Air-standard cooled cycles

The initial analysis [5] is presented by reference to closed a/s cycles using a perfect gas as a working fluid in an externally heated plant. As for the uncooled cycles. studied in Chapter 3, it is argued subsequently that many of the conclusions reached in this way 

Chapter 4. Cycle efficiency with turbine cooling (cooling flow rales specifled) 

The arguments of this section are developed sequentially, starting with internally reversible cycles and then considering irreversibilities. Here we concentrate on the gas turbine with simple closed or open cycle (CHT, CBT). 

Cycle [CHTJj ci with single step cooling 

We assume low velocity (constant pressure) mixing of the extra cooling gas mass flow (ifi) at absolute temperature T2 with the gas stream (of unit mass flow), which has been heated to the maximum temperature = Tg. From the steady flow energy equation, if both streams have the same specific heat (Cp), it follows that 

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