2137 気流乾燥中の材料温度履歴に与える乾燥熱風の条件変動の影響(G06-6 熱工学(6) 伝熱(4),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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Generally, the conditions of convective heating in equipments used for food processing, such as a dryer or an oven, varies slightly. For instance, in automatic regulation, door opening/closing can cause such fluctuations. In this study, the effect of flow conditions (temperature, humidity, and pressure under constant/nonconstant conditions) on the material temperature and drying rate is investigated by an experiment and a numerical study using an approximate model for heat and mass transfer. The results show that the change in the humidity of the drying media is affected strongly by the material temperature and drying rate. With in a few seconds of a decrease in the humidity, the evaporation rate increases temporarily under the experimental conditions of this study.
一般社団法人日本機械学会の論文
2008-08-02