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KMID : 0896220000200010439
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Journal of Daegu Health College
2000 Volume.20 No. 1 p.439 ~ p.456
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A Numerical Study of Fire Dynamics of The Enclosed Compartment with Window Glass Breaking
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Jeon Heung-Kyun
Choi Young-Sang
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Abstract
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The use of computer supported fire safety engineering calculations has grown significantly in recent years and will be increased rapidly. In this study, in order to examine for fire dynamics of the enclosed compartment with window glass(3㎜, 4㎜ thickness) when the window glass breaks, we conducted numerical computer simulations about foam sofa fire with the zone type computer model, FASTLite package(version 1.1.2) and the Berkeley algorithm for breaking window glass in a compartment fire, BREAK1 program(version 1.0). The analysis of the results in this paper shows that there are differences of fire dynamics between open- or enclosed-state compartment fire and the enclosed compartment fire with window glass breaking. It is also shown in this study that backdraft phenomenum occurs due to accumulated unburned combustible fuel when the glass of 4㎜ thickness breaks, and that temperature differences between the inner- and outer-surfaces of 3㎜ and 4㎜ thick glasses are appreciable. This study will help fire fighter to establish fire suppression or occupant’s refuge strategies and fire safety engineer to enhance computer simulation techniques about the fire dynamics of compartment fire.
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