IEE 381 Article Review The article that I decided to review was an article about how a research laboratory in California was able to create nuclear fusion by using an incredibly concentrated laser. This is important because we need to find alternative fuels to power our society that doesn’t give off excess amount of pollutants such as carbon emissions or nuclear waste. In the article it mentions that this laser was able to create more power than it used therefore it can be used to generate power. The other process I want to mention as pretext is the nuclear fission of U-235 and U-238. The difference between these two operations is that they operate on the respective particles mentioned above and additionally U-235, which is what we use currently, creates nuclear waste while U-238 does not. Another fact about this process is that U-235 makes up .702% of Uranium while U-238 makes up 99.724%. Now the reason why I have mentioned these processes is to give a snapshot of where we are at, U-235 nuclear fission, and where we are going, laser induced fusion or U-238 fission. These two distinct processes that the future holds are vastly different and in the end using the analysis we have learned in class I believe that U-238 nuclear fission is the direction we should be pushing for. Now to start off this analyzation I will go through the RDdmaic of our current way of generating nuclear Fission of U-235. To start off we need to identify where the process lies on the product mix vs. volume graph. It is clear that the processes that are being analyzed lie on the mass production of energy. There is no variability in the process and it must produce a massive amount to be effective. Next we will ask the three necessary questions when coming up ... ... middle of paper ... ... The most common type of reactor involves the fission of U-235 which is an inefficient process with a lot of room for improvement. The future could be either laser induced nuclear fusion or U-238 fission. Although both can fit under the “should be” model from a lean perspective the fission of U-238 is a more feasible option for the future of the energy industry. Works Cited Brumfiel, Geoff. "Scientists Say Their Giant Laser Has Produced Nuclear Fusion." NPR. NPR, 12 Feb. 2014. Web. 15 Feb. 2014. Wald, Matthew L. "Atomic Goal: 800 Years of Power From Waste." Nytimes.com. New York Times, 24 Sept. 2013. Web. 15 Feb. 2014. "Fast Neutron Reactors." World-nuclear.org. World Nuclear Association, n.d. Web. 17 Feb. 2014. Brain, Marshall, and Robert Lamb. "How Nuclear Power Works." HowStuffWorks. HowStuffWorks.com, 09 Oct. 2000. Web. 15 Feb. 2014. IEE 381 Lecture
The development of atomic bomb boosted the level of understanding in terms of physics and chemistry of that particular time period. Physicists started to realize that stable nuclei can be converted to unstable nuclei. Through such process, they discovered that heavy nuclei can undergo nuclear fission. While testing, they added a neutron to an isotope of Uranium 235. This resulted Uranium 235 to become unstable and break down into Barium and Krypton, releasing two to three more neutrons. The breakdown of Uranium 235 is called “fission”. When the released neutrons attach to other isotopes of Uranium 235, this can result in a chain reaction of fission. For every generation of fission, the amount of fission is doubled, and this resulted in an extreme outburst of energy. The amount of energy released by this process is related to Einstein’s famous equation “E=mc^2” (Wolf).
Development of the Hydrogen Bomb In the world, there is little thing called power. Many countries want to have great power, few get it. Powers gave the Soviet Union and the U.S. the ability to dominate in wars. In the 1950’s during the Cold War these two countries had a race to see who could create the most powerful weapon the world has ever seen, the Hydrogen Bomb. Edward Teller, an atomic physicist, and Stanislaw Marcin Ulam, a mathematician, "who together developed the Teller-Ulam design in 1951" for the Hydrogen Bomb (Teller-Ulam Design).
Nuclear energy must be a consideration for the future with the rapidly depleting supply of fossil fuels. This type of energy can be created through nuclear fission and nuclear fusion. Nuclear fission is the splitting of a heavy atom into two or more parts, releasing huge amounts of energy. The release of energy can be controlled and captured for generating electricity. Nuclear fusion involves bombarding hydrogen atoms together to form helium. In the long run, nuclear fusion has greater potential than fission.
asked to calculate the critical mass of uranium-235, the amount needed to sustain a chain reaction.
...nce World War II to the present day, the technology of nuclear power has increased significantly in terms of energy output and safety. The energy efficiency of nuclear power is far superior to its counterpart fossil fuel and renewable energy. Compared to fossil fuels, tiny amounts of fuel used by nuclear reactors is equivalent to a large sum of coal. This is a no brainer. Why mine a ton of coal when a little uranium can be used to gain the same amount of energy? Not only is it efficient, it’s safe to use. Used fuel is packed away in storage safely, so there isn’t any chance of radiation leaking out. In the present day, nuclear power incidents haven’t been occurring lately. Advancements in technology and equipment used have made nuclear energy a very reliable and safe source of energy. With today’s energy needs, nuclear power has the ability to keep up in the race.
