Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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A Study on the Overpressure Estimation of BLEVE

BLEVE로 인한 과압 예측에 관한 연구

  • Kim In-Tae (Korean Fire Protection Association) ;
  • Kim In-Won (Department of Chemical Engineering, Konkuk University) ;
  • Song Hee-Oeul (Department of Chemical Engineering, Konkuk University)
  • Published : 2000.03.01
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Abstract

Explosion Quantities and flashing mass resulting from the variation of temperature are calculated by a computer program, BLEVE ESTIMATOR, to carry out the risk assessment of BLEVE. The damages caused by the BLEVE are estimated under the explosion of the simulation condition similar to the Puchun LP gas station accident, and the results are compared with the commercial program SAFER of Dupont CO. Explosion quantities and flashing mass increase exponentially with the increase of explosion temperature. These values for propane are relatively higher than those for n-butane. In conditions of higher vessel temperature, vessel pressure, and liquid ratio of containment, higher overpressures are calculated.

BLEVE로 인한 위험을 평가하기 위한 프로그램, BLEVE ESTIMATOR를 이용하여 온도에 따른 폭발량과 Flashing mass를 계산하였고, 부천 가스충전소의 사고를 모델로 피해를 예측하였으며, 상용프로그램인 Dupont의 SAFER 프로그램과 비교하였다. 폭발량과 Flashing mass는 폭발온도의 증가에 따라 지수함수로 증가하였으며, Propane이 n-Butane보다 상대적으로 높게 나타났다. 용기의 온도, 압력, 충전비가 높을수록 Overpressure가 높게 나타났다.

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