Nuclear Energy Essay Introduction, A Loyal Friend Essay, Cen

supreme effectiveness. Nuclear energy produces more energy per unit weight than

In any nuclear reactor some sort of cooling is necessary. Generally nuclear reactors use water as a coolant. However some reactors which cannot use water use sodium or sodium salts.

At this point, a review of the types of radiation is in order. Alpha radiation is emitted by uranium and plutonium isotopes. This is the natural decay process for these isotopes and is low energy. It consists of a helium nucleus; it has large mass and low velocity. This helium nucleus very quickly collides with any nucleus around. Six inches of air or a very thin layer of paper will absorb alpha radiation. Beta radiation is an electron with significantly higher energy than alpha. It takes several inches of solid, non-metallic material, or a thin layer of metal, to absorb this radiation. Gamma radiation is very high energy and has no association with any particular particle. It is quite penetrating and is absorbed by very dense material such as lead or gold, or about 15 feet of stone. Under the act of fission, in which a nucleus splits apart into two lighter nuclei, a few neutrons are also released. These neutrons possess high velocity and very high energy. They will pass through metal or stone very well. The materials, which interact with them best, are substances containing a lot of hydrogen, such as water or oil. The protection for workers in a plutonium extraction plant, who are working with fissioning material, consists of alternating layers of leaded glass and clear oil. The leaded glass absorbs gamma radiation and the oil slows down and reflects neutrons.

Conclusion
Today, nuclear energy remains controversial. There are proponents and opponents of nuclear energy, but nuclear energy along with other green energies has a major role to play in years to come. The actions to mitigate the risk associated with nuclear energy need to given due importance to harness its full potential.

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...Discuss the view that nuclear power can be managed so that it is an environmentally sustainable source of energy For nuclear power to be considered sustainable source of energy it musn’t deplete resources or causes long term environmental damage for future generations. Because it is a non-renewable energy source it cannot be classed as a sustainable source as it will run out in 200 years at current consumption. However, it can be thought of as an environmentally sustainable source of energy if managed the correct way. Unlike other non-renewable energy sources such as coal, nuclear power does not release any CO2 emissions, which is a strong positive of its use. This will also contribute to the government’s aims to reduce greenhouse gas emissions by 20% by 2020. However, the production of nuclear power isn’t all green as building the power station produces a lot of CO2. Another reason why nuclear power can be environmentally sustainable is because it does not release any ash or sulphur dioxide which would damage ecosystems and food chains in the surrounding area. For example, France produces 78% of their electricity from nuclear power and they have the cleanest air in Europe; proving that polluting the environment is minimal. On the other hand, nuclear power produces radioactive waste that is extremely damaging to the environment and can scar the landscape for hundreds of years. Consequences such as human, animal and plant deaths and illnesses, destruction of...

essay on energy biology form chapter essay essay about nucle

...Introduction Albert Einstein once said: “The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.” What does everybody know about nuclear energy? When most of you think of the word nuclear you might think of bombs. We talk about clean energy and most of you think of water or wind power, but there are some big drawbacks to those and through this I would like to educate you about another source. I. What is nuclear power? Nuclear power is when you harness the power of radioactive metals decaying (that is where they constantly keep losing electrons). The power is then used to heat water into steam and then using the pressure built by the steam to turn a turbine to create energy. A. Advantages The benefit to nuclear power is that it is a sustainable energy source (meets the needs of the present without compromising the ability of future generations to meet their needs) and it reduces carbon emissions. It also decreases the dependence on foreign oil. B. Disadvantages Disadvantages are that there have been accidents in the past such as Chernobyl or Three Mile Island that scare people. The biggest disadvantage though is storing nuclear waste and how it is handled. The waste is harmful and can accidentally or purposely be used to harm people and the environment. II. Comparing common sources of clean energy There...

College Essays - Nuclear energy research paper

There is no denying the fact that nuclear energy may be the single most powerful energy source available today and which grossly outperforms all the other conventional fuels. The tremendous energy held within a radioactive nucleus and captured by atomic nuclear fission, has phenomenal potential that carbon-based fuels can never hope to match by their process of oxidation. A single nuclear plant can produce adequate energy to provide a small city with electricity, something an oil well cannot.

...MAV introduction A Nuclear power plant is a thermal power station in which the heat source is a nuclear reactor, the heat is used to generate steam which drives a steam turbine connected to a generator, and this produces electricity. Nuclear power plants are many different sizes and many sites have multiple units. Most of the new units are between 1000 and 1700 Mw electric. A good thumb-rule is 1000 Mw = 1 million homes Nuclear power stations use a fuel called uranium, a relatively common material of which Energy is released from when an atom is split by a neutron. The uranium atom splits into two which releases energy in the form of radiation and heat. We call this nuclear reaction the ‘fission process’. The uranium is first formed into pellets and then into long rods in a nuclear power station which are then kept cool by submerging them in water. When removed from the water a nuclear reaction takes place causing heat. In a nuclear power station the uranium is first formed into pellets and then into long rods. The amount of heat required is controlled by raising and lowering the rods. If more heat is required the rods are raised further out of the water and if less is needed they lower further into it. Advantages: The amount of electricity produced in a nuclear power station is equivalent to that produced by a fossil fuelled power station. Nuclear power stations do not burn fossil fuels to produce electricity and they do not produce damaging...

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Nuclear Power - Free Essays, Term Papers, Research …

Given the history of Nuclear Plant construction in the U.S.A., the financial industry sees the construction of the new generation of reactors as a risky investment and demands a premium on capital lent for the purpose. The recently passed by the US Congress assumes this risk and provides production credits of 1.8 cents per KW-Hr for the first 3 years of operation. This subsidy is equivalent to what is paid to Wind Power companies and is designed to encourage new nuclear reactor construction in the USA.