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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精细化工全国重点实验室主任，教育部智能材料化工前沿科学中心执行主任，大连理工大学膜科学与技术研究开发中心主任
性别：女
毕业院校：中国科学院大连化物所
学位：博士
所在单位：化工学院
学科：化学工程. 膜科学与技术. 生物医学工程
联系方式：hgaohong@dlut.edu.cn
电子邮箱：hgaohong@dlut.edu.cn
Falling film melt crystallization (II): Model to simulate the dynamic sweating using fractal porous media theory
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论文类型：期刊论文
发表时间：2013-03-22
发表刊物：CHEMICAL ENGINEERING SCIENCE
收录刊物：SCIE、EI
卷号：91
页面范围：111-121
ISSN号：0009-2509
关键字：Melt crystallization; Fractals; Porous media; Separations; Simulation; Sweating
摘要：This paper describes the model development of dynamic sweating in falling film melt crystallization (FFMC) using fractal porous media theory. The crystal layer has the characteristics of a fractal porous medium. An overall mass balance is applied to determine the structural and characteristic parameters of the crystal layer. Two ideal hypothetical models are adopted to describe the dynamic change of flow rate in sweating under sweating conditions. The characteristic factor phi is introduced to modify the model to describe the real process. The model is validated by experiment, and the simulated result agrees well with the experimental result. The model is then exploited to understand sweating behavior and the structure and permeability variations of the crystal layer in FFMC. More significantly, the sweating model is also an important part of the model system of the overall FFMC process. (C) 2013 Elsevier Ltd. All rights reserved.