Semi-confined layered kerosene/air two-phase detonations bounded by nitrogen gas

Wang, Fang; Weng, Chunsheng; Zhang, Huangwei

doi:10.1016/j.combustflame.2023.113104

Cited by 7 publications

(1 citation statement)

References 56 publications

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“…Therefore, suppressing the vapor explosion can be achieved by inerting the combustion environment, that is, foaming with some inert gas instead of air. N 2 is an inert, stable, and non-reactive gas 16 that can effectively suppress combustion by diluting the concentration of O 2 in the environment and providing an inert atmosphere. Some scholars have used N 2 foam for suppressing self-ignition in coal and mine fires.…”

Section: Introductionmentioning

confidence: 99%

Analysis of fire extinguishing performance and mechanisms in transformer oil pool fires by large-scale compressed nitrogen foam: Impact of different nozzle pressures

Shang,

Zhang,

Zhu

et al. 2024

Journal of Fire Sciences

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This article investigates the suppression of transformer oil pool fires using compressed nitrogen aqueous film-forming foam extinguishing agents with varying nozzle pressures (0.1–0.4 MPa), and a comprehensive analysis of fire extinguishing behavior and resistance to re-ignition was conducted. The research findings indicate that at a nozzle pressure of 0.4 MPa, there is a significant enhancement in fire extinguishing efficiency, with a reduction in extinguishing time by 15.0%–29.2%, and an increase in resistance to re-ignition by 32.2%–48.2%, making it the optimal choice. In comparison to the 0.1 MPa condition, the maximum instantaneous emissions of CO and SO2 at 0.4 MPa are only 66.7%. The interaction of various effects, such as atomization, results in a significant enhancement of flame intensification and fire extinguishing effects when compressed nitrogen aqueous film-forming foam is sprayed at high nozzle pressures. The study provides valuable insights for firefighters in the practical use of foam extinguishing agents.

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Section: Introductionmentioning

confidence: 99%