Determine the overall pressure ratio

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Reference no: EM131057221

An IFR turbine is required with a power output of 300 kW driven by a supply of gas at a stagnation pressure of 222 kPa, at a stagnation temperature of 1100 K, and at a flow rate of 1.5 kg/s. The turbine selected by the engineer has 13 vanes and preliminary tests indicate it should have a total-to-static efficiency of 0.86. Based upon the optimum efficiency design method, sketch the appropriate velocity diagrams for the turbine and determine

a. the absolute and relative flow angles at rotor inlet;

b. the overall pressure ratio;

c. the rotor tip speed.

Reference no: EM131057221

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