How does a boiling water reactor produce electricity?

How does a boiling water reactor produce electricity?

The steam-water mixture leaves the top of the core and enters the two stages of moisture separation where water droplets are removed before the steam is allowed to enter the steamline. The steamline directs the steam to the main turbine, causing it to turn the turbine generator, which produces electricity.

How is heat transferred to the boiling water reactor?

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. There the heat from the primary loop is transferred to a lower-pressure secondary loop also containing water.

What are the advantages of boiling water reactor?

BWRs offer the advantages of simpler plant layout with no need for steam generators as in PWRs (although earlier designs did have them), lower operating pressure, and a somewhat more flexible load following capability.

Why do power plants boil water?

To generate electricity. When uranium atoms are split in the reactor core, an enormous amount of energy is released. The released energy heats up water, which is turned into steam. In a boiling water reactor (BWR), the water around the core is boiled directly and the steam from that boiling process drives the turbine.

How does uranium boil water?

Pressurized water reactors These reactors pump water into the reactor core under high pressure to prevent the water from boiling. The water in the core is heated by nuclear fission and then pumped into tubes inside a heat exchanger. Those tubes heat a separate water source to create steam.

What are the advantages and disadvantages of boiling water?

When water is boiled it kills almost all bacteria present in water. But the water is not 100 percent pure. Boiled Water does not eliminate the chemical pollutants like chlorine present in water. It also does not remove the bad smell of the water.

What material is used in a boiling water reactor?

enriched uranium
Boiling water reactors must use enriched uranium as their nuclear fuel, due to their use of light water. This is because light water absorbs too many neutrons to be used with natural uranium, so the fuel content of fissile Uranium-235 must be increased.

What is the coolant used in boiling water reactor?

Solution(By Examveda Team) A boiling water reactor (BWR) uses demineralized water as a coolant and neutron moderator. Heat is produced by nuclear fission in the reactor core, and this causes the cooling water to boil, producing steam.

What is the operating pressure of a boiling water reactor?

Boiling water reactors operate at pressure and temperature conditions (about 1040 psia and 550°F) that allow bulk boiling inside the core. As the steam escapes through the upper plenum it passes through baffles to remove moisture prior to exiting to the steam turbine.

What is the function of moderator 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.

What is a boiling water reactor?

The Boiling Water Reactor (BWR) BWRs actually boil the water. In both types, water is converted to steam, and then recycled back into water by a part called the condenser, to be used again in the heat process.

How does a nuclear reactor work?

The reactor core generates nuclear fission reactions of the fuel element to obtain thermal energy in a heat generation process. The reactor power is regulated by inserting or removing the control rods from the core, where nuclear chain reactions occur. In the BWR reactor, the water used is light water (ordinary water).

What percentage of nuclear reactors use the BWR reactor?

Approximately 22\% of the nuclear reactors installed in the different nuclear power plants use the BWR reactor. The BWR is a power reactor; that is, it is designed to generate electrical power. The most important feature of the Boiling Water Reactor (BWR) is that it uses light water (ordinary water) as a neutron moderator and a core coolant.

How is the reactor power regulated in nuclear reactors?

The reactor power is regulated by inserting or removing the control rods from the core, where nuclear chain reactions occur. In the BWR reactor, the water used is light water (ordinary water).