Consider a top secret military power supply for arctic environment operations that will produce electrical power from the soldier's body heat. Model this power supply as a Carnot-cycle heat engine that uses R-22 as its working fluid. The Boiler operates at 30 degrees Celsius and converts saturated liquid into saturated vapor. The condenser operates at -5 degrees celsius.
A) show the cycle on a T-S (temp. vs specific entropy) diagram relative to the 2-phase region and indicate, with arrows, the directions of working fluid flow.
B) Determine the required operating pressures of the boiler and condenser (in kPa).
C) Determine the quality of the R-22 at the entrance and exit of the condenser.