Because, if they aren't, the excess heat will damage the reactor.
Water is commonly used to cool the reactor in nuclear power stations. This water absorbs the heat generated by the nuclear reactions and carries it away, preventing the reactor from overheating. The cooled water is then circulated back to the reactor to continue the cooling process.
they are in a nuclear melt down, things are still really bad on that area
to shut down nuclear power stations
Fossil-fuel power stations, hydroelectric power stations and nuclear power stations.
¥There was a leak of dangerous gas from Hinkley point B nuclear power station in 2004.¥In 1986 the Chernobyl nuclear power station in the Ukraine suffered a melt down. This led to 56 deaths.
You are misinformed. All the AGR stations are operational, the magnox ones are mostly shutdown because they have reached the end of life as expected.
Yes, nuclear power plant can be shut down.
It depends on how much it needs to be cooled down, or transferred. The more heat there is the more coolant (water) is needed.
Gas power stations can quickly ramp up or down to match fluctuations in electricity demand throughout the day due to their flexibility, making them ideal for meeting peak demand periods. On the other hand, nuclear power stations provide a continuous and stable supply of electricity, making them more suitable for providing baseline power throughout the day and night. By combining these two types of power stations, the electricity demand can be effectively met over a 24-hour period.
Nuclear fuels, such as uranium, are used in nuclear power stations to generate electricity through a process called nuclear fission. In this process, the fuel rods are placed in a reactor core where the uranium atoms are split, releasing a large amount of heat. This heat is used to produce steam, which drives turbines connected to generators, resulting in the production of electricity.
Power turbines are driven by steam. Steam can be raised by thermal, nuclear or geothermal processes. Wind and water can also drive a generator. The auxiliaries for a power station (which I think is what this question is asking) are typically powered by step down transformers within the power station. In nuclear power stations there are often standby-critical supplies which are driven by gas turbines or diesel generators.
More power on peak times If one goes down, they can rely on the other power stations