Find all four energy transfers and the cycle efficiency

Question

Problem

1. A power plant for a polar expedition uses ammonia, which is heated to 80^oC at 1000 kPa in the boiler, and the condenser is maintained at -15^oC. Find the cycle efficiency.

2. A Rankine cycle with R-410a has the boiler at 3 MPa superheating to 180^oC, and the condenser operates at 800 kPa. Find all four energy transfers and the cycle efficiency.

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.