Parameter Sensitivity of the Microdroplet Vacuum Freezing Process
Joint Authors
Zhao, Shuangshuang
Zhao, Lili
Zhang, Zhijun
Zhang, Wenhui
Zhang, Yuekai
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-11
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The vacuum freezing process of microdroplets (<100 μm in diameter) is studied by dynamic mesh method.
The mass transfer coefficient was studied using the results of related papers that considered droplet diameters exceeding 1 mm.
The diameter, initial temperature, and vacuum chamber pressure effects are also discussed.
To estimate parameter sensitivity, the effects of material density, specific heat, and thermal conductivity in 20% scope, as well as latent evaporation/sublimation in 5%, were simulated.
The results show that the mass transfer coefficient K is essentially different between microdroplets (<100 μm) and macrodroplet (>1 mm).
Pressure and droplet diameter have an effect on cooling and freezing stages, but initial temperature only affects the cooling stage.
The thermal conductivity coefficient k l affected the cooling stage, whereas k i affected the freezing stage.
Heat capacity C l affected the cooling stage, but C i has virtually no effect on all stages.
The actual latent heat of freezing Δ H was also affected.
Higher density corresponds to lower cooling rate in the cooling stage.
American Psychological Association (APA)
Zhang, Zhijun& Zhang, Yuekai& Zhao, Lili& Zhang, Wenhui& Zhao, Shuangshuang. 2015. Parameter Sensitivity of the Microdroplet Vacuum Freezing Process. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1073629
Modern Language Association (MLA)
Zhang, Zhijun…[et al.]. Parameter Sensitivity of the Microdroplet Vacuum Freezing Process. Mathematical Problems in Engineering No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1073629
American Medical Association (AMA)
Zhang, Zhijun& Zhang, Yuekai& Zhao, Lili& Zhang, Wenhui& Zhao, Shuangshuang. Parameter Sensitivity of the Microdroplet Vacuum Freezing Process. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1073629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073629