The path (1- 2s) is for an ideal isentropic compressor, the path (1 - 2) is for a real compressor. The path (2 - 3) takes place in the condensing tank, and the path (4 - 1) is in the evaporating tank.

Caption The phase diagram shows the state of water (H2O) under very high pressure (X-axis) and temperature conditions (Y-axis). These conditions apply in the interior of the ice planets Uranus and ...