Reheat Process How does the reheat process work? - A heat recovery steam generator after the boiler provides superheated steam at high temperature and high pressure. The exact parameters vary, depending on the type of plant in which the process is used.
- The steam is admitted into the HP-turbine. In the turbine, there are several stages (a row of stationary blades and a row of rotating blades) where the steam will “expand” as the steam pressure reduces after each stage. First the steam increases the speed in the stationary blade and then the high velocity steam enters the rotating blades and forces the rotor to move.
- From the HP-turbine exhaust the steam is taken back into the steam generator for re-heating to raise the low pressure steam back to the original temperature.
- The re-heated steam is now admitted into the LP-turbine to generate further power in a set of stages, finally entering into a vacuum condenser where the remaining steam is condensed. The resulting water is pumped back into the steam generator to generate the steam used in the closed loop process.
- The two turbine modules are connected to an electrical generator, providing power to consumers via the grid.
 Reheat cycle
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