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Heat and Mass Transfer of Droplet Vacuum Freezing Process Based on Dynamic Mesh
Joint Authors
Li, Xun
Zhang, Zhijun
Zhao, Lili
Zhang, Wenhui
Zhang, Yuekai
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-20
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
A numerical simulation using dynamic mesh method by COMSOL has been developed to model heat and mass transfer during vacuum freezing by evaporation of a single droplet.
The initial droplet diameter, initial droplet temperature, and vacuum chamber pressure effect are studied.
The surface and center temperature curve was predicted to show the effect.
The mass transfer rate and radius displacement were also calculated.
The results show the dynamic mesh shows well the freezing process with the radius reduction of droplet.
The initial droplet diameter, initial droplet temperature, and vacuum pressure have obvious effect on freezing process.
The total freezing time is about 200 s, 300 s, and 400 s for droplet diameter 7.5 mm, 10.5 mm, and 12.5 mm, respectively.
The vacuum pressure less than 200 Pa is enough for the less time to freezing the droplet, that is, the key point in freezing time.
The initial droplet temperature has obvious effect on freezing but little effect on freezing temperature.
American Psychological Association (APA)
Zhao, Lili& Zhang, Yuekai& Zhang, Zhijun& Li, Xun& Zhang, Wenhui. 2014. Heat and Mass Transfer of Droplet Vacuum Freezing Process Based on Dynamic Mesh. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-498978
Modern Language Association (MLA)
Zhao, Lili…[et al.]. Heat and Mass Transfer of Droplet Vacuum Freezing Process Based on Dynamic Mesh. Mathematical Problems in Engineering No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-498978
American Medical Association (AMA)
Zhao, Lili& Zhang, Yuekai& Zhang, Zhijun& Li, Xun& Zhang, Wenhui. Heat and Mass Transfer of Droplet Vacuum Freezing Process Based on Dynamic Mesh. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-498978
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498978