Opposite effects of typical solid inertants on flame propagation in Mg dust clouds versus dust layers

Meng, Fanyu; Hou, Xiaochen; Amyotte, Paul; Chang, Liangliang; Bu, Yajie; Li, Gang; Yuan, Chunmiao; Chen, Haiyan

doi:10.1016/j.fuel.2022.124394

Cited by 18 publications

(1 citation statement)

References 68 publications

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“…The flame spread rate (FSV) is a key indicator of material combustion wave propagation. 39 The average FSV is an important parameter reflecting the diffusion rate of the sample surface and can be obtained by fitting the flame front position and time. 31 The results of the FSV calculations for different thicknesses and overlap configurations are shown in Figure 5.…”

Section: Resultsmentioning

confidence: 99%

The fire hazard potential of thermally thin cellulose nonwovens with different overlap configurations

Yuan

Chen²,

Amyotte

et al. 2022

Textile Research Journal

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The fire hazard potential of nonwovens with different overlap configurations and various thicknesses between 0.5 and 5 mm were investigated to clarify the possible worsening situation induced by the difference in overlapping configurations. The fire hazard of thermally thin nonwovens is characterized by flame spread, flame height, temperature distribution, and mass loss. The flame spread rate and FDI (fire development index) increase and then decrease as the thickness of the nonwovens increases. The fire hazard potential of samples with OL configuration (overlapping layer by layer configuration) is higher than that with AO configuration (accordion-style overlap configuration), which is reflected in the high FDI, average fire spread rate, and flame height, and low ignition time. The difference between the fire risk of the two overlapping configurations was confirmed by analyzing the heat transfer mechanism. Due to the different packaging methods, the AO and OL configurations of nonwovens show different degrees of shrinkage and curling effects during combustion. The large air gap between the layers and the weight of the sample edge are the reasons for the weak contraction of the sample with an AO configuration. The sample shrinkage with OL configuration strengthens the flame spread to a certain extent by increasing the convective heat transfer in the preheat zone.

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Section: Resultsmentioning

confidence: 99%