Vol. 6, No 1, 2009 pp. 55 - 64
UDC 621.6.02:519.87:627.038

MODELLING OF CLOUD EFFECTS OF FLAMMABLE GASES AND FUMES
Predrag Stanković, Ivan Krstić, Emina Mihajlović
Faculty of Occupational Safety, University of Nis, Serbia

Abstract. During a technological process, either during regular work or in case of an accident, there is a possibility of a fire and explosion owing to hazardous liquids leaking and, flammable and explosive gases being produced. The impact on people and the environment is particularly emphasized when flammable and toxic fumes are formed. In this sense, the subject of the paper is the modelling and simulation of the effects occurring in those conditions with the purpose of designating a safe zone. Based on possible accident scenarios and using a mathematical model, it is possible to assess the ecological risk, where real-time models generate an image of dangerous areas.
Key Words: flammable gases and fumes, mathematical model, simulation, safe zone

MODELIRANJE EFEKATA OBLAKA ZAPALJIVIH GASOVA I PARA
Pri odvijanju tehnoloških procesa može, u redovnom radu ili u slučaju udesa, doći do ispuštanja opasnih tečnih materija, izdvajanja zapaljivih i eksplozivnih gasova i para i stvaranja uslova za nastanak požara i eksplozija. Posebno je izražen i uticaj na ljude i životnu sredinu, kada dolazi do formiranja zapaljivog i toksičnog oblaka gasova i para. U tom smislu, predmet rada je modeliranje i simulacija efekata koji tom prilikom nastaju u cilju određivanja bezbedne zone. Na bazi mogućih scenarija udesnog događaja, korušćenjem matematičkog modela, procenjuju se ekološki rizik, pri čemu modeli u realnom vremenu daju sliku ugroženih zona.
Ključne reči: zapaljivi gasovi i pare, matematički model, simulacija, bezbedna zona