Model Development and Experimental Validation for Thin-layer Rice Drying with Far Infrared Radiation

摘要

This study started with experimental investigation of thin-layer rice drying with far infrared radiation, which indicated different influences of radiation intensity, radiation plate spacing, and airflow speed on drying rate of thin-layer rice. Based on the experimental results that radiation intensity and its radiation plate spacing had bigger effect on moisture ratio, we developed mathematic model with SPSS software for thin-layer rice drying. In the validating experiments for this developed mathematic model, a satisfied agreement between the experimental measurement and theoretical prediction had been obtained for knowing that the average error of moisture ratio was within 7.5%. Our study concluded that the developed mathematic model could be applied to the prediction of thin-layer rice drying with far infrared radiation.