What is the main purpose of the MFP recirc flow control?

The main purpose of the main feedwater pump (MFP) recirculation flow control is to ensure that there is adequate flow to the condensers. This is crucial for maintaining efficient heat exchange within the system. The condensers require a consistent supply of water to remove heat from the steam that has passed through the turbine, ensuring that the process operates efficiently and effectively. By controlling the recirc flow, the system can maintain the necessary conditions for optimal heat transfer, avoiding potential overheating and ensuring the reliability of the power plant.

Other roles of the recirc flow, such as adjusting pressure or regulating temperature, are addressed through different systems and mechanisms in the power plant. Filtration of contaminants typically involves separate equipment designed specifically for that purpose, making flow control focused on the condensers the most relevant function in this context.