Title
Modeling conductive heat transfer during high-pressure thawing processes : determination of latent heat as a function of pressureModeling conductive heat transfer during high-pressure thawing processes : determination of latent heat as a function of pressure
Author
Faculty/Department
Faculty of Sciences. Bioscience Engineering
Publication type
article
Publication
Washington, D.C.,
Subject
Biology
Engineering sciences. Technology
Source (journal)
Biotechnology progress. - Washington, D.C.
Volume/pages
16(2000):3, p. 447-455
ISSN
8756-7938
ISI
000087483800021
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
A numerical heat transfer model for predicting product temperature profiles during high-pressure thawing processes was recently proposed by the authors. In the present work, the predictive capacity of the model was considerably improved by taking into account the pressure dependence of the latent heat of the product that was used (Tylose). The effect of pressure on the latent heat of Tylose was experimentally determined by a series of freezing experiments conducted at different pressure levels. By combining a numerical heat transfer model for freezing processes with a least sum of squares optimization procedure, the corresponding latent heat at each pressure level was estimated, and the obtained pressure relation was incorporated in the original high-pressure thawing model. Excellent agreement with the experimental temperature profiles for both high-pressure freezing and thawing was observed.
E-info
https://repository.uantwerpen.be/docman/iruaauth/6e93a3/40e4cc4f37e.pdf
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