An impulse turbine with a single row wheel is to develop 99.3 kW, the blade speed...

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An impulse turbine with a single row wheel is to develop 99.3 kW, the blade speed being 150 m/sec. A mass of 2 kg of steam per second is to flow from the nozzles at a speed of 350 m/sec. The velocity coefficient of the blades may be assumed to be 0.8 while the steam is to flow axially after passing through the blades ring. Determine the nozzle angle and the blade angles at inlet and exit assuming no shock. Estimate also the diagram efficiency of the blading. (10) An impulse turbine with a single row wheel is to develop 99.3 kW, the blade speed being 150 m/sec. A mass of 2 kg of steam per second is to flow from the nozzles at a speed of 350 m/sec. The velocity coefficient of the blades may be assumed to be 0.8 while the steam is to flow axially after passing through the blades ring. Determine the nozzle angle and the blade angles at inlet and exit assuming no shock. Estimate also the diagram efficiency of the blading. (10)

Answer rating: 100% (QA)

Given data Power output P 993 kW 99300 W Blade speed u 150 ms Mass flow rate of steam m 2 kgs 2000 g... View the full answer