A PTO disc mower has four nonoverlapping60 cm cuts. Parasitic power loss is2.5 kW/m width, specific cutting energy2.0 kJ/m² and travel speed6 km/h. Find PTO power in kW (two decimals).
Width=4×0.6=2.4 m and speed=6/3.6=1.6667 m/s. Cutting area rate is4 m²/s, requiring2×4=8 kW. Parasitic loss is2.5×2.4=6 kW. Total PTO power=8+6=14.00 kW.
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