Redefining of potential dust explosion risk parameters for additives in the petrochemical manufacturing process

Cheng, Yu-Chi; Liao, Sheng-Wei; Alauddin, Mohammad; Amyotte, Paul; Shu, Chi‐Min

doi:10.1016/j.psep.2022.11.018

Cited by 7 publications

(3 citation statements)

References 39 publications

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“…The MITC and MIE of dust clouds describe the difficulty of dust combustion and are important characteristic parameters for evaluating dust ignition sensitivity. , In order to compare and analyze the MIE of three powder coatings, the accurate value of MIE was calculated using eq log nobreak0em0.25em⁡ M I E = log nobreak0em0.25em⁡ E 2 − I [ E 2 ] · false( log nobreak0em0.25em⁡ E 2 − log nobreak0em0.25em⁡ E 1 false) ( NI + I ) · [ E 2 ] + 1 …”

Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

“…The MITC and MIE of dust clouds describe the difficulty of dust combustion and are important characteristic parameters for evaluating dust ignition sensitivity. 34,35 In order to compare and analyze the MIE of three powder coatings, the accurate value of MIE was calculated using eq 3 32 In the formula, E 1 represents the highest energy value that has not been ignited for 10 consecutive times; E 2 represents the lowest energy value for 10 consecutive fires; I[E 2 ] represents the number of ignition times at different concentrations under the ignition energy E 2 ; (NI + I)[E 2 ] represents the total number of experiments at different concentrations.…”

Section: Ignition Sensitivity and Flame Propagation Of Dust Cloudsmentioning

confidence: 99%

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Study on Explosion Characteristics and Mechanism of Electrostatic Spray Powder

Qin,

Zhang,

Shi

et al. 2024

ACS Omega

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In order to fully understand the explosion risk of electrostatic spraying powder, corresponding preventive measures are put forward. The explosion characteristics, ignition sensitivity, and flame propagation of three typical electrostatic spraying powders were tested using a 20 L spherical explosion test device, a G–G furnace test device, and a Hartmann tube test device, and the explosion process and mechanism of electrostatic spraying powders were discussed. The results show that the maximum explosion pressure and the maximum explosion pressure rise rate increase first and then decrease with the increase in mass concentration. The maximum explosion pressure and the maximum explosion pressure rise rate of acrylic powder coating are the largest, which are 0.75 and 85.4 MPa/s, respectively. The shortest burning time is 97.5 ms, and the highest explosion danger level is 23.46 MPa·m/s. The flame propagation of electrostatic spraying powder develops slowly; the flame front spreads linearly and the average flame velocity increases first and then decreases. The explosive development process of powder coating particles is concentrated in the three-phase system of solid particles, molten particles, and pyrolytic gasification combustible gas, which goes through the kinetic process of particle heating melting, cross-linking curing, pyrolytic gasification, combustion, and extinction.

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