Developing the optimum cycle chemistry provides the key to reliability for combined cycle/HRSG plants

Barry Dooley,    Structural Integrity Associates, Southport, United Kingdom


The cycle chemistry treatments and control on combined cycle plants influence a high percentage of the availability and reliability losses and safety issues experienced on these plants worldwide. As this is a very large and important area this chapter has four main parts. The first part briefly introduces the equipment and materials of construction and how heat recovery steam generator (HRSG) reliability depends on various protective oxides, the formation of which relates directly to the cycle chemistry treatments that are used in the condensate, feedwater, ...

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