What is the primary role of steam generation in nuclear propulsion?

The primary role of steam generation in nuclear propulsion is to produce steam that drives turbines for propulsion. In a nuclear-powered vessel, the reactor generates heat through nuclear fission. This heat is transferred to a coolant, typically water, which is then converted into steam. The high-pressure steam produced is directed to turbines, which convert the thermal energy from the steam into mechanical energy, causing the turbines to spin and ultimately propelling the vessel.

This process is integral to the operation of a nuclear propulsion system, as it efficiently harnesses the immense energy generated in a controlled manner to drive the ship's propulsion system. The turbines can be coupled to reduction gears that further optimize the mechanical output to turn the ship's propellers, resulting in movement through the water. This application of steam generation is a critical aspect of achieving propulsion in nuclear-powered submarines and aircraft carriers, where reliance on fossil fuels is minimized in favor of nuclear energy's advantages in endurance and operational capabilities.