Indexed by:
期刊论文
First Author:
Jiang, Xiaobin
Correspondence Author:
Wang, JK (reprint author), Tianjin Univ, Sch Chem Engn & Technol, State Res Ctr Industrializat Crystallizat Technol, Tianjin 300072, Peoples R China.
Co-author:
Hou, Baohong,He, Gaohong,Wang, Jingkang
Date of Publication:
2013-03-22
Journal:
CHEMICAL ENGINEERING SCIENCE
Included Journals:
SCIE、EI
Document Type:
J
Volume:
91
Page Number:
111-121
ISSN No.:
0009-2509
Key Words:
Melt crystallization; Fractals; Porous media; Separations; Simulation;
Sweating
Abstract:
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.
Translation or Not:
no
