過熱水蒸気および高湿度空気による食品加工に関する研究 : 糖溶液を含む多孔質体の乾燥特性に与える気流湿度の影響(オーガナイズドセッション4 材料創成プロセスと熱工学)

概要

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Effect of wet-bulb temperature on a drying rate of porous material containing water or sugar aqua solution in high-temperature (160℃) gas flow was investigated experimentally. Glass beads were used as the sample porous material. Mass and surface temperature changes of the sample during drying were measured with a test apparatus, in which wet-bulb temperature could be controlled from 48℃ to 100℃. From these results, it was shown that when the wet-bulb temperature was higher, the drying rate was smaller and the distribution of local sugar concentration was more even in this experiment. Whereas the water in the sample maintained a constant drying rate, the sucrose solution's drying rate decreased gradually after drying was commenced.
社団法人日本機械学会の論文
2004-11-10