Constructing an engineering model for moisture migration in bulk solids as a prelude to predicting moisture migration caking
Constructing an engineering model for moisture migration in bulk solids as a prelude to predicting moisture migration caking
复制标题
构建散装固体中水分迁移的工程模型作为预测水分迁移结块的前奏
DOI：
10.1163/156855202320536043
复制
发表时间：
2002
影响因子：
5.2
通讯作者：
U. Tüzün
中科院分区：
文献类型：
--
作者：
M. Leaper;M. Bradley;J. Cleaver;I. Bridle;A. Reed;H. Abou;U. Tüzün
本研究的目的是检查水分迁移结块背后的机制之一，其中由于局部相对湿度的增加，在散装固体系统中的颗粒之间形成液体溶液桥，然后随着局部相对湿度的下降而固化-随着更多的循环发生，效果会增加。目标是根据已建立的物理学和固体（在这种情况下是糖）的特征水分吸附曲线，为所涉及的传热和传质过程开发一个一维模型。使用按比例缩小的设备（结块箱）来模拟大袋中的结块，从而验证该模型。本研究的结果将有助于预测以这种方式产生的结块。
The aim of this study was to examine one of the mechanisms behind moisture migration caking, where liquid solution bridges form between particles in a bulk solid system because of an increase in local relative humidity, and then solidify as the local relative humidity drops - the effect being increased as more cycles occur. The goal was to develop a one-dimensional model for the heat and mass transfer processes involved, based on established physics and the characteristic moisture sorption curve of the solid (in this case sugar). The model was verified using scaled-down equipment (a caking box) to simulate the caking in a big bag. The results of this study will assist in the prediction of caking produced in this way.