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CONCLUSIONS 1. The particle size affects the explosion index ( K St ) much more than the maximum explosion pressure ( P max ). Both K St and P max present a decreasing trend with increasing particle size, and the P max values are in the range of 7 to 9 bar, regardless of species. 2. For different species, wood dust with similar particle size have different explosion pressure and explosion index values, which are ranked as Populus alba L . > Cinnamonum camphora (L.) Pres. > Pinus massoniana Lamb. 3. For the explosion pressure of wood dust samples with same particle size, the dust concentration exhibited a threshold value that produced P max values of 750 g/m 3 , 750 g/m 3 , and 500 g/m 3 for Populus alba dust, Pinus massoniana dust, and Cinnamonum camphora dust, respectively. 4. Particle size and dust concentration have a synergistic effect on the explosion pressure and explosion index. Wood dust with a smaller particle size is more likely to explode at the threshold of dust concentration. ACKNOWLEDGMENTS This work was financially supported by “The National Key Research and Development Program of China (Project No. 2016YFD0600703)”, and the “Postgraduate Education Reform Project of Jiangsu Province .” REFERENCES CITED Abbasi, T., and Abbasi, S. A. (2007). “Dust explosions – Cases, causes, consequences, and control,” Journal of Hazardous Materials 140, 7-44. DOI: 10.1016/j.jhazmat.2006.11.007 Amyotte, P. R., and Eckhoff , R. K. (2010). “Dust explosion causation, prevention and mitigation: An overview,” Journal of Chemical Health and Safety 17, 15-28. DOI: 10.1016/j.jchas.2009.05.002 Amyotte, P. R., Cloney, C. T., Khan, F. I., and Ripley, R. C. (2012). “Dust explosion risk moderation for flocculent dusts,” Journal of Loss Prevention in the Process Industries 25, 862-869. DOI: 10.1016/j.jlp.2012.05.007 BS EN 14034 –1 (2004). “Determination of explosion characteristics of dust clouds– Part 1: Determination of the maximum explosion pressure P max of dust clouds,” European Standard, London, England. BS EN 14034- 2 (2006). “Determination of explosion characteristics of dust clouds– Part 2: Determination of the maximum rate of explosion pressure rise (d t /d p ) max of dust clouds,” European Standard , London, UK. Calle, S., Klaba, L., Thomas, D., Per rin, L., and Dufaud, O. (2005). “Influence of the size distribution and concentration on wood dust explosion: Experiments and reaction modelling,” Powder Technology 157, 144-148. DOI: 10.1016/j.powtec.2005.05.021
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Guo et al . (2019 ). “Explosion of wood d usts,” B io R esources 14(2), 3182-3199.
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