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390    CHAPTER 17 GAS TURBINES




                                                   Heat
                                                  exchanger
                                          Exhaust        5
                                             6
                                                         3
                                                         Fuel
                                          Air
                                                2        4
                                          1
                                               C          T
                                                              Power

             FIGURE 17.8
             Gas turbine and heat exchanger.










                                       Maximum                        4
                                      Temperature
                              Temperature, T






                                     Limiting cycle
                                    for heat exchange


                                                       3
                                                                      5


                                                  Heat
                                                 exchange
                                      2
                                                            6






                                       1

                                                                        Entropy, s
             FIGURE 17.9
             Gas turbine cycle with heat exchange.
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