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 power block is that the combustion rotary engine generator set.
The second island is that the HRSG turbine generator set.
The HRSG absorbs energy from the exhaust gas stream of the combustion rotary engine. The absorbed energy is reborn to thermal energy as hot temperature and pressure steam. The hard-hitting steam is then utilized in a turbine generator set to supply movement energy. The shaft of the turbine is connected to an electrical generator that then produces wattage.
The waste heat is recovered from the combustion rotary engine exhaust gas stream through absorption by the HRSG. The exhaust gas stream could be a massive mass flow with a temperature of up to one,150F.
Most massive HRSGs will be classified as a double-wide, triple-pressure level with heat, a supplementary dismissed unit of natural circulation design, put in behind a fossil fuel dismissed combustion rotary engine.
The steam generated by the HRSG is provided to the turbine that drives the electrical generator system.
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