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nuclear energy after world war
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As begins every typical paper written on the progress of commercial nuclear power, a bit of history related to the nuclear power industry is custom. Beginning with the Generation I reactors (early prototype reactors), such as Shippingport, Fermi I and Magnox, which lead us to Generation II reactors (commercial power reactors), such as the more commonly known light water reactors; pressurized water reactors (PWR) and boiling water reactors (BWR). Other General II reactors include the CANada Deuterium Uranium reactor (CANDU), advanced gas-cooled reactor (AGR), and the voda voda energo reactor (VVER). Next are the Generation III reactors, which consist of the advanced boiling water reactors (ABWR), System 80+, AP600 and European pressurized reactor (EPR). Advancing further brings us to the Generation IV reactors, which are divided into two categories: thermal reactors and fast reactors. A few thermal reactors include the very-high-temperature reactor (VHTR), molten-salt reactor (MSR) and supercritical water reactor (SCWR). Some fast reactors are the Gas-cooled fast reactor (GFR), sodium-cooled fast reactor (SFR) and lead-cooled fast reactor (LFR). Scientists and engineers are constantly working to progress the methods of producing power to improve the safety, efficiency and economics aspects. As studies progress, we inch closer and closer to the ideal commercial plant to wean towards reliable carbon-free power sources. However, despite valiant efforts, society still relies on the generation II PWRs and BWRs as our primary source of nuclear power. Mention figure. In 1958, Savelli M. Feinburg purposed the first known proposal for a fast reactor that could sustain a breed-and-burn condition using only natural or depleted uranium as fue... ... middle of paper ... ...new generation of smaller reactors []. Ideally, TerraPower expects to have the TWR prototype constructed in 2022. The TWR-P is expected to be a 600 megawatt-electric demonstration reactor. The TWR-P is expected to accomplish multiple goals, such as, demonstration the first electricity-producing TWR, confirm the traveling wave design, demonstrate key plant equipment, serve as the last step in our fuels and materials qualification program, and provide the technical, licensing and economic basis for future generations fo TWRs. Thorium If tactics stay on track, the TWR appears as a safe, small-scale nuclear reactor that cuts the cost of power, burns existing nuclear waste as fuel and avoid carbon dioxide and other emissions. TerraPower estimates 700,000 metric tons of spent fuel in the United States alone, and 8 metric tons could power 2.5 million homes for a year.
Non-renewable resources such as fossil fuels have been used up by society on a daily basis and have forced the world to find a new, clean energy source. The rising price of oil and the constant emission of carbon dioxide are proof that in the future our lives will be much harder to live. One answer to this problem is nuclear power, which has shown its efficiency during the times of World War II but has not been used commercially due to the challenges of dealing with nuclear waste and proliferation. In today?s modern era, nuclear power has been used in liquid metal fast breeder reactors, reactors that use uranium-238 to produce plutonium-239.
After World War II, nuclear power became the world’s shining energy hope. Technically it is produced when neutrons split the nucleus of uranium atoms releasing heat which is used to boil water and produce the steam that drives a plant’s turbines. Nuclear...
...es, R. and Moir, R. 2010. Liquid Fluoride Thorium Reactors : An old idea in nuclear power gets reexamined. American Scientists.
Wareham Oam, S, 2007 The Nuclear Industry: A History Of Misleading Claims,briefing paper 20, pp. 1-13, viewed 1 Oct 2009.
Our world today is growing every day every year and there will be a time where more and more energy will be needed to sustain human life. The demand for electricity and its value is increasing rapidly and will only continue to do so. The world will need greatly increased energy supply in the next 20 years, especially clean generated electricity [WNA, 2014]. Fourteen percent of the world’s electricity comes from nuclear energy to use. The use and demand for electricity will increase in 2030 by eighty one percent. Therefore, nuclear power plants need to rise to fulfill the demands and needs for the growth of the population. Since the demand for electricity is increasing and with many resources to get electricity from, the use of nuclear energy without constant support will probably decline to around 9 percent or less by 2035. At least two factors will make this quite difficult for nuclear energy to gain a bigger m...
TerraPower works with Cryogenic Consulting Services to properly clean reactor gases. “In Connecticut, we are collaborating with Cryogenic Consulting Services to build a pilot plant to demonstrate the effectiveness of using a cryogenic process to clean radioisotopes from the reactor cover gas. This system will be used to augment the TWR sealing system to ensure products from fission reactions are retained within closed systems” (Weaver). These radioisotopes can be very harmful because of their origin in reactors. These products can be radioactive and/or poisonous. TerraPower is changing fuel tubing and manufacturing processes in hopes of a safer and more reliable method of containing the leftover radiation. “In California, Veridiam is working with TerraPower to develop fuel tubing and duct manufacturing processes and to demonstrate the feasibility of product production. This tubing is also being used for experimental work to evaluate performance at elevated temperatures in a neutron radiation environment. The results of these tests are crucial for the long-term performance of the TWR” (Weaver). Gates’ TerraPower works to improve the tubing and duct so they can withstand higher radiation levels. By improving the workings of these ducts and tubing, radiation doesn’t seep into the environment and cities. The improvements in proper manufacturing methods help control and contain the
Around 1894, scientists discovered that by bombarding a radioactive substance with neutrons, a highly powerful energy could be produced. This is ionizing radiation, which is strong enough to rip the electrons from the nucleus of an atom, hence the name “nuclear energy.” over a century later, nuclear substances are harnessed in order to provide energy. However, nuclear energy is not only discussed amongst scientists, but anyone fearing the safety and future of the environments surrounding the area where a nuclear power plant is implemented.
