State Of Fire Research And Safety

Quintiere, James G.

doi:10.3801/iafss.fss.2-15

Cited by 7 publications

(6 citation statements)

References 17 publications

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“…The reason it does this is probably because of the formation of vortices, as first hypothesized by Williamson et al (1984), and demonstrated for the comer fire by Satoh (1989). Quintiere (1988) described an experiment carried out by B. Lee in 1988 (see Figure 6). The back wall of an ASTM enclosure (2.44x3.56x2.44 m -i.e., 8x12x8 feet -see Anon., 1983Anon., , 1993 was partially covered by 6.35 mm-thick (1/4") sheets of PMMA in the shape of a "T."…”

Section: Flame Length Greater Than the Wall Heightmentioning

confidence: 86%

An algorithm to describe the spread of a wall fire under a ceiling

Mitler¹

1994

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After some discussion of waU fires, the effects that a ceiling has on a wall fire are analyzed and discussed qualitatively.There are two kinds of effects: first, when the upper sill of the ventilating opening lies below the ceiling (as is usual), a layer of hot gas is trapped, which heats the waUs by convection and radiation; the heated ceiling also radiates to the walls. A calculation which uses the wall-fire computer model SPREAD is carried out to demonstrate how these effects can be calculated now. Second, when the flame impinges on the ceiling, it bifurcates and spreads horizontally, rather than vertically. A simple algorithm is presented which calculates the spread rate of these horizontal flame extensions, as well as the modified pyrolysis rate, due to the modified radiation feedbacks.

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Section: Flame Length Greater Than the Wall Heightmentioning

confidence: 86%

An algorithm to describe the spread of a wall fire under a ceiling

Mitler¹

1994

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“…The "T" pattern also occurs during fire growth on a fiat wall. Quintiere (1989) shows this pattern in photographs of a full-scale room-fire test in which a line-burner on the fioor ignited the central section of a PMMA-lined wall beneath a non-combustible ceiling.…”

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confidence: 93%

Comparison of wall-fire behavior with and without a ceiling

1993

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This paper demonslrales lhal Ihe eflfecls of Ihe ceiling on ihe progress of a wall fire are quite significanl, and lhal a projecl to quantify and model Ihe effecls of a ceiling on Ihe progress of a wall fire is indeed needed. Experimenlal resulls from Ihe open literalure, as well as previously-unpublished experimenlal resulls oblained al NIST, are used. The wall-fire model SPREAD and Ihe room-fire model FIRST are used seriatim to show lhal some of Ihese effecls can now be calculaled.

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“…After the Montreal Convention was signed in 1987, the worldwide are seeking the Halon replacement product actively, such as water spray, CO 2 and foam technology research, but there are still no entirely appropriate alternative products. Water mist fire suppression technology occupies an important position in the sprinkler system for it's no environmental pollution, rapid extinguishment of fire, having been regarding as the main alternative product [1][2][3] of the Halon series extinguishing. Water mist demonstrate has broad application prospects in special fire prevention of high-tech fields and major industrial danger.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Suppression of Pool Fire with Water Mist

Chen

Ying²,

Sheng

2013

AMR

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The objective of this work is to investigate the diesel analog pool fire with water mist .For this purpose, a series of water mist fire suppression experiment are carried out by changing the nozzle operating pressure, the source of fire power, opening and closing the exhaust fan to analyze the inhibitory effect of water mist to oil pool fire in the enclosed compartment of 5.0m × 5.0m × 3.0m. The results shows that extinguishing efficiency first increases and then decreases when the nozzle operating pressure increases from 8MPa to 12MPa, reaching the highest efficiency at 10MPa; increasing the power of the source of fire, the burning speed increases and the water mist fire extinguishing efficiency decreases; fresh oxygen coming in when smoke exhaust fan is turned on and water mist fire suppression efficiency decreases. Using FDS to simulate the water mist extinguishing oil pool fire, the predict temperature field and extinguishing time are basically consistent with the experimental results. In the actual applications of water mist fire suppression systems engineering, we can use the FDS field simulation methods to predict the characteristic parameters variation of the fire fighting fire temperature and component concentration, which is significant to the fire extinguishing system optimized design.

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State Of Fire Research And Safety

Cited by 7 publications

References 17 publications

An algorithm to describe the spread of a wall fire under a ceiling

An algorithm to describe the spread of a wall fire under a ceiling

Comparison of wall-fire behavior with and without a ceiling

Experimental and Numerical Study on the Suppression of Pool Fire with Water Mist

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