What is nuclear reactor?
Nuclear reactors are the heart of a nuclear power plant. They contain and control nuclear chain reactions that produce heat through a physical process called fission. That heat is used to make steam that spins a turbine to create electricity.
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 a nuclear reactor simple?
A nuclear reactor is a machine that uses fission to generate heat. … Most nuclear reactors are used to make electricity. In nuclear power plants heat from the fission reactions in the reactor changes water into steam. The steam is then used to power electric turbines which make electricity.
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.
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.
Where is reactor used?
Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat from nuclear fission is passed to a working fluid (water or gas), which in turn runs through steam turbines. These either drive a ship’s propellers or turn electrical generators’ shafts.
What is reactor type?
There are two basic types: the pressurized-water reactor (PWR) and the boiling-water reactor (BWR). In the PWR, water at high pressure and temperature removes heat from the core and is transported to a steam generator.
What are the 2 types of nuclear reactors?
U.S. nuclear power plants use two types of nuclear reactors
Nuclear power plants in the United States have either a boiling-water reactor or a pressurized-water reactor.
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 a nuclear reactor work?
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 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 is nuclear reactor explain its principle construction and working?
A nuclear reactor works on the principles of generating great amounts of energy by achieving controlled chain reaction of Uranium 238U enriched with 235U. This is made possible by: 1. Slowing down the fission neutrons to thermal neutrons using a moderator. … By using control rods of a material which can absorb neutrons.