Analyzing the Effects of Temperature-Dependent Diffusivity in Convective Drying of Food Material.

Abstract

This study investigates the effects of temperature-dependent diffusivity in convective drying of food material. The governing equations has been decoupled using perturbation method and solved via eigenfunction expansion technique. The influences of the dimensionless parameters on temperature and moisture concentration profiles were plotted on graphs. It is noteworthy to mention that the temperature increases with increase in peclet energy number (Pe), moisture concentration rises with increase in peclet mass number (Pem). It is also found that temperature and moisture concentration decreases with increase in reference velocity (u).