Tehnički vjesnik, Vol. 24 No. 4, 2017.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20150923233514
Simulation of fire spread between residential buildings regarding safe separation distance
Dusica Pesic
; University of Nis, Faculty of Occupational Safety in Nis, Carnojevica 10a, 18000 Nis, Serbia
Darko Zigar
orcid.org/0000-0001-8600-0316
; University of Nis, Faculty of Occupational Safety in Nis, Carnojevica 10a, 18000 Nis, Serbia
Miomir Raos
orcid.org/0000-0001-5586-0276
; University of Nis, Faculty of Occupational Safety in Nis, Carnojevica 10a, 18000 Nis, Serbia
Ion Anghel
; Police Academy, Fire Officers Faculty, Privighetorilor Street, sector 1, Bucharest, Romania
Sažetak
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.
Ključne riječi
fire spread; LES method; residential building; separation distance
Hrčak ID:
185508
URI
Datum izdavanja:
31.7.2017.
Posjeta: 2.676 *