Performance of Experimental Dryer and a Drying of Rough Rice

Abstract

An experimental dryer was constructed to measure the drying characteristics of deep and shallow beds of cereal grains including rice. Experiments were carried out on rough rice both in shallow and in deep beds to catch the performance of this dryer, and it was found that the performance was sufficient enough to attain the original objectives. Drying characteristics of rough rice such as 1) moisture content distribution in the bed, 2) air temperature distribution in the bed, 3) drying rate, 4) moisture content before and after drying etc. were obtained. At the same time, the inlet air temperature and humidity, the outlet air temperature and humidity, air flow rate and pressure drop in the bed were measured. The initial moisture content of grain was determined by using the oven method of 105°C for 5 hours.