What is rankine cycle reheat?

The Rankine cycle with reheat is a modification of the basic Rankine cycle in which steam from the boiler is first expanded through a high-pressure turbine, then reheated at a constant pressure, and finally expanded through a low-pressure turbine to condense in a heat exchanger and return to the boiler. This reheat process improves the thermal efficiency of the cycle by reducing the temperature difference between the steam and the working fluid in the heat exchanger. The reheat cycle also allows the use of larger turbines, which can operate at higher efficiencies due to their increased size. This cycle is commonly used in modern power plants where the emphasis is on improving efficiency and reducing emissions. The Rankine cycle with reheat is a versatile cycle that can be adapted to a wide range of fuels, including coal, oil, and gas.