Page 160 - Advanced Gas Turbine Cycles

Chapter 7. The combined cycle gas turbine (CCGT) 129

water from condenser temperature (Ta to the prescribed minimum temperature
(Tb) by a pre-heating loop. This modified plant should give higher efficiency
than a plant which uses bled steam to heat the feed water to Tb.
(ii) The two pressure steam cycle using fuel containing sulphur may require the
introduction of substantial feed heating and a pre-heating loop. In practice, this
appears to provide the highest overall efficiency of the combined plant [2].

References

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