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What is PWR and BWR?
The main difference between a BWR and PWR is that in a BWR, the reactor core heats water, which turns to steam and then drives a steam turbine. In a PWR, the reactor core heats water, which does not boil. This hot water then exchanges heat with a lower pressure water system, which turns to steam and drives the turbine.
What is PWR power plant?
The PWR plant is the most common type of nuclear power reactor in the world. A PWR has two water systems. One is called the reactor(primary) system that retrieves heat generated in the reactor, and the other is called the turbine(secondary) system that produces electric power with steam generated by that heat.
What fuel is used in PWR?
enriched uranium fuel
The PWR uses enriched uranium fuel with a slightly higher enrichment level than in a BWR. This is responsible for a higher power density within the reactor core. As with the BWR, the fuel is introduced into the core in the form of uranium-oxide pellets. A typical PWR will contain 100 tonnes of uranium.
What does a BWR do?
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 PWR work?
A pressurized water reactor (PWR) is a type of light-water nuclear reactor. The heated, high pressure water then flows to a steam generator, where it transfers its thermal energy to lower pressure water of a secondary system where steam is generated. The steam then drives turbines, which spin an electric generator.
What is PWR technology?
The pressurized water reactor (PWR) is a type of nuclear reactor used to the generate electricity and propel nuclear submarines and naval vessels. They make use of light water (ordinary water, as opposed to heavy water) as their coolant and neutron moderator.
What PWR means?
pressurized water reactor
abbreviation for pressurized water reactor: a device for producing nuclear power that uses water at high pressure to control the production of heat.
How does a BWR work?
BWRs heat water and produce steam directly inside the reactor vessel. Water is pumped up through the reactor core and heated by fission. Pipes then feed the steam directly to a turbine to produce electricity. The unused steam is then condensed back to water and reused in the heating process.
Why thermal efficiency of BWR is much higher than PWR?
A boiler, super heater, and reheat are used with the BWR similar to a coal-fired facility, but operating at lower temperature and pressure. In principle, the PWR reactor can attain higher efficiencies than the BWR, but the extra water circulation loop limits the upper end of the efficiency at about 33\%.
What is BWR in nuclear power plant?
BWR – Boilin Water Reactors. BWR , It is the second most common type of electricity-generating nuclear reactor after the pressurized water reactor (PWR), 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 steam and then drives a steam turbine.
What is the difference between a BWR and a PWR?
BWR is boiling water reactor in which the reactor core heat the water and converted in to steam and then it is send to the turbine. PWR is a pressurised water reactor in which reactor core heat the water but it is not boil,again this boil water extract heat from the low pressure system then converted into steam and enters the turbine.
What is a PWR power plant?
Pressurized Water Reactor (PWR) power plants consist of two loops— (i) primary loop or coolant loop that takes away heat from reactor, and (ii) secondary loop or working fluid loop that drives the turbine. A heat exchanger (HE) is employed to transfer heat from primary loop to the secondary loop.
What does PWR stand for?
So the basic difference in BWR and PWR lies in the fact that while steam is produced in a pressure vessel in BWR, hot water passes into a steam generator in the case of a PWR. In brief: PWR vs BWR. • BWR stands for Boiling Water reactor while PWR refers to Pressurized Water Reactor.