and rejected heat while doing external work.Р1.3.2 The Rankine cycleРThe Carnot cycle postulates a cylinder with perfectly insulating walls and a head which can be switched at will from Being a conductor to being an insulator. Even with modifications to enable it to operate in a world where such things are not obtainable, it would have probably remained a scientific concept with no practical application, had not a Scottish professor of engineering, William Rankine, proposed a modification to it at the beginning of the twentieth century [I]. The concepts that Rankine developed form the basis of all thermal power plants in use today. Even bined-cycle power plants use his cycle for one of the two phases of their operation.РFigure 1.3 illustrates the principle of the Rankine cycle. Starting at
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