The effect of parameters on the consequence of the flash fire accident by the release of heavy gas(in this study, xylene vapor) was analyzed. Simulation results showed that the distance with the lower flammable limit(XLFL) was increased with the increase of the release hole diameter. For the case of the elevated release, XLFL was increased with the increase of the wind speed and the release height, but XLFL was not affected by the wind speed for the release on the ground level. Therefore, the accident in the elevated release was more dangerous than the release on the ground level. In this condition, the release height had more effect on XLFL at the night time than the daytime and in the urban area than the rural area.

• 김태옥 | Kim, Tae-Ok
• 이헌창 | Lee, Hern-Chang
• 함병호 | Ham, Byeong-Ho
• 조지훈 | Cho, Ji-Hoon
• 신동일 | Shin, Dong-Il
• 장서일 | Jang, Seo-Il