The mean blade diameter of a single-stage impulse turbine is 1 960 mm and it rotates at a speed of 3 898 r/min. The blade speed is 0,4 of the speed of the gas velocity leaving the nozzles. The nozzles are inclined at an angle of 22° to the plane of the wheel and the blading is symmetrical. The gas loses 12% velocity, due to friction, as it moves over the blades. The turbine uses 100 kg of gas every minute. 1.1 1.2 Calculate the peripheral speed of the blade Calculate the nozzle velocity of the gasW09
The mean blade diameter of a single-stage impulse turbine is 1 960 mm and it rotates at a speed of 3 898 r/min. The blade speed is 0,4 of the speed of the gas velocity leaving the nozzles. The nozzles are inclined at an angle of 22° to the plane of the wheel and the blading is symmetrical. The gas loses 12% velocity, due to friction, as it moves over the blades. The turbine uses 100 kg of gas every minute. 1.1 1.2 Calculate the peripheral speed of the blade Calculate the nozzle velocity of the gasW09
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Transcribed Image Text:The mean blade diameter of a single-stage impulse turbine is 1 960 mm and it rotates
at a speed of 3 898 r/min. The blade speed is 0,4 of the speed of the gas velocity
leaving the nozzles. The nozzles are inclined at an angle of 22° to the plane of the wheel
and the blading is symmetrical. The gas loses 12% velocity, due to friction, as it moves
over the blades. The turbine uses 100 kg of gas every minute.
1.1
1.2
Calculate the peripheral speed of the blade
Calculate the nozzle velocity of the gas EWOS
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