Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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Experimental validations of fire-resistant materials for protecting LPG small storage tank from building fires

건물 화재 시 LPG소형저장탱크 보호용 화재 저항 재료 성능 실증

  • Kim, Seung-Hwan (Energy Safety Empirical Research Center, Korea Gas Safety Corporation) ;
  • Kim, Kyung-Sik (Energy Safety Empirical Research Center, Korea Gas Safety Corporation) ;
  • Heo, Seung-Geon (Energy Safety Empirical Research Center, Korea Gas Safety Corporation) ;
  • Lee, Jae-Hun (Energy Safety Empirical Research Center, Korea Gas Safety Corporation)
  • 김승환 (한국가스안전공사 에너지안전실증연구센터) ;
  • 김경식 (한국가스안전공사 에너지안전실증연구센터) ;
  • 허승건 (한국가스안전공사 에너지안전실증연구센터) ;
  • 이재훈 (한국가스안전공사 에너지안전실증연구센터)
  • Received : 2020.05.25
  • Accepted : 2020.07.29
  • Published : 2020.08.31
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Abstract

The purpose of this study is to validate thermal hinderance effects, i.e., feasibilities, of fire-proof structure for LPG tank exposed to fire from adjacent burning building. The panel materials suggested for the fire-proof structure are (1) 10 mm-thick wood, (2) wood with fireproof coating, (3) 75 mm-thick Expanded Polystyrene, (4) 75 mm-thick glass wool filled sandwich panel, and (5) 75 mm-thick autoclaved lightweight concrete. The square planar fire source of 1 ㎡, a matrix of nozzles releasing 120-140 g/s of LPG, is used to heat up the wall and the tank beyond, mimicking heat transfer from burning exterior wall finishes. The feasibility is tested by inspecting structural integrity after test, and then by examining temperatures at both sides of panels and tank's front surface as well as heat fluxes. As a result, it can be concluded that, among the suggested sample materials, fire-proof wall with ALC panel only showed the feasibility for explosion prevention with the proven evidences of structural integrity and least increase in temperature of tank.

본 연구의 목적은 화재사고가 발생한 건물에 인접한 LPG 탱크용 방화벽의 적용성을 검증하는 것이다. 제안된 방화벽 재료는 (1) 두께 10 mm 목재합판, (2) 내화도료를 도포한 목재합판, (3) 두께 75 mm Expanded Polystyrene, (4) 두께 75 mm 유리섬유 충진 샌드위치 판넬, (5) 두께 75 mm Autoclave Lightweight Concrete이다. 화원은 1 m 정사각형으로 120-140 g/s의 LPG를 균일하게 분사하여 방화벽과 후단의 탱크를 가열한다. 적용성은 시험 후 방화벽의 구조적 건전성 확인, 방화벽 양면 및 탱크표면 온도, 탱크 인근 복사열을 분석하여 판단한다. 그 결과, ALC 방화벽이 유일하게 구조 건전성을 유지하였고 저장탱크 온도를 가작 적게 상승시켜 폭발 방지 적용성을 확인하였다. 본 실험결과를 활용하여 방화벽의 성능평가 기준 마련에 필요한 핵심인자를 도출하였다.

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References

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