What are the key components of a nuclear reactor core?

In a nuclear reactor core, several key components work together to facilitate the process of nuclear fission and generate nuclear energy. These components include fuel rods, control rods, coolant, and a moderator.

Fuel rods

Fuel rods are one of the most essential components of a nuclear reactor core. These rods contain pellets of enriched uranium or plutonium that undergo nuclear fission, releasing a tremendous amount of heat energy in the process.

Control rods

Control rods are used to regulate the nuclear reaction within the reactor core. By adjusting the position of these rods, operators can control the rate of fission and manage the temperature and power output of the reactor.

Coolant

Coolant is circulated through the reactor core to absorb the heat generated by the nuclear fission process. This coolant transfers the heat to a separate system where it is used to produce steam, which then drives turbines to generate electricity.

Modifier

A moderator is used to slow down the neutrons produced during fission reactions, increasing the probability of additional fission events. This helps sustain the nuclear chain reaction within the reactor core.

Overall, these components work in tandem to harness the power of nuclear energy and produce electricity in nuclear power plants.