IDENTIFYING HAZARD ZONES AT LPG STATION "DAKI PETROL"

Abstract

Technological processes, either in regular operation or in case of an accident, may produce flammable and explosive gases and vapours which can be the cause of fire and explosion. In case of major accidents involving the vessels with flammable gases, those gases leak and evaporate rapidly thus creating the cloud of mixtures (fireballs). Ignition of such mixture is initiated by ignition sources, and it may be the cause of explosion and detonation. The consequences of the combustion of flammable gases and vapours in unlimited atmosphere go beyond the limits of typical fires. These activities are the origins of environmental hazards in facilities endangered by flammable and explosive gases and vapours, or toxic products of combustion, heat radiation and shock wave. There is a need to develop the methods for identifying threat zones which would serve to reduce the risk of vulnerability to the acceptable level. Therefore, the subject of the research is the development of methodologies for estimating threat zones and application of ALOHA software package that can be used to determine the threat zones which are the consequence of gases and vapours clouds, as well as thermal radiation of shock wave and toxic products of combustion. Key words:hazard zones, fire, explosion.