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Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS)


Article Title: Model Developed for Farm Tractors and Implements Selection for Optimum Utilization
by Basil O. Akinnuli1, Felicia O. Akerele2and Akhire B.C. Nathaniel3

Machinery selection is a vital element in planning implementation and operation of agricultural services used for large or small scale mechanized schemes. The major problem is inability to select tractor and implement as per size that can easily works with the selected tractor. Optionally, to reduce time and increase productivity. A mathematical model for machinery selection was developed. The model was based on the concept of obtaining the optimum width of a machine using power of the tractor and implement and economic optimization method. The model was developed to predict the size of tractor and implement that can be required to complete the farm operations during a specific time. The compatibility of tractor and implement was determined proper matching the available tractor power with the optimum implements width obtained and compute the field time required for a machine to complete a certain operation. The field capacity of the machine and fuel consumption was also determined. There is little difference (at 0.95 and 0.99%) when the model is compared with the Case International Method (plastic ruler) irrespective of soil or machine type. The developed model when tested gave a result of 0.95 % compared with the Cast International method of 0.99 %. However, the model was found sensitive to speed, soil conditions, and cultivable area and not sensitive to purchase price. The results of the model application are found almost identical with actual data of Rahad Agricultural Scheme Sudan except the fuel consumption, which was slightly less in case of the model (MF 120 hp tractor and Baldan5discs plough of 1500 mm width implement). Hence, the developed model can be used to aid decision makers in selecting the optimum tractormachine complement size and in scheduling machinery fleet. This aid in calculating the required working hours of farm machinery like tractor and other farm machines on field operation.The algorithm determines the optimum sizes of farm machinery and tractor power by considering farm sizes, cropping pattern, soil conditions and weather variability. The model was designed so as to minimize farm total cost.The approach matched the tractor implement width via consideration of soil conditions, soil attractive force, engine power and speed.
Keywords: farm machinery, modeling, optimization, selection and management, and working hour.
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ISSN: 2141-7016

Editor in Chief.

Prof. Gui Yun Tian
Professor of Sensor Technologies
School of Electrical, Electronic and Computer Engineering
University of Newcastle
United Kingdom



Copyright © Journal of Emerging Trends in Engineering and Applied Sciences 2010