MFP recirc flow is typically discharged to which condenser?

The correct answer identifies that the Main Feedwater Pump (MFP) recirculation flow is typically discharged to the High-Pressure (HP) Condenser. This is due to the operational needs of maintaining the efficiency of the feedwater pumps and the overall thermal efficiency of the steam cycle.

In a steam power plant, the MFP must operate effectively across a range of conditions, and recirculating some of the flow helps to maintain the pump performance when the unit is operating at lower loads. By directing the recirc flow into the HP Condenser, the system can maintain a sufficiently high pressure and temperature in the feedwater system, which is essential for efficient boiler operation and steam generation.

The HP Condenser plays a critical role in condensing steam from the turbine and returning it to the feedwater system. By discharging recirculated water here, the temperature and pressure conditions are optimized, enabling better heat transfer and minimizing the risk of water hammer or cavitation within the pumping system.

The other condensers mentioned, like the LP, Intermediate Pressure, and Primary Condensers serve different purposes within the cycle and do not typically receive MFP recirc flow, making them less suitable for this specific function.