누출사고 발생시 사고영향 완화를 위한 임시저장설비 모델링에 관한 연구

Abstract

The leakage accident is one of the most important accident sources. After Gumi hydrogen fluoride leakage accident triggering massive losses occurred in 2012, a few regulations on safety and environment have been enhanced. Therefore, many companies and organizations have been interested in mitigation systems to minimize the loss of a leakage accident. However, there have been few researches and scientific analysis to evaluate the performance of a mitigation system and this issue is a big obstacle to adopt the mitigation system. Thus, the design and simulation of mitigation systems should be urgently developed.

This study aims to design the mitigation system for handling a leakage accident of a storage tank. The basic concept of this system is that a leakage material is drained to temporary storage facility installed under the ground, while the material in a storage tank is transfered to a reserve tank by a pump at the same time. To evaluate the efficacy of this system. hydrogen fluoride, benzene and ethylene oxide storage tanks are tested. Throughout the simulation result, it can be concluded that a proposed mitigation system can reduce the dispersion area of materials as well as the leakage amount.