Vol. 11, Issue 12 (2022)

Author(s):
Swapnil Jain and Dr. SC Moses

Abstract:
The purpose of this research project is to experimentally find out the physical and engineering properties of paddy for optimizing design of hybrid paddy thresher with aspirator. In this experiment the local variety of Paddy such as Damini Krishna, Damini Gold, Dilkhush, Tata Mandsuri and Kanak Tata were collected as a sample from Tenduvavan and Kanti village in Prayagraj, Uttar Pradesh on November 2021. The experimental studies were carried out at workshop of “Department of Farm Machinery and Power Engineering” SHUATS, Prayagraj (U.P.). During the experiment Crop Parameters, Panicle Parameters and Grain Parameters were found out. The results obtained for all varieties of paddy from the experiments are as follows- Average plant length of paddy varieties ranged from 84.8 cm to 121.96 cm. Average weight of the plant of the sample was found to be 5.1 g, 5.8 g, 5.12 g, 5.04 g and 5.8 g respectively for all varieties. Average weight of grains per panicle of the samples was found to be 1.92 g, 2.84 g, 1.32 g, 2.28 g and 2.38 g respectively for all varieties. Under the grain parameters, it was found that maximum grain size was of Kanak Tata (8.04×2.32×1.32) and the minimum size was of Damini Krishna (6.18×1.52×1.13). Average 100-grains weight of each sample was found to be 1.19 g, 1.5 g, 1.3 g, 1.9 g and 1.7 g respectively. Kanak Tata variety recorded maximum bulk density of 490 kg/m³. It was observed, Average Angle of Repose varies from 25.15^o to 32.68^o. By experiments, highest Coefficient of Friction was found on Wood surface and the lowest on the Steel surface. Based on these results, Hybrid Paddy Thresher was developed and its performance was studied. Hybrid Paddy Thresher so designed will reduce drudgery and increase the efficiency and output. This Hybrid Paddy Thresher will be very useful for the small and marginal farmers.