What is the primary purpose of auxiliary feedwater systems in nuclear power plants?

The primary purpose of auxiliary feedwater systems in nuclear power plants is to provide a backup water supply during emergencies. Auxiliary feedwater systems are critical safety components designed to ensure that there is a reliable source of water to cool the reactor core in case of an event where the primary coolant system is compromised or cannot operate effectively.

In the event of a loss of coolant accident or other emergencies, these systems automatically supply water to the steam generators or directly to the reactor, helping to remove residual heat and prevent overheating, which could lead to a meltdown or release of radioactive materials.

This function is essential for maintaining the safety and integrity of the nuclear plant, making the performance of the auxiliary feedwater systems pivotal during crises.