Determine the nozzle exit height of this stage

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A 20 MW back-pressure turbine receives steam at 4 MPa and 300°C, exhausting from the last stage at 0.35 MPa. The stage efficiency is 0.85, reheat factor 1.04, and external losses 2% of the actual isentropic enthalpy drop. Determine the rate of steam flow. At the exit from the first stage nozzles, the steam velocity is 244 m/s, specific volume 68.6 dm3 /kg, mean diameter 762 mm, and steam exit angle 76 °measured from the axial direction. Determine the nozzle exit height of this stage.

Reference no: EM131057368

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