Page 154 - Advanced Gas Turbine Cycles
P. 154

1.2
                                                                                      - X-  - NDCW FOR GAS TURBINE
                               1
                                                                                      + NDNW FOR COMBINED
                                                                                          PLANT
                                                                                      4- NDHT - FOR GAS TURBINE
                             0.8                                                          AND COMBINED PLANT
                                                                                      -X-   NDTW FOR GAS TURBINE

                             0.6
                                                                                      -t COMBINED PLANT
                                                                                          EFFICIENCY
                             0.4


                                                                                         TANGENT TO NET WORK
                             0.2                                                         (COMBINED PLANT)



                               0
                                1     1.5    2    2.5    3     3.5   4     4.5    5
                                             ISENTROPIC TEMPERATURE RISE
                             Fig. 7.10. Graphical plot showing determination of pressure ratio for maximum efficiency of CCGT plant (after Ref. [ll]),
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