MODIFICATION AND PERFORMANCE EVALUATION OF IAR GROUNDNUT SHELLER FOR SOME SELECTED VARIETIES OF PULSES

📄 Project Abstract

IAR groundnut sheller was developed in 1985 and the design was based on the properties of the then groundnut variety known as Ex-Dakar. New varieties were later developed whose acceptability in practice override, this called for its modification and determination of the characteristics of new varieties.The machine size was modified resulting in the modification of all its components for pulse shelling. The machine consists of the hopper, shelling cylinder, removable concave, blower, chaffs outlet, grains delivery chute, clearance adjuster and frame. The machineperformance was comparatively evaluated using groundnut and cowpea as test crops. A combination of four cylinder speed levels; 2.59, 2.79, 2.98 and 3.18 m/s (130, 140, 150 and 160 rpm), three feed rates (8, 10, and 12 kg/min) and three concave clearances (19, 21 and 23 mm) were used for the performance evaluation of themodified shelling machine using groundnut while a combination of three speed levels; 2.39, 2.59, and 2.79 m/s (1...