The axial flow gas turbine stage shown in Fig. P12.67 has a mean blade radius of \(R=5.0 \mathrm{in}\)., a rotational speed of \(15,000 \mathrm{rpm}\), a mass flow rate of \(10.0 \mathrm{lbm} / \mathrm{s}, W_{1}=972 \mathrm{ft} / \mathrm{s}, V_{1}=1560 \mathrm{ft} / \mathrm{s}, \alpha_{1}=\) \(20^{\circ}, W_{2}=874 \mathrm{ft} / \mathrm{s}, V_{2}=483 \mathrm{ft} / \mathrm{s}\), and \(\alpha_{2}=99.4^{\circ}\). Find the power transmitted from the gas to the turbine blade

Figure P12.67

Transcribed Image Text:

U U 02 W Blade V2 V W Section AA A R = 5 in. A