Cummings Bush
04/28/2024 · High School
a Gas enters an impulse turbine at a velocity of \( 2000 \mathrm{~m} / \mathrm{s} \) making an angle of \( 20^{\circ} \) with the plane of rotation. The average dia- meter of the turbine wheel is \( 1,272 \mathrm{~m} \) while it receives 34 kg gas per minute so that the wheel can rotate at 12000 rpm . The moving outlet blade has an angle of \( 35^{\circ} \). Consider a friction loss of \( 20 \% \) and determine: The velocity and angle at which the gas leaves the turbine The diagram efficiency The power generated in the turbine ( \( 600 \mathrm{~m} / \mathrm{s} ; 86,5^{\circ} ; 76,4 \% ; 865 \mathrm{~kW} \) )
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The outlet velocity of the gas is approximately 600 m/s, the angle at which the gas leaves the turbine is approximately 86.5°, the diagram efficiency is approximately 76.4%, and the power generated in the turbine is approximately 865 kW.
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