Drying Characteristics of Porous Materials Containing Sucrose/NaCl Aqueous Solution at Wide Range of Steam Partial Pressures

Hiroyuki IYOTA; Satoshi FUJITA; Naoya KINOSHITA; Masamichi YOSHIDA; Atsushi HASHIMOTO

doi:10.11395/jjsem.9.s48

Hiroyuki IYOTA, Satoshi FUJITA, Naoya KINOSHITA, Masamichi YOSHIDA, Atsushi HASHIMOTO

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Keywords: Glass-bead-packed Beds, High-humidity Air, Superheated Steam, Drying, Sugar-salt Aqueous Solution

JOURNAL FREE ACCESS

2009 Volume 9 Issue Special_Issue Pages s48-s53

DOI https://doi.org/10.11395/jjsem.9.s48

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Abstract

The convective drying of glass-bead-packed beds containing sucrose/NaCl aqueous solution was examined at a wide range of steam partial pressures using room air to superheated steam at 160 °C. The sucrose distribution in the sample materials after drying was affected by the humidity of the drying media and the glass bead diameter. This indicated that the density gradient affected convection flow. The drying time of the sample material with NaCl aqueous solution at a steam partial pressure of 16 kPa (high-humidity air) was shorter than that under other conditions.

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