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Question: 542 and a gas turbine stage has an initial absolute...

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/5.42. and A gas turbine stage has an initial absolute pressure of 350 kPa temperature 565°C and negligible initial velocity. At the mean radius 0.36 m, the conditions are nozzle exit absolute static pressure is 207 kPa, nozzle exit flow angle is 68 and stage rcaction is 0.2. Determine the flow coefficient, stage loading factor. stage reaction and air and blade angles at the mean, hub and up. The hub radius and speed are respectively 0.31 m nnd 8O00 rpm. Assume that the stage is to have a free vortex swirl al this speed. Take Cp-1,148 kl/kg-K and r 1.33. (MKU-Nov. 96) (MU-Oci. 96) Neglect the losscs. фт -0.602, Rm --0.2 l.m-1.38 1.h-70.82.

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