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Studies on thermal responses of sprinkler heads in atrium buildings with fire field models
Author(s) -
Yin R.,
Chow W.K.
Publication year - 2001
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/1099-1018(200101/02)25:1<13::aid-fam753>3.0.co;2-c
Subject(s) - atrium (architecture) , ceiling (cloud) , computational fluid dynamics , roof , fire dynamics simulator , environmental science , engineering , structural engineering , simulation , aerospace engineering , medicine , cardiology , atrial fibrillation
Sprinklers are commonly sited in the high headspace atrium of a building where such systems are required. It was questioned whether sprinkler heads would be activated in the case of a fire. A fire modelling technique was applied to estimate the actuation time of sprinkler heads located in the atrium ceiling. The response time of sprinkler heads to a fire in a shop at a high level adjacent to the atrium roof was calculated. A self‐developed FORTRAN code together with the CFD model CFX4.2 were used to simulate the atrium fire environment. The standard k‐ ε model was used with two key parameters, diffusion coefficient and effective Prandtl number tuned. A comparison with some experiments reported in the literature was made. Satisfactory agreement between the predicted and measured results was found. Copyright © 2001 John Wiley & Sons, Ltd.