Why do nuclear reactors have domes?

Why do nuclear reactors have domes?

The buildings are designed to withstand the very large pressures resulting from water evaporating due to core heat. In the case of fukushima, some “containment” [1] buildings were destroyed when the zirconium alloy fuel rod cladding combined with the oxigen in the cooling water and formed explosive hydrogen gas.

Which of these is most suitable material to be used as nuclear reactor?

A number of different materials can be used to fuel a reactor, but most commonly uranium is used. Uranium is abundant, and can be found in many places around the world, including in the oceans. Other fuels, such as plutonium and thorium, can also be used.

What type of pressure is inside the dome of the reactor?

A containment building, in its most common usage, is a reinforced steel, concrete or lead structure enclosing a nuclear reactor. It is designed, in any emergency, to contain the escape of radioactive steam or gas to a maximum pressure in the range of 275 to 550 kPa (40 to 80 psi).

What is the emergency shut off system in a nuclear reactor called?

A scram or SCRAM is an emergency shutdown of a nuclear reactor effected by immediately terminating the fission reaction. It is also the name that is given to the manually operated kill switch that initiates the shutdown.

Which of the following material is not used in nuclear application?

Which of the following material is not used as moderator? Explanation: At present the common moderator materials used are graphite, ordinary water and heavy water. Oxygen is not suitable to use due to its low density and the consequent small number of collision.

Which material is used in nuclear applications?

Special nuclear materials have plutonium, uranium-233 or uranium with U233 or U235 that has a content found more than in nature. Source material is thorium or uranium that has a U235 content equal to or less than what is in nature.

What is the pressure vessel of a nuclear reactor?

Reactor Pressure Vessels (RPVs) are large cylindrical steel vessels containing a core, cooling water and generated steam, that requires high reliability to withstand high temperatures and high pressures, and neutron irradiation, which makes the RPV the most critical pressure boundary in the nuclear power plant.