Experimental Investigation Of Single Layer Drying Behavior Of Potato In A Fabricated Tunnel Drier
Experiments are conducted in a tunnel dryer using cubic shaped (10x10x10mm) potato for various drying air
temperature (40.1-53.30C), velocity (1.1, 1.4, 1.9 and 2.3 m/s) and relative humidity (16-40.5%) values. The temperature
and relative humidity are measured and recorded every 20 min. at fan inlet, upstream and downstream of the tray, the
velocity is measured only at the tunnel exit. The measured data is used to obtain drying and drying rate curves. The
curves indicate that drying process takes place in the falling rate period except very short unsteady-state initial and constant
Keywords— Hot Air Drying, Tunnel Drying, Air Flow Rate, Drying.