Sorting and Classification of Walnut Kernels Based on Size and Structure

Abstract

This research examines the physical properties of walnut kernels through a comprehensive experimental approach. Initial masses (m₁) of kernels from three local varieties were measured and subjected to a drying process to stabilize moisture content. Post-drying masses (m₂) were recorded initially, with subsequent measurements (m₃) taken after one additional week. The relative mass losses (Δφ₁ and Δφ₂) were calculated to assess moisture dynamics and kernel stability. Additionally, kernel sizes were measured and analyzed to establish a relationship between size and frequency using a third-order polynomial approximation via Comsol Multiphysics 6.1 software. Statistical methods were applied to determine average sizes, variances, and sorting criteria for walnut kernels.