Mathematical modelling and verification of open sun drying of cotton seeds

Abstract Researchers have carried out the kinetics of various agro products for open sun drying, but research articles still need to address such analysis cotton seeds. Open drying seeds has been experimentally investigated and presented in this paper. Shorting was collect appropriate samples current work. Cotton were found a nearly ovoid shape with an average radius 2 2.5 mm. The initial moisture content estimated be 14.65% wet-basis using hot air oven method. During reduction mass measured at every one-hour time interval. From data, it observed that occurred falling rate period. Drying data fitted 10 mathematical models available literature. Multi-regression Excel-solver equation performed obtain values constants coefficients these models. Coefficient determination (R2), reduced chi-square (χ2) root mean square error taken as criteria selection best model. diffusion approach by Verma et al. chosen most suitable Effective diffusivity within range suggested