Sweet potato dust explosion study based on response surface methodology

doi:10.16265/j.cnki.issn1003-3033.2017.01.008

Abstract

Abstract: To provide a sound basis for sweet potato dust explosion prevention, experiments were carried out by using a 20 L spherical explosive device. Effects of three single factors including the particle size, concentration of dust and ignition energy on the explosion were studied. Besides, the response surface methodology was used to analyze the factors influencing the explosion of sweet potato dust by Design-Expert software,based on Box-Behnken design. The results show that there is a negative correlation between the maximum explosion pressure of sweet potato dust and the particle size, that the maximum explosion pressure increases first and then decreases with the dust concentration, and that the maximum explosion pressure increases with the ignition energy. The Box-Behnken test results show that the effect of sweet potato dust concentration on dust explosion is the greatest, followed by the ignition energy, and the effect of sweet potato dust particle size on the corresponding dust explosion is minimal.

Key words: sweet potato dust, spherical explosive device, particle size, mass concentration, ignition energy, response surface methodology

CLC Number:

X932

CHEN Chunyan, LONG Sihua, XIAO Guoqing, WANG Linyuan. Sweet potato dust explosion study based on response surface methodology[J]. China Safety Science Journal, 2017, 27(1): 42-47.

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