HRSG Function The exhaust gas from the combustion rotary engine becomes the warmth supply for the Rankine cycle portion of the combined of a cycle. Steam is generated in the heat recovery steam generator (HRSG). The HRSG recovers the waste heat on the market in the combustion rotary engine exhaust gas. The recovered heat is employed to generate steam at high pressure and hot temperature , and also the steam is then accustomed generate power in the steam boiler/generator. The HRSG is largely a device composed of a series of preheaters ( economizers ), evaporator, reheaters, and superheaters. The HRSG also has supplemental firing in the duct that raises the gas temperature and mass flow. This section is meant to produce rotary engine operators with a basic understanding of the heat recovery steam generator (HRSG) design and operation. the facility generation block of the power produces electric power in 2 separate islands: The first island inside the combined-cycle...