MORPHOLOGICAL CHARACTERIZATION OF FLUIDIZED BED SPRAY DRYING AGGLOMERATES BY X-RAY TOMOGRAPHY

摘要：

　　The dependence of the internal morphology of agglomerates produced in a spray fluidized bed dryer on the operating conditions – drying rate and binder mass fraction – was investigated by means of X-ray μ-computed tomography.Sequences of image processing provide access to the concealed structure of the agglomerates.Morphological descriptors were derived based on 3D data.Emphasis was put on the spatial position of primary particles,including evaluation of the radial distribution of primary particle centers and the distribution of coordination angles.Three different approaches for measuring porosity were introduced.Values and the behavior of morphological descriptors are presented and discussed for different agglomerates.

关键词： fluidized bed agglomeration X-ray computed tomography morphological descriptors drying rate binder mass fraction

作者: M.Dadkhah M.Peglow E.Tsotsas

作者单位: Thermal Process Engineering,Otto von Guericke University Magdeburg,Universit(a)tsplatz 2,Magdeburg,39106,Germany

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-7

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）