****** HW. Steam turbines.part.1****** Q1// the velocity of steam at inlet to simple impulse turbine is 1000 m/s and the nozzle single is 20°. The blade speed is 400 m/s and the blades are symmetrical. Determine the blade angle, tangential force, diagrame power, axial thrust, and the diagram efficiency for frictionless blades. If the relative velocity at exit is reduced by friction to 80% of that at inlet, then recalculates the diagram power, axial thrust, and the diagram efficiency. Take mass flow rate 1 kg/s .Answer (32.5°, 1065.27 N, 426.27 kW, 0 N, 85.25 %,* 383.643 kW, 67.89 N, 76.7%)
****** HW. Steam turbines.part.1****** Q1// the velocity of steam at inlet to simple impulse turbine is 1000 m/s and the nozzle single is 20°. The blade speed is 400 m/s and the blades are symmetrical. Determine the blade angle, tangential force, diagrame power, axial thrust, and the diagram efficiency for frictionless blades. If the relative velocity at exit is reduced by friction to 80% of that at inlet, then recalculates the diagram power, axial thrust, and the diagram efficiency. Take mass flow rate 1 kg/s .Answer (32.5°, 1065.27 N, 426.27 kW, 0 N, 85.25 %,* 383.643 kW, 67.89 N, 76.7%)
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Transcribed Image Text:****** HW. Steam turbines.part.1******
Q1// the velocity of steam at inlet to simple impulse turbine is 1000 m/s and the nozzle single is 20°. The
blade speed is 400 m/s and the blades are symmetrical. Determine the blade angle, tangential force,
diagrame power, axial thrust, and the diagram efficiency for frictionless blades.
If the relative velocity at exit is reduced by friction to 80% of that at inlet, then recalculates the diagram
power, axial thrust, and the diagram efficiency. Take mass flow rate 1 kg/s .Answer (32.5°, 1065.27 N,
426.27 kW, 0 N, 85.25 %,* 383.643 kW, 67.89 N, 76.7%)
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