Find the power produced and the rate of entropy generation

Question

Problem

1. A compressor in a commercial refrigerator receives R-410a at -25^oC and x = 1. The exit is at 2000 kPa, 80^oC. Neglect kinetic energies and find the specific entropy generation

2. A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 400^oC with velocity of 15 m/s. The exit is at 100 kPa, 150^oC and very low velocity. Find the power produced and the rate of entropy generation.

3. A factory generates compressed air from ambient 100 kPa, 17^oC by compression to 1000 kPa, 600 K, after which it cools in a constant-pressure cooler to 300 K by heat transfer to the ambient. Find the specific entropy generation in the compressor and in the cooler.

The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.