文献类型：期刊文献

中文题名：粉粒状物料透气性系数的测定

英文题名：Determination of Leaking Coefficient of Air Through Bulk Materials

作者：郑金标[1];彭引平[1];贾志宏[1]

机构：[1]华东化工学院无机材料系

年份：1992

卷号：18

期号：A00

起止页码：38

中文期刊名：华东化工学院学报

收录：Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：两相流;固定床;粉体;测定

外文关键词：two phase flow;packed bed;powder;bulk materials

摘要：对经过分级的六种均齐粉粒状物料进行透气性系数测定。结果表明:球形小米颗粒((?)_p=1.70mm),透气性系数K=1.191×10^(-9)m^2,在整个固定床范围内都符合达西定律;石灰石粉((?)_P=0.900mm),K=5.831×10^(-10)m^2。文中还讨论了达西定律的适用依据和透气性系数的影响因素。
The leaking coefficient of air through six kinds of classified bulk materials was determined. The results show: the leaking coefficients of oxtail millet (■_p = 1.70mm) and limestone powder (■_p = 0.90mm) are constant, which are 1.191 × 10^(-9)m^2 and 5. 831 × 10^(-10)m^2, respectively, and are proven to conform to Dercy's law in whole packed bed. In addition, the basis for the application of Darcy's law and the factors affecting leaking coefficient are discussed.