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# Agriculture Engineering-chptr14

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### Agriculture Engineering-chptr14

1. 1. MACHINECAPACITY
2. 2. INTRODUCTION The capacity of a machine is its rate ofperformance The performance capacity will be measured interms of acres per hour (ha./hr), tons per hour,liter per minute, etc. Understanding how to estimate capacities of machines will help farm managers plan to buy for future use To know machine capacities for selection of power units and equipment that can complete field operations on time Important to avoid the added expenses of larger than necessary machines
3. 3. Factors That Determined Machine Capacity1. Speed - average rate of travel in km/hr.2. Width - distance in feet/meters across the processing portion of the machine3. Efficiency – ratio of effective capacity of a machine to its theoretical capacity – an indicator of how much time is spent working versus turning, filling hoppers and other jobs
4. 4. Theoretical Field Capacity (TFC) Is the maximum possible capacity obtainable at a given speed, assuming the machine is using its full width TFC uses two of the factors – speed and width.Effective Field Capacity (EFC) The best way to determine EFC of a machine is to make an accurate check of the number of acres (hectares) actually covered over a long period of time EFC brings in the factor of efficiency. This capacity determination represent the real life or actual capacity obtainable over a period of time
5. 5. THANK YOU