1. A geared turbine unit delivers 18,500 kW at the buli gear coupling at full power with a propeller shaft speed of 400rpm. Under these conditions, the mechanical losses total 925 kW. At 35 km/hr, the propeller makes 200 rpm and the shaft power is 2000 kW. Assume the mechanical losses vary as the square of the rpm and find the internal power developed at full power. A. 23.459 kW B. 19,425 kW C. 10,543 kW D. 25,453 kW
1. A geared turbine unit delivers 18,500 kW at the buli gear coupling at full power with a propeller shaft speed of 400rpm. Under these conditions, the mechanical losses total 925 kW. At 35 km/hr, the propeller makes 200 rpm and the shaft power is 2000 kW. Assume the mechanical losses vary as the square of the rpm and find the internal power developed at full power. A. 23.459 kW B. 19,425 kW C. 10,543 kW D. 25,453 kW
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Transcribed Image Text:31. A geared turbine unit delivers 18,500 kW at the buli
gear coupling at full power with a propeller shaft
speed of 400rpm. Under these conditions, the
mechanical losses total 925 kVW. At 35 km/hr, the
propeller makes 200 rpm and the shaft power is
2000 kW. Assume the mechanical losses vary as
the square of the rpm and find the internal power
develboped at full power.
A. 23.459 kW
B. 19,425 kW
C. 10,543 kW
D. 25,453 kW
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