Flow and Diffusion Characteristics of Typical Halon Extinguishing Agent Substitute under Different Release Pressures

Jin, Jiaming; Pan, Renming; Chen, Ruiyu; Xu, Xiaokang; Li, Quanwei

doi:10.3390/pr8121684

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…Huynh et al [18] describes a green and facile method for the preparation of multibranched gold nanoparticles using hydroquinone as a reducing agent and chitosan as a stabilizer, through ultrasound irradiation to improve the multibranched shape and stability. To provide guidance towards reducing the weight of the HFC-125 storage vessel by reducing the release pressure and to reveal the effects of release pressure on the extinguishing efficiency of HFC-125, Jin et al [19] investigate the flow and diffusion characteristics of HFC-125 under six release pressures in the present study. Results show that the degree of superheat and the injection duration both decreased with the release pressure.…”

Section: Other Issuesmentioning

confidence: 99%

Special Issue on “Green Technologies for Production Processes”

et al. 2021

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Section: Other Issuesmentioning

confidence: 99%

Special Issue on “Green Technologies for Production Processes”

et al. 2021

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“…In this stage, the liquid in the bottom moves from the bottle to the pipe. At the second stage, the dissolved nitrogen releases from the liquid [13][14][15][16][17][18][19][20]. The released nitrogen forms bubbles, and increases the gas volume fraction of the outflow.…”

Section: Introductionmentioning

confidence: 99%

“…The influence of the bottle condition on the discharge process was studied by Li Q. et al [13,14]. It was found that as the initial bottle pressure increased, the discharge time decreased exponentially and nitrogen bubbles occurred earlier.…”

Section: Introductionmentioning

confidence: 99%

Impact of Pipe Diameter on the Discharge Process of Halon1301 in a Fire Extinguishing System with Horizontal Straight Pipe

Chen,

Zhao,

Huang

et al. 2023

Fire

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In aviation fire extinguishing systems, the extinguishing agent is stored in a bottle, which is pressurized by nitrogen. When fire occurs, the agent is discharged via pipe and nozzle to the target compartment. The geometry of the pipe has a significant impact on the discharge process, and merits study. In this study of the discharge process of halon1301 using pipes of different diameters, the pressure distribution was significantly influenced by varying pipe diameter. Contributions to pressure drops through the valve/pipe/nozzle were approximately 2%, 8%, and 90%, respectively, when the pipe diameter was larger than the nozzle diameter. The contribution through the pipe increased, and the contribution through the nozzle decreased, as the pipe diameter became smaller. When the pipe diameter was decreased to the nozzle diameter, pressure drops through the valve/pipe/nozzle were 10%, 45%, and 45%, respectively; there was an increased pressure drop through the pipe. Distinctions in pressure distribution led to temperature differences; when there were more pressure drops through the nozzle, the temperature in the pipe was lower.

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