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A Delavel turbine has a mean blade speed of 180 mps. The nozzles are inclined at 17° to the tangent. The steam flow velocity through the nozzle is 550 m/sec. For a mass flow of 3300 Kg/hour and for axial exit conditions, (i) find the inlet and outlet angles of the blade system (ii) the power output (iii) diagram efficiency.

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