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VNUHCM Journal of

Science and Technology Development

An official journal of Viet Nam National University Ho Chi Minh City, Viet Nam since 1997

ISSN: 1859-0128
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BUIDING MATHEMATICAL MODEL OF FREEZING HEAT TRANSFER TO DETERMINE ICE RATIO AND OPTIMAL FREEZING TEMPERATURE OF HUMID MATERIALS IN THE FIRST STAGE IN CONDITION OF FREEZE DRYING

Dzung Tan Nguyen 1, *
Dzung Van Trinh 2
Ba Duc Tran 2

  1. University of Technical Education Ho Chi Minh City VN
  2. University of Technology, VNU- HCM
Correspondence to: Dzung Tan Nguyen, University of Technical Education Ho Chi Minh City VN. Email: pvphuc@hcmuns.edu.vn.
Volume & Issue: Vol. 13 No. 4 (2010) | Page No.: 83-98 | DOI: 10.32508/stdj.v13i4.2171
Published: 2010-12-30

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Copyright © 2010 by the author(s).

This article is published with open access by Viet Nam National University, Ho Chi Minh City, Viet Nam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

Abstract

When foods are frozen to preserve as well as perform the first stage during condition of freeze drying. The problem need to consider how to determine optimal freezing temperature, this problem is complicated. In this article presents research results of a mathematical model in describing freezing heat transfer to determine ice ratio of humid material following freezing temperature, the results received was basic to determine optimal freezing temperature, to regime technological the first stage of freeze drying and applied to calculate and design the system of freeze drying.

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