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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

A numerical and experimental study on the vacuum freeze-drying process of skim milk solution in a vial

Get access (open in a dialog) DOI: 10.1615/IHTC12.680
6 pages

Abstract

Temperature histories at different positions inside a vial were measured during freeze-drying experiments of skim milk under same process condition. By combining the measured temperature histories, we obtained temperature distribution fields, which show curved configuration of sublimation interface and asymmetric temperature distribution inside the vial. Along with the experiment, a numerical calculation was conducted to predict the process using a finite volume method with a moving grid system. Good agreements between the numerical and experimental results were observed.