(In any steam/ Rankine cycle plant such as present-day coal and nuclear plants there is a loss of about two-thirds of the energy due to the intrinsic limitations of turning heat into mechanical energy.) To remove and dump surplus heat from this steam circuit.To convey heat from the reactor core to the steam turbines.The most common types of nuclear power plants use water for cooling in two ways: Nuclear power plants have greater flexibility in location than coal-fired plants due to fuel logistics, giving them more potential for their siting to be determined by cooling considerations.However, currently operating nuclear plants often do have slightly lower thermal efficiency than coal counterparts of similar age, and coal plants discharge some waste heat with combustion gases, whereas nuclear plants rely on water. ![]() It has essentially nothing to do with whether it is fuelled by coal, gas or uranium. The amount of cooling required by any steam-cycle power plant (of a given size) is determined by its thermal efficiency.
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