Drying kinetics of pumpkinseeds

摘要: The drying of pumpkinseeds was investigated in the present study. Pumpkinseed has a thin liquid film on its surface and rough-surfaced peel. most important parameter affecting kinetics increasing rate is temperature air. Drying carried out with surrounding air first at ambient temperature, secondly an experimental rig built to increase by using solar energy. A single layer pumpkinseed dried two different ways free forced convection. In these methods, were either placed tray exposed natural environment or sieves rig. curves variation obtained dependent product moisture content. velocity can take until saturation secondary effect transfer. analysis, considered like measurable rectangular prism. Fick's analytical solution, including effective diffusion coefficient, applied model. results from model compared data good agreement found. Copyright © 2000 John Wiley & Sons, Ltd.