Numerical study of water spray interaction with fire plume in dual chambers connected to tall shaft

Harish, R.; Venkatasubbaiah, K.

doi:10.1016/j.firesaf.2015.03.007

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…The equations for the conservation of mass, momentum and energy of the fluid used in the calculations are as follows [23][24][25]:…”

Section: Theoretical Analysismentioning

confidence: 99%

Numerical Simulation of 35kV Oil-Immersed Transformer Fire and Extinguishing Effects of High-Pressure Fine Water Mist

Yao¹,

Lv²,

Shi³

et al. 2023

IJHT

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Oil-immersed transformer is the key equipment of power transmission, the fire caused by its failure will cause huge economic losses. The aim of this study is to investigate the combustion characteristics of oil-immersed transformer fires under different environmental conditions, and the effectiveness of high-pressure fine water spray on transformer fires under different parameters. Numerical simulation of transformer fires using PyroSim software simulation of high-pressure fine water mist fire extinguishing effect -parameter optimisation, focusing on the combustion characteristics of transformer fires at different ambient temperatures (-5℃, 0℃, 5℃, 10℃, 20℃) and wind speeds (0 m/s, 1 m/s, 2 m/s, 4 m/s) and the suppression effect of high-pressure fine water mist on transformer fires at different spray flows (0.3 L/min, 0.6 L/min) and ambient wind speeds (0 m/s, 1 m/s, 2 m/s, 4 m/s). The simulation results show a negative correlation between the temperature variation above the flame and the spatial height. Changes in ambient temperature with insignificant changes in flue gas concentration and mean changes in flue gas temperature between 800℃ and 900℃. Changing the ambient wind speed deflects the flame along the wind direction and has a greater effect on the temperature field distribution above the flame. When the spray flow rate is 0.6L/min, the high-pressure fine water mist system has a better cooling effect on transformer fires. This study has shown that high pressure fine water mist systems can effectively extinguish oil-immersed transformer fires under the appropriate parameters. However, the effectiveness of the high-pressure fine water mist in extinguishing fires is reduced in the presence of increased ambient wind speeds. This paper provides the corresponding theoretical support for the development.

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“…The equations for the conservation of mass, momentum and energy of the fluid used in the calculations are as follows [23][24][25]:…”

Section: Theoretical Analysismentioning

confidence: 99%

Numerical Simulation of 35kV Oil-Immersed Transformer Fire and Extinguishing Effects of High-Pressure Fine Water Mist

Yao¹,

Lv²,

Shi³

et al. 2023

IJHT

View full text Add to dashboard Cite

show abstract

“…FDS is a field model-based software tool for computational fluid dynamics developed by the National Institute of Standards and Technology (NIST) [15,16] . It has been widely used in the field of fire studies and has been verified and improved by a large number of experiments [17,18] .…”

Section: Applications Of Fds For Evacuation In Fire Scenariosmentioning

confidence: 99%

Dynamic optimisation of evacuation route in the fire scenarios of offshore drilling platforms

Yan

Wang

et al. 2022

Ocean Engineering

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Optimization of fire sprinkler design for uniform water flux distribution using a micro-genetic algorithm

Kim

2024

Fire Safety Journal

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Numerical study of water spray interaction with fire plume in dual chambers connected to tall shaft

Cited by 9 publications

References 37 publications

Numerical Simulation of 35kV Oil-Immersed Transformer Fire and Extinguishing Effects of High-Pressure Fine Water Mist

Numerical Simulation of 35kV Oil-Immersed Transformer Fire and Extinguishing Effects of High-Pressure Fine Water Mist

Dynamic optimisation of evacuation route in the fire scenarios of offshore drilling platforms

Optimization of fire sprinkler design for uniform water flux distribution using a micro-genetic algorithm

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