Physical and engineering properties of chickpea (Cicer arietnum L.) for planter design Deo Man Mohan1,*, Verma Prasoon1, Praharaj CS2, Prakash Om3, Kumar Narendra1 1ICAR-Indian Institute of Pulses Research, Kanpur - 208 024, Uttar Pradesh, India 2ICAR-Directorate of Groundnut Research, Junagarh - 362001, Gujarat, India 3ICAR-Central Arid Zone Research Institute, Jodhpur - 342 003, Rajasthan, India *E-mail: anandi888@gmail.com
Online published on 20 November, 2023. Abstract The design of a chickpea planter and its optimum performance requires physical and engineering properties of the grain varying with cultivars. Such properties include size, shape, mass, density, static friction coefficient, and repose angle etc. The cultivars viz. JG 16, HC 5, KWR 108, IPC 4-1, IPC 5-62, DCP 92-3, IPC 4-98 and JG 14 were investigated at 11.0±1.0 per cent moisture content using standard methodology. The grain size was presented in terms of major, intermediate, minor, and geometric mean diameters as 8.49-9.78, 5.91-7.23, 5.88-6.94, and 6.68-7.89 mm, respectively. The shape of the grain was presented in terms of sphericity which ranged from 0.78-0.81. The thousand seed mass, bulk density, and true density were 198-338 g, 830-880 kg m-3, and 1310-1350 kg m-3, respectively. The static friction coefficient was the least against aluminium followed by galvanised iron and mild steel surfaces with respective ranges of 0.37-0.40, 0.41-0.45, and 0.52-0.56. The angle of repose ranged from 26.4-27.7 degrees. There was a significant varietal difference in different physical and engineering properties of chickpeas except true density and angle of repose, where the difference was non-significant. Top Keywords Angle of repose, Bulk density, Coefficient of static friction, Geometric mean diameter, Sphericity, True density. Top |