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Distribution of Vapor Pressure in the Vacuum Freeze-Drying Equipment
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-24
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In the big vacuum freeze-drying equipment, the drying rate of materials is uneven at different positions.
This phenomenon can be explained by the uneven distribution of vapor pressure in chamber during the freeze-drying process.
In this paper, a mathematical model is developed to describe the vapor flow in the passageways either between material plates and in the channel between plate groups.
The distribution of vapor pressure along flow passageway is given.
Two characteristic factors of passageways are defined to express the effects of structural and process parameters on vapor pressure distribution.
The affecting factors and their actions are quantitatively discussed in detail.
Two examples are calculated and analyzed.
The analysis method and the conclusions are useful to estimate the difference of material drying rate at different parts in equipment and to direct the choice of structural and process parameters.
American Psychological Association (APA)
Zhang, Shiwei& Liu, Jun. 2012. Distribution of Vapor Pressure in the Vacuum Freeze-Drying Equipment. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-1029839
Modern Language Association (MLA)
Zhang, Shiwei& Liu, Jun. Distribution of Vapor Pressure in the Vacuum Freeze-Drying Equipment. Mathematical Problems in Engineering No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-1029839
American Medical Association (AMA)
Zhang, Shiwei& Liu, Jun. Distribution of Vapor Pressure in the Vacuum Freeze-Drying Equipment. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-1029839
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029839