Diagram showing the basic layout of a Rankine cycle; Fluid is pumped to high pressure going from state 1 to 2. Heat is added in the boiler by the burning of fuel (although heat can be added by any method) boiling the fluid to state 3. The vapour expands through the turbine dropping significantly in pressure and temperature to state 4. Finally the vapour is condensed back to a liquid and fed back in the pump.
File:Rankine cycle layout.png by Andrew.Ainsworth at English Wikipedia
Д.Ильин: vectorization