What is Nuclear Reactor explain its principle construction and working?

Nuclear reactors operate on the principle of nuclear fission, the process in which a heavy atomic nucleus splits into two smaller fragments. … A large amount of energy is released in this process, and this energy is the basis of nuclear power systems.

What is nuclear reactor its principle construction and working class 12?

Principle: It works on the principle of achieving controlled chain reaction of Uranium 238U enriched with 235U and as a result generating huge amount of energy. The controlled chain is made possible by : inserting rods that can absorb neutrons(control rods) and use them to maintain the reaction rate. …

What is nuclear reactor Class 12?

Class 12 Physics Nuclei. Nuclear Reactor. Nuclear Reactor. Nuclear reactors are useful in producing electricity. A nuclear reactor is an arrangement to generate electricity whichmakes use of nuclear fission.

What do you mean by nuclear reactor?

A nuclear reactor, formerly known as an atomic pile, is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion.

IT\'S FUNNING:  How are alternative sources of energy helpful?

What is nuclear reactor and its types?

Nuclear power plants in commercial operation or operable

Reactor type Main countries Moderator
Boiling water reactor (BWR) USA, Japan, Sweden water
Pressurised heavy water reactor (PHWR) Canada, India heavy water
Advanced gas-cooled reactor (AGR) UK graphite
Light water graphite reactor (LWGR) Russia graphite

What is Nuclear Reactor Class 10?

A nuclear reactor is the most important part of a nuclear power plant. It is where the nuclear chain reactions occur that produce energy by fission. The heat thus produced can be used to produce electricity. The main purpose of a reactor is to contain and control the energy released.

What is the working principle of nuclear power plant?

In nuclear power plants, neutrons collide with uranium atoms, splitting them. This split releases neutrons from the uranium that in turn collide with other atoms, causing a chain reaction. This chain reaction is controlled with “control rods” that absorb neutrons.

What is nuclear reactor Slideshare?

INTRODUCTION • A nuclear reactor produces and controls the release of energy from splitting the atoms of certain elements. In a nuclear power reactor, the energy released is used as heat to make steam to generate electricity.

What is a nuclear reactor enumerate and explain essential components of a nuclear reactor?

Components of a Reactor

Any nuclear reactor that produces power via the fission of uranium (U-235) or plutonium (Pu-239) by bombardment with neutrons must have at least five components: nuclear fuel consisting of fissionable material, a nuclear moderator, reactor coolant, control rods, and a shield/containment system.

What are three main parts of a nuclear reactor explain in short functions of each?

Main Components of a Nuclear Reactor:

IT\'S FUNNING:  How much electricity does the human body produce?

⦁ The Core: It contains all the fuel and generates the heat required for energy production. ⦁ The Containment: The enveloping structure that separated the nuclear reactor from the surrounding environment.

Which is India’s first nuclear reactor?

India’s and Asia’s first nuclear reactor, Apsara reached criticality at 3:45 p.m on 4 August 1956 and was inaugurated by Prime Minister Nehru on 20 January 1957.

How does nuclear energy work step by step?

In a nuclear energy plant, heat is produced from splitting atoms – a process called nuclear fission.

  1. Nuclear reactor creates heat that is used to make steam.
  2. The steam turns a turbine connected to an electromagnet, called a generator.
  3. The generator produces electricity.

What starts a nuclear reactor?

A nuclear reactor is driven by the splitting of atoms, a process called fission, where a particle (a ‘neutron’) is fired at an atom, which then fissions into two smaller atoms and some additional neutrons.