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What does a reactor do?

Greg Schlom|February 1, 2021
The main job of a reactor is to house and control nuclear fission—a process where atoms split and release energy. Fission and Fusion: What is the Difference? Reactors use uranium for nuclear fuel. The uranium is processed into small ceramic pellets and stacked together into sealed metal tubes called fuel rods.

Accordingly, what are the types of reactors?

There are two basic types: the pressurized-water reactor (PWR) and the boiling-water reactor (BWR).

Also to know, what is electrical reactor?

Essentially a reactor is an inductor. Physically it is a coil of wire that allows a magnetic field to form around the coil when current flows through it. When energized, it is an electric magnet with the strength of the field being proportional to the amperage flowing and the number of turns.

What is a synonym for reactor?

  • atomic reactor.
  • chain reactor.
  • chain-reacting pile.
  • fission reactor.
  • pile.
  • reactor.
  • reactor pile.

Is a thorium reactor possible?

Thorium cannot in itself power a reactor; unlike natural uranium, it does not contain enough fissile material to initiate a nuclear chain reaction. As a result it must first be bombarded with neutrons to produce the highly radioactive isotope uranium-233 – 'so these are really U-233 reactors,' says Karamoskos.

Is reactor a word?

noun. a person or thing that reacts or undergoes reaction. Electricity. Also called atomic pile, chain reactor, chain-reacting pile, nuclear reactor, pile.

What is difference between reactor and transformer?

Main Differences. Shunt Reactor and Transformer both appear similar in construction. While a Power Transformer is designed for efficient power transfer from one voltage system to another, a shunt reactor is intended only to consume reactive VArs (or in other words it can be stated as to produce lagging VArs).

What's inside a nuclear reactor?

Nuclear reactors are designed to sustain an ongoing chain reaction of fission; they are filled with a specially designed, solid uranium fuel and surrounded by water, which facilitates the process. When the reactor starts, uranium atoms will split, releasing neutrons and heat.

What is SSR reactor?

The batch reactor or simply a stainless steel reactor is the generic term for a type of vessel widely used in the process industries. They are usually fabricated in steel, stainless steel, glass-lined steel, glass or exotic alloy. Liquids and solids are usually charged via connections in the top cover of the reactor.

How much fuel does a nuclear reactor use?

About 27 tonnes of uranium – around 18 million fuel pellets housed in over 50,000 fuel rods – is required each year for a 1000 MWe pressurized water reactor. In contrast, a coal power station of equivalent size requires more than two and a half million tonnes of coal to produce as much electricity.

How does a light water reactor work?

Light water reactors use water as both and a coolant method and a neutron moderator that reduces the speed of fast moving neutrons. Light water reactors produce heat by controlled nuclear fission. The heat generated by controlled nuclear fission turns the water into steam, which drives the power- generating turbines.

How a nuclear reactor is started?

The rate of nuclear fission in the core of the reactor is controlled by 'control elements' that absorb neutrons. In order to start up the reactor, the control elements are withdrawn one-by-one very slowly, allowing the reaction to progress, until the desired reactor power is reached.

How much power does a nuclear reactor produce?

Nuclear energy has been powering the U.S. grid for the past 6 decades and produces around 1 gigawatt of power per plant on average.

Why is nuclear energy bad?

Nuclear energy produces radioactive waste

A major environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to human health for thousands of years.

How hot is a nuclear reactor?

300 degrees Celsius

What is the difference between shunt reactor and series reactor?

Key points in Difference between Shunt Reactor and series reactor: Shunt reactor limits the over voltage but series reactor limits the high current. Shunt reactor uses as reactive power absorber, series reactor uses as current limiter and increase the impedance of the circuit.

How Big Is the reactor in a nuclear submarine?

Reactor sizes range up to ~500 MWt (about 165 MWe) in the larger submarines and surface ships. The French Rubis-class submarines have a 48 MW reactor that needs no refueling for 30 years. The nuclear navies of the Russian Federation, the United States, and the United Kingdom rely on steam turbine propulsion.

What is a reactor system?

A nuclear reactor is a system that contains and controls sustained nuclear chain reactions. Reactors are used for generating electricity, moving aircraft carriers and submarines, producing medical isotopes for imaging and cancer treatment, and for conducting research.

What type of uranium is used in a nuclear reactor?

Most commercial reactor fuel uses low enriched uranium (LEU) enriched to between 3 percent and 5 percent 235U. Uranium between 3 and 5 percent 235U is sometimes referred to as “reactor-grade uranium.” Highly Enriched Uranium – contains a 235U concentration greater than 20 percent.

What is a nuclear reactor core made of?

Inside each fuel rod, pellets of uranium, or more commonly uranium oxide, are stacked end to end. Also inside the core are control rods, filled with pellets of substances like boron or hafnium or cadmium that readily capture neutrons.


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