Influence of Water Mist Nozzle Characteristic Parameters on Oil Pool Fire Extinguishing in Confined Space

Gui, Xingmin; Xue, Haiteng; Hu, Zhengyu; Cui, Zehui

doi:10.1007/s13369-022-07162-0

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…Mathematical and physical models of an oil pool fire are demonstrated by previous research [3]. This study's objective is to investigate the secondary effect of water mist nozzle parameters on an oil pool fire in a confined space.…”

Section: Introductionmentioning

confidence: 99%

Nozzle diameter and expansion ratio of compressed air foam system

Farida,

Kusumohadi,

Fikri

2023

J. Phys.: Conf. Ser.

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Variations of nozzles are studied for Compressed Air Foam Systems (CAFS). The CAFS is a self-contained fire suppression system with the capability of injecting compressed air into the foam solution to create a dense mist. Even though this type of foam has a tighter, denser bubble structure that allows it to adhere to vertical and horizontal surfaces and penetrate the fire more deeply before the bubbles burst, thereby making it more effective, the nozzle of CAFS is weak. The experimental study has been done in order to find the expansion ratio of the nozzle. Four sizes of diameter nozzles are 5 mm, 10 mm, and 20 mm, and three holes are 20 mm. Nozzle diameter size has a correlation with bubble size. The highest expansion ratio is found in the nozzle with three holes 20 mm in diameter. It is followed by a nozzle with a 20 mm diameter, then a 10 mm diameter. The last finding is a nozzle with five diameters. The other founding is the linear correlation between nozzle diameter size and bubble size. But it is on the other way than the correlation between nozzle diameter and bubble size. The shorter the nozzle diameter, the faster the fire extinguishing time.

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Section: Introductionmentioning

confidence: 99%

Nozzle diameter and expansion ratio of compressed air foam system

Farida,

Kusumohadi,

Fikri

2023

J. Phys.: Conf. Ser.

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“…Lee studied the application of WMS in a nuclear power plant electrical room and derived a power function relationship between the nozzle and fire source horizontal distance on fire suppression time [30]. Gui discussed the effect of nozzle characteristics parameters such as atomization cone angle, spray velocity, droplet size, and spray flow rate on fire suppression effectiveness in a naturally ventilated room [31]. Ku discussed the effect of different droplet velocities and nozzle flow rates on fire extension [29].…”

Section: Introductionmentioning

confidence: 99%

Indoor Fire Simulation in Low-Rise Teaching Buildings Based on BIM–FDS

Liu

Wang

2023

Fire

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School buildings gather a large number of underage students, and the disastrous consequences of fire in such buildings are very serious, which is one of the key concerns of society in fire prevention and control. This study takes a “[” type kindergarten teaching building as the background and constructs a BIM–FDS building fire simulation model to reveal the fire smoke dispersion law under the coupling of the typical building structure and fire protection systems. The results show that the stairwells on both sides of the “[” type building are the main channels for the diffusion of fire smoke, and the asymmetry of the stairwell structure will cause apparent differences in the diffusion of smoke. Using the natural smoke exhaust in the stairwells of low-rise buildings does not aggravate the spread of smoke in the building and is conducive to smoke emissions. The high-pressure water mist system is superior to the water spray system in fire extinguishing and controlling room temperature. While it reduces smoke exhaust performance, it does not adversely affect personnel evacuation. This study systematically reveals the law of diffusion of fire smoke from “[”-type teaching buildings, which can support the design of similar building structures, ventilation, fire protection, and the formulation of fire escape plans.

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