Nuclear Power Grace Liz Dione Blair

The Principle of Nuclear Power

What is Nuclear Reaction Principle: E= mc² Principle: E= mc² Nuclear fission Nuclear fission Nuclear fusion Nuclear fusion Nuclear decay (radioactive decay) Nuclear decay (radioactive decay)

Nuclear Decay The release of radiation by radioactive isotopes (radioisotopes) for short The release of radiation by radioactive isotopes (radioisotopes) for short Unstable nuclei Unstable nuclei Spontaneously & slowly Spontaneously & slowly Three types Three types -αdecay -αdecay -βdecay -βdecay -γdecay -γdecay

Nuclear Fusion Two or more nuclei combine to form a larger nucleus Two or more nuclei combine to form a larger nucleus Release of large quantities of energyRelease of large quantities of energy The nuclear reaction in the SunThe nuclear reaction in the Sun

Nuclear Fission An atomic nucleus is split into two or more large fragments An atomic nucleus is split into two or more large fragments Produces free neutrons and photons (in the form of gamma rays) Produces free neutrons and photons (in the form of gamma rays) Releases a very large amount of energy Releases a very large amount of energy

Nuclear Power Plant

Pros and Cons of Nuclear Power

Pros and Cons of Nuclear Energy 2 main ways to use the nuclear energy 2 main ways to use the nuclear energy Nuclear power Nuclear power Nuclear power plants provide about 6% of the world's energy and 13–14% of the world's electricity, with the U.S., France, and Japan together accounting for about 50% of nuclear generated electricity. Nuclear power plants provide about 6% of the world's energy and 13–14% of the world's electricity, with the U.S., France, and Japan together accounting for about 50% of nuclear generated electricity. Nuke Nuke United States United States the Soviet Union the Soviet Union The United Kingdom The United Kingdom France France the People's Republic of China the People's Republic of China

Nuclear Power Prows Prows 1.Security Only 3 major incident happened in about 50 years history of Nuclear power plants ( Three Mile Island accident Chernobyl disaster Fukushima Daiichi nuclear disaster ) Only 3 major incident happened in about 50 years history of Nuclear power plants ( Three Mile Island accident Chernobyl disaster Fukushima Daiichi nuclear disaster ) 2. Environment friendly  clean energy won’t discharge a great amount of pollutant to the atmosphere won’t discharge a great amount of pollutant to the atmosphere won’t produce carbon dioxide that can cause greenhouse effect won’t produce carbon dioxide that can cause greenhouse effect  Efficient 50 tons of nuclear fuel = tons of coal 50 tons of nuclear fuel = tons of coal

Nuclear Power Cons Cons 1.Fatalness 2. limitations site selection is very strict site selection is very strict 3. investment need large investment need large investment

Nuke Pros Pros Large power Large power radioactive pollution has serious destructive effect to the environment and human health radioactive pollution has serious destructive effect to the environment and human health Cons Cons balance power’s Military might, decrease the probability of world war. balance power’s Military might, decrease the probability of world war.

Difference Between Nuclear Power & Coal Power

Nuclear Power Nuclear Power Use uranium （ 50 years ） Use uranium （ 50 years ） Price stability Price stability Nuclear power plants typically have high capital costs for building the plant, but low fuel costs. Nuclear power plants typically have high capital costs for building the plant, but low fuel costs. Dangerous solid waste Dangerous solid waste Against talking from local Against talking from local Waste heat Waste heat

0.054 £/KWH 0.032£/KWH 0.023£/KWH £/KWH

Coal power Use coal Use coal Coal-fired power is the oldest, is also the most important one. Coal-fired power is the oldest, is also the most important one. Utilization just 60%-70% Utilization just 60%-70% Produce acid gas, smoke and noise Produce acid gas, smoke and noise

Nuclear power VS society

What Does It Bring to Us? As of 2005, nuclear power provided 6.3% of the world's energy and 15% of the world's electricity, with the U.S., France, and Japan together accounting for 56.5% of nuclear generated electricity. As of 2005, nuclear power provided 6.3% of the world's energy and 15% of the world's electricity, with the U.S., France, and Japan together accounting for 56.5% of nuclear generated electricity. The United States produces the most nuclear energy, with nuclear power providing 19%of the electricity it consumes, while France produces the highest percentage of its electrical energy from nuclear reactors—80% as of The United States produces the most nuclear energy, with nuclear power providing 19%of the electricity it consumes, while France produces the highest percentage of its electrical energy from nuclear reactors—80% as of 2006.

