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What Is Nuclear Energy?

1289 Words6 Pages

Energy crisis, greenhouse effect, fossil fuel emissions, lack of natural resources, rising oil prices…just a few of the phrases you may have heard thrown around within the last few years. And, inevitably, you will have talked about, heard about or read about the need for the way we live with regard to our consumption of fossil fuels and the sources we use to fulfil our energy needs on earth to change, and to change drastically.

The majority of the world’s current energy supply is obtained from coal, gas and oil. All of these resources are non-renewable, severely depleted and the rate of usage increasing day in day out. It’s estimated that gas reserves will run out somewhere in the next 50 years, and for oil we’re given a deadline between …show more content…

Nuclear technology uses a method called fission to create energy. It was first developed in the 1940s during the Second World War and research initially focused on producing bombs by splitting the atoms of either uranium or plutonium. Fission is a method of splitting an atom into two smaller atoms, which don't need as much energy to hold them together as the larger atom. The extra energy is released as heat and radiation. Fission of the uranium creates heat which is used to boil water to steam inside a reactor vessel. The steam then turns huge turbines in magnetic fields that drive generators that make electricity

What are the …show more content…

Basically the uranium releases enough heat to boil the water to 300ºC. We all know that water turns to vapour at 100ºC so how do we keep it in liquid form so it can turn the turbines and generate electricity? Answer: Keep the whole chamber at an extremely high pressure so the water is in essence ‘squeezed’ into staying as a liquid. This chamber needs a coolant around it to stop the plant from overheating. Now imagine what happens when there is a disaster, or a power cut and the this cooling system stops working….300ºC, high pressure chamber, radioactive source…Fukushima.

For most people, that’s why nuclear energy is not seen as a viable energy source, and it was the same with me. It’s not safe, and I don’t want it near me or my country. But then I stumbled across a TED talk https://www.youtube.com/watch?v=N2vzotsvvkw by researcher and scientist Kirk Sorensen. He describes advances into a new fuel Thorium which could eliminate all these

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The general attitude by the public towards nuclear reactors is that of fear or disapproval simply due to its name or the rumors. Nuclear reactors are merely devices that sustain chain reactions, in which only one of the emitted neutrons hits another nucleus to create fission. Though nuclear reactors cannot become a weapon or a bomb, some of the dangers relate to our lives to the extent that we may need to seek alternatives, as demonstrated by the reactors in Three Mile Island and Chernobyl. Nuclear reactors operate on chain reaction, which does not grow due to neutron multiplications of 1. They depend on slow neutrons—in explosion, they are only as powerful as TNT.

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1790 Words | 8 Pages

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