Study of the Analyzing the Effect of Releasing LPG in the Environment with Different Wind Velocity Using ALOHA

Abstract

LPG gas is one of the substances with a high potential for environmental harm that is now widely employed in industry and other applications. In this study, the ALOHA model was utilized with varied wind speeds to assess the impact of releasing LPG into the environment, which causes a negative effect on human health. The purpose of this study is to show the toxic and flammable area of the affected area from the released LPG vapor cloud. The red zone (AEGL-3) of the toxic and flammable vapor cloud from the released gas remains constant with increasing ambient wind velocity for each LPG property (propane (C3H8), butane (C4H10), and isobutene (C4H10)). The yellow zone (AEGL-1) of the toxic vapor cloud from the released propane (C3H8), butane (C4H10), and isobutene (C4H10) gas ranged from 25–30 m, 21–33 m, and 21–33 m, whereas the orange zone (AEGL-2) ranged from 11-15 m, 11–17 m, and 11–17 m. The flammable vapor cloud from the released propane (C3H8), butane (C4H10), and isobutene (C4H10) gas ranged from 49-54m, 45-64m, and 43-60m, respectively, for the yellow zone (AGEL-1) while in orange zone (AGEL-2) 19-22m, 18-28m, and 16-26m. On the other hand, the orange zone (AEGL-2) is a little bit decreasing with increasing wind speed. But yellow zone (AEGL-1) is more decreasing than the red zone (AEGL-3) and orange zone (AEGL-2). The flammable area of the isobutene (C4H10) is decreased than the propane (C3H8) and butane (C4H10). This study may be considered for future risk assessment in LPG plants with varied ambient wind speeds for minimizing the potential impact of LPG release.