Page 91 - Advanced Gas Turbine Cycles
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Chapter 4. Cycle eficiency with turbine cooling (cooling flow rates specified) 61
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ae 50
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z 45
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k40
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F
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30
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20
1 1.5 2 2.5 3 3.5 4
ISENTROPIC TEMPERATURE RATIO
Fig. 4.10. Calculation of efficiency of simple [CBT] plant-single-step cooled [CBT]lcl as a function of
isentropic temperature ratio with maximum temperature (TcJ as a parameter.
300 400 500 600 700 800 900 1000
SPECIFIC WORK [kJlkg GAS]
Fig. 4.1 1. Calculation of efficiency of simple [CBT] plants-single-step cooled [CBT]lcl and uncooled
[CBTIIU--as a function of specific work with pressure ratio (r) and maximum temperature (TCJ as parameters
and with q*= qp~ = 0.9, Thl= 1073 K (after Ref. [5]).
