A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Simulacija širenja vatre između stambenih zgrada u odnosu na sigurnu udaljenost ; Simulation of fire spread between residential buildings regarding safe separation distance
Određivanjem optimalne sigurne udaljenosti između zgrada bave se mnoge sigurnosne i ekonomske analize. Općenito je poznato da se povećanjem razmaka povećava zaštita od širenja vatre na susjednu zgradu, ali se smanjuje isplativost urbanih rješenja. Iz tog se razloga u ovom radu koristi programski paket CFD Large Eddy Simulation method of Fire Dynamics Simulator kako bi se odredila optimalna udaljenost potrebna da bi se spriječilo širenje vatre izmđu dviju stambenih grada okrenutih jedne drugoj. Analizirali su se minimalni uvjeti potrebni da bi se zapalile zavjese na prozorima zgrade izložene vatri smještenoj na raznim udaljenostima (3,5 m, 4,0 m i 4,5 m). Dobiveni rezultati pokazuju da se na udaljenosti od 4,5 m vatra ne širi i da je ulazna količina topline na površini zavjese veća od vrijednosti kritične količine topline od 12,6 kW/m2 prihvaćene u mnogim graditeljskim kodeksima. ; Determination of optimal safe distance between buildings is a task of many safety and economic analyses. Generally, it is known that increasing separation distance increases fire protection of an adjacent building, but decreases the cost effectiveness of urban solutions. For this reason, CFD Large Eddy Simulation method of Fire Dynamics Simulator software package has been used in this paper to determine optimal separation distance required for preventing fire spread between two residential buildings facing each other. The minimum conditions necessary for ignition of the window curtains in the fire-exposed building located at different building distances (3,5 m, 4,0 m and 4,5 m) were analysed. The obtained results show that the fire does not spread at the distance of 4,5 m, and that the incident heat flux at the curtain surface is higher than the critical heat flux value of 12,6 kW/m2 adopted in many building codes.
Simulacija širenja vatre između stambenih zgrada u odnosu na sigurnu udaljenost ; Simulation of fire spread between residential buildings regarding safe separation distance
Određivanjem optimalne sigurne udaljenosti između zgrada bave se mnoge sigurnosne i ekonomske analize. Općenito je poznato da se povećanjem razmaka povećava zaštita od širenja vatre na susjednu zgradu, ali se smanjuje isplativost urbanih rješenja. Iz tog se razloga u ovom radu koristi programski paket CFD Large Eddy Simulation method of Fire Dynamics Simulator kako bi se odredila optimalna udaljenost potrebna da bi se spriječilo širenje vatre izmđu dviju stambenih grada okrenutih jedne drugoj. Analizirali su se minimalni uvjeti potrebni da bi se zapalile zavjese na prozorima zgrade izložene vatri smještenoj na raznim udaljenostima (3,5 m, 4,0 m i 4,5 m). Dobiveni rezultati pokazuju da se na udaljenosti od 4,5 m vatra ne širi i da je ulazna količina topline na površini zavjese veća od vrijednosti kritične količine topline od 12,6 kW/m2 prihvaćene u mnogim graditeljskim kodeksima. ; Determination of optimal safe distance between buildings is a task of many safety and economic analyses. Generally, it is known that increasing separation distance increases fire protection of an adjacent building, but decreases the cost effectiveness of urban solutions. For this reason, CFD Large Eddy Simulation method of Fire Dynamics Simulator software package has been used in this paper to determine optimal separation distance required for preventing fire spread between two residential buildings facing each other. The minimum conditions necessary for ignition of the window curtains in the fire-exposed building located at different building distances (3,5 m, 4,0 m and 4,5 m) were analysed. The obtained results show that the fire does not spread at the distance of 4,5 m, and that the incident heat flux at the curtain surface is higher than the critical heat flux value of 12,6 kW/m2 adopted in many building codes.
Simulacija širenja vatre između stambenih zgrada u odnosu na sigurnu udaljenost ; Simulation of fire spread between residential buildings regarding safe separation distance
Pesic, Dusica (author) / Zigar, Darko (author) / Raos, Miomir (author) / Anghel, Ion (author)
2017-07-31
Tehnički vjesnik ; ISSN 1330-3651 (Print) ; ISSN 1848-6339 (Online) ; Volume 24 ; Issue 4
Article (Journal)
Electronic Resource
English , Croatian
DDC:
690
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