Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa, 450°C, and 80 m/s, and the exit conditions are 10 kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 12 kg/s. Determine (a) the change in kinetic energy, (b) the power output, and (c) the turbine inlet area. Answers: (a) -1.95 kJ/kg, (b) 10.2

Elements Of Electromagnetics
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Steam flows steadily through an adiabatic turbine. The
inlet conditions of the steam are 10 MPa, 450°C, and 80 m/s,
and the exit conditions are 10 kPa, 92 percent quality, and 50
m/s. The mass flow rate of the steam is 12 kg/s. Determine
(a) the change in kinetic energy, (b) the power output, and
(c) the turbine inlet area. Answers: (a) -1.95 kJ/kg, (b) 10.2
MW, (c) 0.00447 m2
From Steam Table 3:
@ 10 MP, 450 °C, h = 3240.9 kJ/kg
From Steam Table 2: Saturation Pressures
@ 10 kPa, V, = 0.0010102 m/kg, V = 0.010022 m'/kg,
%3D
Transcribed Image Text:Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa, 450°C, and 80 m/s, and the exit conditions are 10 kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 12 kg/s. Determine (a) the change in kinetic energy, (b) the power output, and (c) the turbine inlet area. Answers: (a) -1.95 kJ/kg, (b) 10.2 MW, (c) 0.00447 m2 From Steam Table 3: @ 10 MP, 450 °C, h = 3240.9 kJ/kg From Steam Table 2: Saturation Pressures @ 10 kPa, V, = 0.0010102 m/kg, V = 0.010022 m'/kg, %3D
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