Which component is specifically utilized by Pressurized Water Reactors to manage coolant separation?

The steam generator is crucial in pressurized water reactors (PWRs) for managing coolant separation. In a PWR, water is heated under high pressure in the reactor core, but it does not boil due to the pressure. The heated water flows to the steam generator, where it transfers its heat to a secondary water circuit. This secondary circuit consists of water that is allowed to boil and transform into steam.

This steam then drives the turbines to generate electricity. The process of having a separate circuit for steam creation is essential for maintaining appropriate pressure conditions in the reactor core while enabling efficient energy extraction. The steam generator thus plays a vital role in separating the coolant from direct contact with the steam used to drive the turbines, which is a fundamental operational aspect of PWRs.