Chapter 8, Problem 8.31P

A steam turbine has an inlet of 3 kg/s water at 1200 kPa and 350°C with a velocity of 15 m/s. The exit is at 100 kPa, 150°C and very low velocity. Find the specific work and the power produced.

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During an isentropic process of 3 lb/sec of air, the temperature increases from 50 deg F to 290 deg F. Find the work for a steady flow process.

Number 3

A pressure cooker 6 ltr

A compressor In a refrigerator recelves R-410A at 150kPa, -40°C, and It brings the vapor up to 600 kPa using an actual specific work of 60 kJ/kg In an adlabatic compression. Surrounding temperature Is 25°C. Find the specific reversible work and the Irreversibility.

steam at 3.5 MPa with a quality of 89%, enters an adiabatic diffuser with velocity of 30.5 m/s and leaves at a lo of 4 m/s and 0.2 MPa. Find all the possible exit properties of this steam. Assume: Adiabatic, steady-flow system and neglect the potential energies and work.

Helium at 100 kPa, 500 K is in a piston/cylinder setup and is compressed to a final pressure of 800 kPa. Consider helium as an ideal gas with constant specific heat capacities. Find the final temperature and the specific work if the above process is (i) reversible adiabatic (ii) reversible isothermal