Performance analysis of shell fabric of fire protective clothing for different process parameters

Rathour, Rochak; Rajput, Bhavna; Das, Apurba; Alagirusamy, R.

doi:10.1080/00405000.2022.2145441

Cited by 6 publications

(1 citation statement)

References 33 publications

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“…The hazards could arise from one or a combination of more than one of the following elements: a poisonous fume, a toxic chemical, steam, hot liquid biological heat, etc. [1][2][3][4][5]. The environment prevailing in a firefighting situation depends on heat flux and ambient temperature from moderate to severe situations and the firefighting clothing is made of multilayered woven and nonwoven fabrics, depending on their purpose [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Outer Layer Performance of Fire Protective Clothing

Rathour,

Maurya,

Das

et al. 2024

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In the present study, an attempt has been made to analyse the protection performance of fire-protective clothing. Various exposures to the same fabric in different configurations result in different protection performances. Box-Behnken experiment design was used to optimize the process parameters such as pick density (P), heat flux (Q), and air gap (D). Through surface methodology response, the relationship among the process parameters such as pick density (P), heat flux (Q), and air gap (D) was established. The experimental multi-parametric equation for calculating the radiant protection time (RT) and flame protection time (FT) was acquired. The fabric used was developed with 2/40 Ne Nomex IIIA yarns. The pick density (P) ranged from 40 to 64 picks per inch, heat flux (Q) ranged from 0.5 to 1.5 cal/cm2/sec, and air gap (D) ranged from 0 to 25 mm. To experimentally determine the level of protection, Stoll criteria were used. The experimental and predicted protection time values show a high correlation coefficient value (R2 = 0.985 for radiant and 0.978 for flame). The maximum improvement in protection was obtained at a high level of air gap (25 mm), low level of heat flux (0.5 cal/cm2/sec) and low level of pick density (40 picks per inch). Obtained results, calculations and equations will help researchers explore the empirical equation of the Box-Behnken model and other surface response curves. The values of protection time, in the specified range of the process parameters, by a single calculation could be possible to obtain.

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