Nuclear power is generated by using electricity created during a controlled fission or fusion reaction (“Nuclear Energy.” Global Issues in Context Online Collection). Nuclear fission is a process that releases energy when a nucleus in one atom is separated into two nuclei. Nuclear fusion occurs when the nuclei of two hydrogen atoms are fused together producing a larger nuclei along with energy (“Nuclear Energy.” Opposing Viewpoints Online Collection). In the 1950s, the use of nuclear power became a realistic idea for countries with nuclear capabilities and nuclear power programs (“Nuclear Energy.” Global Issues in Context Online Collection). The international nuclear program grew rapidly and by 1999 there were 436 nuclear power plants in 32 different counties. The United States, Japan, Canada, Russia, India and France remain the largest users of nuclear energy since the 1990s; however, the dependency on nuclear power varies greatly around the world because of differences in the individual nuclear power programs availability of needed resources (“Nuclear Energy.” Opposing Viewpoints Online Collection).
Nuclear weapons are categorized into two types of weapons, which are nuclear fission, and fission induced reactions that trigger a fusion reaction. A nuclear fission bomb is also referred as an Atomic Bomb, a fission-induced nuclear weapon is referred to as a thermonuclear weapons and a hydrogen bomb (Union of Concerned Scientists [UCSUSA], 2009, p. 1). Thermonuclear weapons are able to create larger explosions than fission weapons by using fission and fusion instead of deriving their energy solely from fission (UCSUSA, 2009, p. 2). In the “Physics of Nuclear Weapons” the design of thermonuclear weapons is explained by two basic components, which are the “primary” and the “secondary” (“The Physics of Nuclear Weapons, p. 6). These two basic components are also called the Teller-Ulam design, which is a “two-stage bomb”, the basic design for all thermonuclear weapons (Fusion Weapon Physics 2.0 section, para. 1). This report will examine the beginning and development of thermonuclear weapons. Which involves the first thermonuclear weapon detonation in 1952 (“Race for the Superbomb”, para. 1). Also the development from the first thermonuclear weapon to the present day “Boosted” (UCSUSA, 2009, p. 2) and “Neutron” thermonuclear bombs (Nuclear Weapons section, para. 1...
Physicists from 1939 onward conducted much research to find answers to such questions as how many neutrons were emitted in each fission, which elements would not capture the neutrons but would moderate or reduce their velocity , and whether only the lighter and scarcer isotope of uranium (U-235) fissioned or the common isotope (U-238) could be used. They learned that each fission releases a few neutrons.
“The half-life of a radioisotope is the time required for half the atoms in a given sample to undergo radioactive decay; for any particular radioisotope, the half-life is independent of the initial amount of...
As of now, 80% of global energy is provided by fossil fuels. Wind and solar energy sources are unlikely to completely replace fossil fuels in the coming decades due to infrastructure problems. A drop in global energy provided by oil starting sometime between 2012 and 2014 (Chris) is also expected. As a result of these circumstances more research must be done in other forms of energy generation in order to keep with energy demand as countries industrialize and populations grow. Despite claims that nuclear fusion will not be practically realized, research into nuclear fusion should be increased as it is not harmful to the environment, has nearly limitless fuel, and is inherently safe. Fusion power produces no greenhouse gasses and no long-lived radioactive products, making it a very clean energy source. According to the article “Safety and Environment,” “Fusion power does not produce any greenhouse gasses (GHGs) or other atmospheric pollutants during operation.” It has become an increasing desire for things, such as cars and companies, to become environmentally friendly or “green.” The fact that fusion power would generate no greenhouse gasses inherently is a big plus. Furthermore, according to the same article, “SEAFP concluded that fusion has very good inherent safety qualities, among which... no production of long-lived, highly radiotoxic products.” The radiotoxic products produced by nuclear fission pose a large environmental problem due to storage required. Fusion is much more environmentally friendly than fission because it lacks these products.
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...
is very large. In practical units, the fission of 1 kg (2.2 lb) of uranium-235
The Industrial Revolution sparked a need for large sources of energy. Human and animal labor could not provide the power necessary to power industrial machinery, railroads, and ships. The steam engine and later the internal combustion engine provided the bulk of the energy required by the industrial age. Today most nations are still heavily reliant on energy that comes from combustion. Usually coal, petrolium, and natural gas are used. Some hydroelectric, wind power, and nuclear fission sources are used, but in the US they accounted for less than 20% of the total energy consumption in 1997 (1). Many experts are worried that natural resources such as coal and petrolium are being depleted faster than they are being replenished, which could result in an energy crisis. Nuclear fission produces highly radioactive waste that is expensive to dispose of properly. Nuclear fusion reactors would produce much less radioactive waste and would be more efficient than nuclear fission, but to date there have been no nuclear fusion reactors that have generated usable energy output. Why is fusion power, which could be very beneficial, so hard to come by?
Furthermore, the future of this industry has a definite growth forthcoming. As we approach fusion power as a reality, nuclear engineers will be essential components to the distribution of a clean, safe energy source.
Whilst there are clear arguments for and against nuclear energy, the future is promising; with scientists working on potential breakthroughs such as nuclear fusion, and the design of newer and better and reactors. Nuclear fusion is a reaction which causes the nuclei of atoms to collide and form a new atomic nucleus. It is essentially what heats the sun and stars and would produce no long-lived radioactive waste.22 If scientists could control the process of atomic fusion then it could become a never ending energy source for future use.