Abstract
In this research, thin layer drying experiments of rough rice and brown rice for animal feed were conducted to determine drying characteristics. Since the optimization of the drying process reduces cost, we also investigated conditions for improving rice drying efficiency. The drying experiments were performed at 40, 50, 60, 70 and 80°C with 10 % of relative humidity. The total amount of heat supplied in the drying chamber and the effective amount of heat used for drying the rice were calculated. As a result of the calculation, the most effective drying condition was elucidated. Moreover, the increase in the drying rate at higher drying temperature increased the thermal efficiency.
