Correlation analysis of three influencing factors and the dust production rate for a free-falling particle stream
Correlation analysis of three influencing factors and the dust production rate for a free-falling particle stream作者机构：School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi'an 710055 Shaanxi China College of Urban Construction Hebei University of Engineering Handan 056038 Hebei China Fourth Military Medical University Xi'an 710032 Shaanxi China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2017年第15卷第5期
页 面：126-133页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）]
基 金：国家自然科学基金 support from the National Science Fund for Distinguished Young Scholars of China
主 题：Particle stream Free falling Multiple factors Correlation Regression analysis
摘 要：The effects of three factors （i.e., drop height h, hopper outlet diameter do, and material temperature T] on the dust generation rate derived from a free falling particle stream were investigated via filll factorial experiments. The correlation between the three factors and dust generation rate was also analysed. Results show that Tand h affect the first fugitive dust rate largely, whereas the second fugitive dust rate is mainly dominated by h and do. Through analysing the first fugitive dust percentage data, it is found that h and T should be considered first for higher temperatures and lower flow rates, whereas h and do can be considered under contrasting conditions, and h should be controlled in the remaining two sets of conditions. Relationships between the influencing factors and total and first fugitive dust rates were developed via multiple regression to quantify the dust emission rates for different contact surfaces （rigid or water）.
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