...ing nuclear waste is a new and unsound technology, but still a solution to the problems of excessive waste. Where in the future, new technologies may allow for the waste to be completely recycled and reused in the reactors to create more energy. With both positives and negatives of nuclear energy, the real question that remains is “if not nuclear, then what else?” (Rutgers’s Felder)
As our population increases, so will our demand for electricity. Air conditioners, computers, televisions, microwaves, and many other appliances have become necessities for Americans. All methods of producing electricity have drawbacks. As the earth becomes warmer, we must look for ways to decrease our use of fossil fuels. There are several ways to produce electricity without releasing air pollution. The most feasible method at this time is nuclear energy. Nuclear energy presents a safe, clean, and inexpensive alternative to other methods of producing electricity. Nuclear waste can either be reprocessed or disposed of safely, provided certain precautions are taken.
Raymond, Murray. Nuclear Energy, Sixth Edition: An Introduction to the Concepts, Systems, and Applications of Nuclear Processes. 6th. Butterworth-Heinemann, 2008. Print.
As fossil fuels diminish, relying on nuclear energy sources would reduce our dependence on such fuels and thus, enhance our energy security. However, there are other security concerns to address, i.e. nuclear terrorism, accidents, and proliferation. Commercial reactors depend primarily on nuclear fission to generate electricity, but these reactors utilize low enrichment uranium (LEU) which has a low concentration of fissile material, 3-5%, which cannot be used to make a bomb (Nuclear Power, April 8). Returning to the use of uranium-238 to manufacture plutonium: this would require the reprocessing of spent fuel and fast neutron reactors to meet long-term sustainability needs. These reactors would consume long-lived radioactive waste and produce more plutonium; however, this would increase the widespread commerce of plutonium and, consequently, raise the proliferation risks to unacceptable levels (Ferguson 206). Reprocessing concentrates high-level radioactive waste into a smaller volume which requires secure disposal, this presents the possibility that terrorists could gain access to radioactive materials to use in “dirty bombs”; further, commercial plants symbolize national and economic power, when combined with the sources of ionizing radiation they house, they are targets for terrorists looking to play upon the fears of radiation and cause serious financial and psychological impacts (176). Some terrorists have expressed interest in attacks on nuclear facilities; however, terrorist motivation would have to be extremely high and possibly be willing to risk sacrificing constituents support–the probability of a nuclear terrorist attack is rather low. If “commercial power” means to generate electricity for homes and business, this could be extended to research reactors which use higher enriched fuel that could be used to make a bomb. North Korea built a
The use of nuclear energy has increased in the United States since 1973. Nuclear energy's share of U.S. electricity generation has grown from 4 percent in 1973 to 19 percent in 1998. This is excellent news for the environment. Nuclear energy and hydropower are the cleanest large-scale means of electricity production. Since nuclear power plants do not burn fuel, they emit no combustion byproducts—like carbon dioxide—into the atmosphere (www.nei.org). Nuclear power can come from the fission of Uranium, plutonium or thorium or the fusion of hydrogen into helium. Today uranium (U-235 and U-238) is most commonly used in the production of nuclear energy. The expa...
There are two main types of nuclear reactors used in the world, Pressurized Water Reactors, known as PWR’s, and Boiling Water Reactors, known as BWR’s. The former is more complicated and thusly more safe and more commonly used, while the latter presents several unnecessary hazards and is quickly being phased out of usage (Duke, n.d.). In both systems, reactions take place inside of a reaction chamber located within a co...
Nuclear power, the use of exothermic nuclear processes to produce an enormous amount of electricity and heat for domestic, medical, military and industrial purposes i.e. “By the end of 2012 2346.3 kilowatt hours (KWh) of electricity was generated by nuclear reactors around the world” (International atomic energy agency Vienna, 2013, p.13). However, with that been said it is evident that the process of generating electricity from a nuclear reactor has numerous health and environmental safety issues.
As one of the greatest alternatives to fossil fuels, an important advantage of nuclear energy is the significantly lower emission rate of CO2 in comparison to plants which use coal and natural gas.2 Nuclear power is not reliant on fossil fuels and therefore producing energy by this method reduces pollution and the contribution to climate change. However, whilst the actual process of generating energy releases few emissions, uranium must be mined and purified and in the past this has not always been an environmentally clean process.2 Ultimately, uranium will one day run out, but nuclear reactors are versatile and may also run on Thorium. Despite being finite, this would allow nuclear power stations to function for a longer period of time.