Your question: How are nuclear reactions controlled within a nuclear power plant?

How are nuclear chain reactions controlled in nuclear power plants?

The chain reaction is controlled by Boron control rods. … When the Boron absorbs the neutrons then the chain reaction will slow down due to lack of neutrons producing reactions. In times of high energy demand, control rods are raised allowing more reactions to take place.

How do you control the rate of a nuclear reaction in a reactor?

Answers. In a fission reactor, control rods absorb neutrons to control the rate of a reaction. Lowering the rods into the reactor decreases the rate of fission and removing them increases the rate.

How are nuclear chain reactions controlled in nuclear power plants quizlet?

By control rods and the moderator. They absorb neutrons allowing the reactor to produce energy at a steady rate. In a controlled chain reaction, on average only one neutron from each fission will strike another nucleus and cause further stimulated fission to occur.

What is used to keep the chain reaction under control in a nuclear reactor?

To prevent the fuel reaction run away in a nuclear reactor dampening is done. Control rods are used for this process. They are composed of chemical elements such as boron,silver,indium and cadmium.

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How does a nuclear power plant operate?

Nuclear power plants use heat produced during nuclear fission to heat water. … The heat produced during nuclear fission in the reactor core is used to boil water into steam, which turns the blades of a steam turbine. As the turbine blades turn, they drive generators that make electricity.

What is the function of moderators in nuclear reactor?

The moderator helps slow down the neutrons produced by fission to sustain the chain reaction. Control rods can then be inserted into the reactor core to reduce the reaction rate or withdrawn to increase it.

How controllable is a nuclear fusion reaction?

Fusion, unlike fission, does not involve a chain reaction, so the process can be stopped eliminating the risk of a meltdown. Fusion does not produce nuclear waste, only the core of the reactor remains radioactive and only for 100 years.

Which material is used as controller in nuclear reactor?

A rod, plate, or tube containing a material such as hafnium, boron, etc., used to control the power of a nuclear reactor. By absorbing neutrons, a control rod prevents the neutrons from causing further fissions.