The Focus of the Public The Focus of the Public The safety of nuclear power plant. The safety of nuclear power plant. The safety of nuclear power plant. The safety of nuclear power plant. The political problems about nuclear power. The political problems about nuclear power. Nuclear weapon Nuclear weapon The economic value The economic value The economic value The economic value Human health Human health Human health Human health The environmental problems The environmental problems The environmental problems The environmental problems If it can replace the energy of burning fuel and slow down the global warming? If it can replace the energy of burning fuel and slow down the global warming? If it can replace the energy of burning fuel and slow down the global warming? If it can replace the energy of burning fuel and slow down the global warming?

Some serious nuclear and radiation accidents have occurred. Nuclear power plant accidents include the Chernobyl disaster (1986), Fukushima Daiichi nuclear disaster (2011), and the Three Mile Island accident (1979). Some serious nuclear and radiation accidents have occurred. Nuclear power plant accidents include the Chernobyl disaster (1986), Fukushima Daiichi nuclear disaster (2011), and the Three Mile Island accident (1979). Fukushima Daiichi nuclear disaster let people began to question the safety of nuclear power and worry about the nuclear radiation. Fukushima Daiichi nuclear disaster let people began to question the safety of nuclear power and worry about the nuclear radiation. The risk of the nuclear disaster occur is smaller than other electrical plants such as fuel burning and water power plants. The risk of the nuclear disaster occur is smaller than other electrical plants such as fuel burning and water power plants. Rs/?fr=rec1 Rs/?fr=rec1

If its investment is larger than it contributes to the environment? If its investment is larger than it contributes to the environment? Government support Government support

The radiation of nuclear has little effect on human health compare with the radiation we regularly absorb from nature. The radiation of nuclear has little effect on human health compare with the radiation we regularly absorb from nature. American research about people who live closely to nuclear power plant. American research about people who live closely to nuclear power plant. The nuclear radiation surrounding us is not out of standard that can affect our health. The nuclear radiation surrounding us is not out of standard that can affect our health.

Life cycle analysis (LCA) of carbon dioxide emissions show nuclear power as comparable to renewable energy sources. Emissions from burning fossil fuels are many times higher. Life cycle analysis (LCA) of carbon dioxide emissions show nuclear power as comparable to renewable energy sources. Emissions from burning fossil fuels are many times higher. Nuclear fission release some gas such as Iodine-131 and xenon-133 but they are stored and after undergoing their half-life, they are released and at that time, they are not dangerous any more. Nuclear fission release some gas such as Iodine-131 and xenon-133 but they are stored and after undergoing their half-life, they are released and at that time, they are not dangerous any more. It will not release sulfur dioxide ， nitrogen oxides, mercury and carbon dioxide. It will not release sulfur dioxide ， nitrogen oxides, mercury and carbon dioxide.

Dependence of Nuclear Power Some countries rely on it too much, so if it has disaster, the electricity cannot be provided for citizens. Some countries rely on it too much, so if it has disaster, the electricity cannot be provided for citizens. But some countries have a little resource to support them to develop other new energy. But some countries have a little resource to support them to develop other new energy. With some nuclear disaster occurred ， people suggest not to be too dependent on it. With some nuclear disaster occurred ， people suggest not to be too dependent on it. Nuclear power is a important potential energy, but we cannot abuse it. Nuclear power is a important potential energy, but we cannot abuse it.

Thank you.