Please use this identifier to cite or link to this item:
Title: Effects of electric and magnetic field on freezing and possible relevance in freeze drying
Authors: Woo, M.W.
Mujumdar, A.S. 
Keywords: Electric field
Ice nucleation
Magnetic field
Magnetocaloric freezer
Issue Date: Apr-2010
Citation: Woo, M.W., Mujumdar, A.S. (2010-04). Effects of electric and magnetic field on freezing and possible relevance in freeze drying. Drying Technology 28 (4) : 433-443. ScholarBank@NUS Repository.
Abstract: Application of an electric or magnetic field can significantly affect the freezing characteristics of water. A DC electric field will tend to induce ice nucleation at a lower degree of supercooling, and there is evidence to show that an AC electric field delays the onset of ice nucleation. Industrial research has shown that a magnetic field can be used to delay nucleation and to induce small, unclustered ice. Smaller ice crystals are essential in the preservation of the structure or bioavailability of frozen materials, particularly biological or food products. On the other hand, larger ice crystals facilitate faster freeze drying because it results in less vapor mass transfer resistance. The end part of this review introduces another application of magnetic field in the form of magnetocaloric freezers. This technology is a potential alternative to heat pump drying for commercial freezing and refrigeration. © 2010 Taylor & Francis Group.
Source Title: Drying Technology
ISSN: 07373937
DOI: 10.1080/07373930903202077
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Mar 19, 2019


checked on Mar 19, 2019

Page view(s)

checked on Mar 23, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.