Operation and controls

Glen L. Bostick,    Manager of Systems Engineering (Instrumentation & Controls, Research & Development, Innovation & Patents), Fenton, MO, United States


This chapter seeks to provide the reader with a basic understanding of the factors influencing the operation and control of a heat recovery steam generator (HRSG). While intrinsically a passive device with the HRSG responding to a multitude of plant influences impacting steam production and temperature, there are several fundamental controls associated with a natural circulation HRSG that are common and, for the most part, independent of the original equipment manufacturer. In addition, several authorities, such as ASME and the NFPA, have defined required schemas ...

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