Chapter 7, Problem 7.79P

A factory generates compressed air from 100 kPa, 17°C by compression to 800 kPa, 500 K, after which it cools in a constant pressure cooler to 300 K, (see Fig. P4.36). Find the specific compressor work and the specific heat transfer in the cooler. 1 2 3 Compressor -w. Compressor section Cooler section

A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 350°C and velocity of 15 m/s. The exit is at 100 kPa, x = 1 and very low velocity. Find the specific work and the power produced.

Please be very detailed

Please be very detailed

3) A steam with a quality of 49%, enters an adiabatic nozzle at 3.5 MPa and leaves at 0.4 MPa and 140°C with a flow of 7 m/s. Find the entrance velocity, in m/s.

Number 4

I need the answer as soon as possible

6. Superheated steam at 10MPA, 400°C is flow through an adiabatic nozzle of back pressure IMpa, and exit area of 10cm2. Find the Mass flow rate through the nozzle, the throat area that giveMaximum mass flow rat

4. An evaporator has R-410A at -20°C and quality 80% flowing in. The exit flow is saturated vapor at -20°C. a. Consider the heating to be a reversible process and find the specific heat transfer from the entropy balance. (Answer: 48.7 kJ/kg) b. If the heat source was at -10°C and the inlet and outlet streams still have the same properties as in a), calculate the specific entropy generation? (Answer: 7.33 J/(kg K))