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 first 540 megawatt (MWe) pressurized heavy water reactor (PHWR) unit at Tarapur has commenced commercial operations about seven months ahead of schedule.

So traditional reactors like a pressurized water reactor or boiling water reactor, they're very, very hot water at very high pressures, and this means, essentially, in the event of an accident, if you had any kind of breach of this stainless steel pressure vessel, the coolant would leave the core.

And this reactor doesn't use water.

Water from many so called improved sources is contaminated because of poorly maintained or intermittently pressurized networks or untreated and contaminated source water.

(a) Portable tanks The tank shall be filled with water or any other non pressurized substance to approximately 97 of the tank volumetric capacity. The tank shall not be pressurized during the test.

(b) MEGCs Each element shall be filled with an equal quantity of water or any other non pressurized substance.

Thermal neutron reactors are the most common type of nuclear reactor, and light water reactors are the most common type of thermal neutron reactor.

The MEGC shall not be pressurized during the test.

Reactor safety

Reactor operation

The new reactor is designed to use low enriched uranium fuel and an open pool light water system.

Toxic to many animals, heavy water is used in the nuclear reactor industry to moderate (slow down) neutrons.

Reactor operation waste disposal

Reactor safe. Stand by.

The system carried water from Rosoir Spring 12.7 km away through a covered aqueduct (watercourse) to reservoirs near the city, which then fed into a network of 28,000 meters of pressurized pipes delivering water to much of the city.

A Bomb in Every Reactor

The nuclear reactor core is the portion of a nuclear reactor where the nuclear reactions take place.

Iran said that the IR 40 heavy water moderated research reactor at Arak was expected begin to operate in the first quarter of 2014.

Iran said that the IR 40 heavy water moderated research reactor at Arak was expected begin to operate in the first quarter of 2014.

This is a small modular reactor.

So it's a molten salt reactor.

without my reactor, I feel worthless.

Pressurized helium from a 35 liter tank is used to force fuel into the engine.

Iran has also offered to renounce plutonium extraction technology, thus ensuring that its heavy water reactor at Arak cannot be used to make bombs either.

The investigation also showed that Britain shipped 20 tons of heavy water directly to Israel in 1959 and 1960 to start up the Dimona reactor.

The design of the advanced heavy water reactor  an innovative Indian design aimed at moving further on the thorium utilization route is under regulatory review.

Poland currently operates one nuclear research reactor.

(50) Nuclear energy research reactor safety research

Thorium reactor that Nathan Myhrvold's involved in.

This region right here is the reactor.

And in nature there are lots of examples of very efficient structures based on pressurized membranes.

It had the first pressurized fuselage in the Soviet Union and first flew on 27 November 1946.

If the mist or aerosol from a pressurized container is fine, a pool may not be formed.

For example, when the reactor blew up, the fire was immediately put out with water, which only worsened the situation as nuclear particles began spreading through the atmosphere.

A shutdown or decrease of power of a reactor can result in buildup of 135Xe and getting the reactor into the iodine pit.

It builds up in the reactor in the rate proportional to the rate of fission, which is proportional to the reactor thermal power.

The Boeing Model 307 Stratoliner was the first commercial transport aircraft to enter service with a pressurized cabin.

In this kind of reactor, you can't do that.

The countdown for the... Reactor shutdown, temperature 227, falling.

The center produced the fissile material for North Korea's nuclear weapon tests in 2006 and 2009, and since 2009 is developing indigenous light water reactor nuclear power station technology.

On 26 April 1986, a reactor in the Chernobyl Nuclear Power Plant exploded, resulting in the Chernobyl disaster, the worst nuclear reactor accident in history.

The Australian HIFAR nuclear reactor at Lucas Heights, Sydney, operated from 1958 to 2006 and has now been replaced by the OPAL reactor in 2006.

In exchange, two light water nuclear reactors would be built to generate electric energy, and 500,000 metric tons of oil would be supplied annually until the first reactor began operating.

I'd be dead in a few minutes without my reactor.