Steam enters an adiabatic turbine at 8 MPa and 500C with a mass flow rate of 3 kg/s and leaves at 30 kPa. The isentropic efficiency of the turbine is 0.90. Neglecting the kinetic energy change of the steam, determine (a) the temperature at the turbine exit and (b) the power output of the turbine.

Air enters the compressor of a gas turbine plant at ambient conditions of 100 kPa and 25 ⁰C with a low velocity and exits at 1 MPa and 347 ⁰C with a velocity of 90 m/s. The compression process is adiabatic, and the power input is 271. Determine the mass flowrate of the air through the compressor.

Steam enters an adiabatic nozzle at 3 MPa and 450°C with a velocity of 50 m/s and exits at0.6 MPa and 400 m/s. If the nozzle has an inlet area of 7.5 m2, determine(a) the exit temperature and(b) the rate of entropy generation for this process.

Devices can be combined to perform a variety of tasks. An adiabatic compressor, with air as the working fluid, is to be powered by an adiabatic steam turbine, which is also driving a generator. Steam enters the turbine at 12.5 MPa and 500 ∘C at a steady rate of 27.30 kg/s and exits at 10 kPa and a quality of 0.8710. Air enters the compressor at 98 kPa and 295.0 K K at a steady rate of 12.600 kg/s and exits at 1 MPa and 635.0 K. For air, MW=29.0 g/mol, Cp=3.5R. Note: The IUPAC sign convention for work is used. Work into the system has a positive value. What is the magnitude of the power delivered to the generator by the turbine? The answer needs to be in MW.