Superheaters and reheaters

Shaun P. Hennessey,    Nooter/Eriksen, Inc., Fenton, MO, United States


This chapter deals with the special nature of the thermal/hydraulic and mechanical/structural designs of superheaters in the HRSG setting. Superheaters come in many forms within the typical three-pressure plus reheat HRSG. Requirements associated with the various hot end high-pressure superheaters and reheaters are discussed and contrasted to the needs of intermediate-pressure and low-pressure superheaters typically found in the cooler portions downstream of the high-pressure evaporator. Overviews of potential coil layout and design considerations used when selecting the optimum superheater mechanical/structural arrangement relative to ...

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