 (4)희석등급의 결정 (5)환기유효성의 결정을 통하여 최종적으로 (6)위험장소의 결정 (7) 폭발위험장소 범위의 산정을 할 수 있다. 이 과정을 쉽게 계산하기 위하여 Visual Basic for Application (Excel) 언어로 구성한 프로그램(KGS-HAC, C-2018-020632)을 한국가스안전공사에서 제작하였고, 현재 시범 사용 중(2019년 4월 1일 현재 v1.14)에 있다. 그럼에도 불구하고 현장에서 어려워하여, 본 논문을 통하여 코드 및 프로그램의 사용법을 설명하는 것으로 해결코자 한다.

Keywords

References

  1. Mannan, S., Lee's Loss Prevention in the Process Industries, Butterworth-Heinemann, USA, (2014)
  2. Ivings, M.J., Clarke, S., Gant S.E., Fletcher, B., Heather, A., Pocock, D.J, Pritchard, D.K, Santon, R., Saunders, C.J, Area classification for secondary releases from low pressure natural gas systems, RP630, Research Report, Health and Safety Laboratory, (2008)
  3. KGS GC101, Classification Code for Explosive Hazardous Area on Gas Facility, Korea Gas Safety Corporation, Republic of Korea, (2018)
  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, National Fire Protection Association, USA, (2017)
  5. API RP 505, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone O, Zone 1, and Zone 2, American Petroleum Institute, USA, (2018)
  6. IGEM/SR/25 Edition 2, Hazardous area classification of natural gas installation, Institution of Gas Engineers & Managers, UK, (2013)
  7. EI-15 Edition 4, Model code of safe practice. Part 15 - Area classification for installations handling flammable fluids, Energy Institute, UK, (2015)
  8. IEC-60079-10-1 Edition 2, Explosive atmospheres- Part 10-1: Classification of areas-Explosive gas atmosphere, International Electrotechnical Commission, Switzerland, ( 2015)
  9. Crowl, D.A., Louvar, J.F., Chemical process safety: fundamentals with applications, Prentice Hall, USA, (2011)
  10. Green, D.W., Southard, M.Z., Perry's chemical engineer's hand book 9th edition, McGraw-Hill Education, USA, (2018)
  11. NIST webbook, https://webbook.nist.gov/chemistry/, National Institute of Standards and Technology
  12. Image from http://agaus.com.au/c4400-compressed-fibre-gasket-w-passbar/
  13. Image from https://www.equalseal.com/product-p/eqsw-150lb-1200-s.htm
  14. Image from https://laurenlollienelson.com/15-reasons-why-people-love-ring-joint-flange- ring-joint-flange/97451/ring-type-joint-flanges-ss-ring-type-joint-flanges-stainless-steel/
  15. Image from http://www.betamachinery.com/services/small-bore-connections-sbc-assessment
  16. Statistical wind data during a year from https://www.weather.go.kr/weather/climate/average_30years.jsp
  17. ASHRAE-HAVC(heating, ventilation, air-conditioning), ASHRAE Handbook, American Society of Heating, Refrigerating and Air-Conditioning Engineers, USA, (2017)
  18. Santamouris, M., Wouters, P., Building Ventilation - The state of the Art, Routledge, UK, (2006)
  19. KGS-HAC program(C-2018-020632), Korea Gas Safety Corporation-Hazardous Area Classification, Korea Gas Safety Corporation, Republic of Korea, 2018, contact to corresponding author