Power Plant Diagram Boiling Water Reactor
These pumps and other operating systems in the plant receive their power from the electrical grid.
Power plant diagram boiling water reactor. There are many different reactor types used in nuclear power plants world wide to create nuclear energy. Boiling water reactor bwr a boiling water reactor bwr is cooled and moderated by water. A schematic of a bwr is shown in figure 17 1. Nuclear reactors energy generation.
Select a type from the list below to view a description and diagram of each. Two of the most common reactors are pressurized water reactors and boiling water reactors both of which are light water reactors lwr. Of these only the pressurized water reactors pwrs and boiling water reactors bwrs are in commercial operation in the united states. Light water reactors use ordinary water to cool and heat the nuclear fuel.
Since radioactive materials can be dangerous nuclear power plants have many safety systems to protect workers the public and the. The recirculation system takes water from the reactor vessel and pumps it back in it at an adjustable flow rate which allows operators to control the reactor s power output. In the bwr the water in the reactor core is permitted to boil under a pressure of 75 atmospheres raising the boiling point to 285 c and the steam generated is used directly to drive a steam turbine. It is the second most common type of electricity generating nuclear reactor after the pressurized water reactor pwr which is also a type of light water nuclear reactor.
The main difference between a bwr and pwr is that in a bwr the reactor core heats water which turns to. This steam is then condensed and recycled back to the reactor core. If offsite power is lost emergency cooling water is supplied by other pumps which can be powered by onsite diesel generators. Home nrc library basic references the student corner for educators bwr diagram classroom activity 4 power plant diagram boiling water reactor bwr page last reviewed updated thursday august 10 2017.
Using a geiger counter. A boiling water reactor bwr is a type of light water nuclear reactor used for the generation of electrical power. The reactor s core contains fuel assemblies that are cooled by water circulated using electrically powered pumps. It takes place at a lower pressure as in pwr what allows the water to boil inside the pressure vessel producing the steam that runs the turbines.
The nrc regulates commercial nuclear power plants that generate electricity. Power plant diagram boiling water reactor bwr power plant diagram pressurized water reactor pwr a day in the life of an nrc resident inspector. The main steam system transports steam from the reactor vessel to the turbines that power the plant s electrical generator. There are several types of these power reactors.