Comparative Evaluation of Human-Assisted and Semi-Automated Peeling Systems for Roasted Groundnut Seeds

This paper investigates human-assisted and semi-automated peeling systems for roasted-seed groundnut peeling machines, highlighting recent technological advances. The machine is designed to reduce manual labour, minimise fatigue, and save time during peeling. Powered by electricity, the machine includes components such as a feed hopper, a shaft, a frame, a variable-speed electric motor, a universal joint coupling, and a peeling brush. Performance evaluations were carried out to assess the machine's efficiency. Results showed a strong, significant correlation (r=0.828), indicating an 82.8% relationship among the tested parameters, providing the best fit. The machine's performance varied with different revolutions per minute. While hand peeling 5 kg of groundnuts takes about 3-5 hours, the machine completes the task in just 14 minutes. It achieves a peeling efficiency of 90%, a broken nut percentage of 11%, and a capacity of 19.6 kg/h of peeled groundnuts.