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HEAT RELEASE RATE AS A PARAMETER FOR FIRE SPREAD – A CASE STUDY ; BRZINA OSLOBAĐANJA TOPLOTE KAO PARAMETAR KOJI UTIČE NA ŠIRENJE POŽARA – NUMERIČKA STUDIJA
Indoor fires very often may cause great material damage and endanger human lives. The heat produced by fire affects the heating and ignition of surrounding flammable materials, as well as the heating of the building structure, causing its damage. It is well known that fire spread mostly depends on flammability and quantity of surrounding material, but small differences in the amount of fuel can significantly affect the speed of fire spread, and consequently, rate of heat released by fire. In this paper, the influence of the heat release rate on fire spreading is shown. The Large Eddy Simulation method of Fire Dynamics Simulator software package has been used to investigate the prediction of fire dynamics in a compartment. Numerical results show that the fire dynamics in the compartment is largely dependent on the quantity of fire load mass and the heat release rate during the fire. ; Požari u zatvorenom prostoru vrlo često mogu prouzrokovati veliku materijalnu štetu i ugroziti ljudske živote. Toplota oslobođena tokom požara utiče na zagrevanje i paljenje okolnih zapaljivih materijala, kao i na zagrevanje građevinske konstrukcije, prouzrokujući njeno oštećenje. Poznato je da širenje požara najviše zavisi od zapaljivosti i količine okolnog materijala. Male razlike u količini zapaljivog materijala mogu značajno uticati na brzinu širenja požara, a samim tim i na brzinu oslobađanja toplote tokom požara. U ovom radu prikazan je uticaj brzine oslobađanja toplote na širenje požara. Metoda simulacije velikih vrtloga softverskog paketa Fire Dinamics Simulator je korišćena za istraživanje predviđanja dinamike požara u zatvorenom prostoru. Numerički rezultati pokazuju da dinamika požara u velikoj meri zavisi od količine mase požarnog opterećenja i brzine oslobađanja toplote tokom požara.
HEAT RELEASE RATE AS A PARAMETER FOR FIRE SPREAD – A CASE STUDY ; BRZINA OSLOBAĐANJA TOPLOTE KAO PARAMETAR KOJI UTIČE NA ŠIRENJE POŽARA – NUMERIČKA STUDIJA
Indoor fires very often may cause great material damage and endanger human lives. The heat produced by fire affects the heating and ignition of surrounding flammable materials, as well as the heating of the building structure, causing its damage. It is well known that fire spread mostly depends on flammability and quantity of surrounding material, but small differences in the amount of fuel can significantly affect the speed of fire spread, and consequently, rate of heat released by fire. In this paper, the influence of the heat release rate on fire spreading is shown. The Large Eddy Simulation method of Fire Dynamics Simulator software package has been used to investigate the prediction of fire dynamics in a compartment. Numerical results show that the fire dynamics in the compartment is largely dependent on the quantity of fire load mass and the heat release rate during the fire. ; Požari u zatvorenom prostoru vrlo često mogu prouzrokovati veliku materijalnu štetu i ugroziti ljudske živote. Toplota oslobođena tokom požara utiče na zagrevanje i paljenje okolnih zapaljivih materijala, kao i na zagrevanje građevinske konstrukcije, prouzrokujući njeno oštećenje. Poznato je da širenje požara najviše zavisi od zapaljivosti i količine okolnog materijala. Male razlike u količini zapaljivog materijala mogu značajno uticati na brzinu širenja požara, a samim tim i na brzinu oslobađanja toplote tokom požara. U ovom radu prikazan je uticaj brzine oslobađanja toplote na širenje požara. Metoda simulacije velikih vrtloga softverskog paketa Fire Dinamics Simulator je korišćena za istraživanje predviđanja dinamike požara u zatvorenom prostoru. Numerički rezultati pokazuju da dinamika požara u velikoj meri zavisi od količine mase požarnog opterećenja i brzine oslobađanja toplote tokom požara.
HEAT RELEASE RATE AS A PARAMETER FOR FIRE SPREAD – A CASE STUDY ; BRZINA OSLOBAĐANJA TOPLOTE KAO PARAMETAR KOJI UTIČE NA ŠIRENJE POŽARA – NUMERIČKA STUDIJA
Zigar, Darko N. (author) / Pesic, Dusica J. (author) / Blagojevic, Milan Đ. (author)
2020-12-10
doi:10.22190/FUWLEP2002101Z
Facta Universitatis, Series: Working and Living Environmental Protection; Vol. 17, No 2, 2020; 101-112 ; 2406-0534 ; 0354-804X
Article (Journal)
Electronic Resource
English