Numerical and experimental study of airflow resistance across an array of sliced food items during drying

Simulation of mixed-mode solar dryer with vertical air distribution channel

“…Therefore, using vertical air distributer helps to maintain homogeneous distribution of drying air over the drying tray. The drying rate of products depend on the drying air velocity for velocities less than 1.2 m/s [ 17 , 19 , 54 , 55 ]. Therefore, the current result on the drying trays indicates that the drying rate will be homogeneous at different trays.…”

Convolutional Neural Network to Detect the Optimal Water Content of Cassava Chips During the Drying Process

“…Detailed explanation on Fig. 1 were as follows: (1) nine slices of cassava chips were placed on a tray connected to a digital scale to measure the initial weight of cassava chips; (2) cassava chips weight data was taken every 5 minutes during the drying process; (3) the digital camera took pictures of the cassava chips from the top view, along with the digital scale took the actual weight data of the cassava chips; (4) cassava chips digital image data that had been taken using a digital camera was then sent to a computer via a USB port connection; (5) CNN software in the personal computer was set to classify the water content category of cassava chips into three classes, specifically, wet (water content of 55-70% wb), semi-dry (20-40% wb), and optimal dry (water content of 15-18% wb); (6) digital image data of cassava chips with water content less than 15% were then discarded and exempted in the CNN modeling process; (7) if the results of the classification of the water content of the cassava chips had reached the optimal dry condition, then the system gave an order to the microcontroller to turn off the dryer.…”

“…The drying process also directly affects the reduction of the water content of foodstuffs. Tegenaw [6] proved that the drying process affects changes in water content, which linearly affects the shrinkage process of the dried material. The shrinkage process directly affects the physical parameters of the dried material, such as the area, perimeter, major and minor diameter, roundness, and elongation.…”