Combined Cycle Auxiliary Systems

 This lesson describes the function and operation of the auxiliary components and systems found in a typical combined cycle power plant. • Describe the function of the closed cooling water system • List the typical heat loads cooled by the auxiliary cooling water system • Explain the reason for maintaining chemistry control of boiler water • Describe the common methods of HRSG chemistry control, including the following: – All volatile treatment – Phosphate treatment – Caustic treatment