Performance evaluation and cost estimation as compared for different paddy threshers

Abstract

The experiment was conducted on four different tractor operated paddy threshers at lohar Khera, Sanga and Baguwali in Fatehabad (Haryana). The main purpose of this research work was to estimate the operational cost, evaluate their performance and select the best one by comparing their performance. In this study, four paddy threshers model such as Manku Agro., New Agri. Work, Delux Manku and Manku Agri. Rattan were tested at different threshing cylinder rpm 12, 15, 20, 25, 30 and 35 m/sec and corresponding these speed their performance were evaluated. The variation in speed was achieved by using stepped pulley system. The operational cost of each paddy thresher was estimated by the straight line method of depreciation and it was found that the Manku Delux paddy thresher had minimum operational cost about 380 Rs/hr and minimum fuel consumption about 2.75 lt/hr. The maximum threshing efficiency (96, 96.6, 98.80 and 95.60%) and cleaning efficiency (96.4, 97, 98.2 and 96.5) was achieved of Manku Agro., New Agri. Work, Delux Manku and Manku Agri. Rattan respectively. The fuel consumption rate was found 3.026, 3.023, 2.75, 3.40 lt/hour of these thresher such as Manku Agro., New Agri. Work, Delux Manku and Manku Agri. Rattan respectively. The total loss was found 2.33, 2.82, 2.20 and 2.74 percent in Manku Agro., New Agri. Work, Delux Manku and Manku Agri. Rattan thresher respectively. From this study, it was concluded that Delux Manku thresher is best one, since it is more economical due to less fuel consumption rate and it has more threshing efficiency, cleaning efficiency and minimum total loss.