Three Mile Island Nuclear Paper
Nuclear power is a useful resource, but it can also be dangerous in certain cases. March 28, 1979 is an example of one of these situations. On that date, the Three Mile Island (TMI) power plant in Pennsylvania experienced the “worst accident in the history of commercial nuclear power in the United States” (Three Mile Island, 2014). Located near Harrisburg, Pennsylvania, the plant, as seen to the left, had originally been built to locally provide electricity and power. For five years, the first pressurized water reactor located there had functioned properly after being “entered into service in 1974” (Three Mile Island Accident, 2001). The second unit, known as the TMI-2, began operating late December 1978,
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Fission is controlled within a nuclear reactor, in contrast to an uncontrolled reaction in an atomic bomb. One method utilized to control the reaction is neutron absorption through control rods. These rods have the ability to capture neutrons, which consequently slows the reaction down when they are placed among the fuel assembly. Of course, a reaction must first begin before it needs to slow down. Fuel rods containing pellets, often made of uranium-235, are grouped into a fuel assembly to act as fuel for the reaction. These fuel rods must contain critical mass, or the minimum amount of fissionable uranium to sustain the reaction. Once the fuel rods have been used, they are no longer able to sustain a chain reaction and contain subcritical mass. The initial chain reaction is able to occur when the uranium pellets are bombarded with neutrons, causing the uranium atoms to split and release energy in the form of heat, and while also release more neutrons to collide with other atoms to create even more heat (How Do Nuclear, n.d.). Due to this being a controlled reaction, energy is released slower, meaning the heat produced is able to be captured. Because the TMI-2 was a pressurized water reactor and not a boiling water reactor, the heat was then taken to the primary coolant water system, and the pressurizer kept the water from boiling (How Do Nuclear, n.d.). As the previous image shows,
Analysis There are several biblical concepts found in the Lion King however, this essay will be focusing on the correlation in the Lion King and the prodigal son. Simba, the main character in the lion king can be compared to the wayward son in the parable of the Prodigal Son in Luke 15:11-32. In the opening scene, we encounter Simba as a baby cub when he is presented to all the animals in Pride Land. Simba literally grows up in front of us, three different actors represent Simba namely, young Simba, teenage Simba and adult Simba.
This research paper discusses the Three Mile Island incident to include what started it, the results in the aftermath, and how it could have been prevented. The Three Mile Island Unit 2 (TMI-2) reactor, near Middletown, Pa., partially melted down on March 28, 1979. This was the most serious accident in U.S. commercial nuclear power plant operating history, although its small radioactive releases had no detectable health effects on plant workers or the public. Its aftermath brought about sweeping changes involving emergency response planning, reactor operator training, human factors engineering, radiation protection, and many other areas of nuclear power plant operations. It also caused the NRC (Nuclear Regulatory Commission) to tighten and
Metropolitan Edison Company: Victor Stello(nuclear engineer for the plant), Jack Herbein (nuclear engineer for the plant; discussed the issue with the press and basically lied and said that everything was controlled and there was no real danger), Ed Hauser (went into the reactor to check the actual amount of radiation inside of the reactor; result was shocking=100rem/hr, coolant water was not clear and was actually yellow and fizzing with 1250rem), Roger Mattson (another nuclear engineer who butted heads with Victor Stello over how to handle the situation in the plant)
As humans we want to have a good life, have a home, maybe a family and feel safe. With the advances in industry such as energy production we can have more luxuries which include heat, lights and running water. However, as technology gets bigger and better there will always be risks that can lead to catastrophic outcomes. Luckily for the United States; we did not have a disastrous outcome with a nuclear power plant such as the 1986’s Chernobyl Nuclear Power plant catastrophe, making, ”the Chernobyl disaster the only level 7 incident on the International Nuclear Event Scales (INES) making it the biggest man-made disaster of all time” (List 25, 2014) . Three Mile Island power plants is located near Middletown Pennsylvania. On March 28, 1979, the plant had a partial meltdown. Even though the Three Mile Island power plant incident did not have any adverse health effects, Three Mile Island had an impact on the nuclear industry development and politically in the United States.
Arjun Makhijani, a prominent researcher for The Institute for Energy and Environmental Research, claims that today’s emission rate of carbon dioxide is about nine gigatons annually and that the Earth only has the capability to absorb 3 gigatons annually—thus a problem arises. Furthermore, Makhijani states that about 2/3rds of the carbon dioxide emissions are caused by the burning of fossil fuels such as coal and petroleum. With those shocking statistics in mind, fossil fuel’s emission of carbon dioxide is thought to be the leading cause of climate change—which is responsible for irreversible and catastrophic changes to the Earth. Yet, scientist had tremendous difficulty finding a safe, effective, and efficient form of energy supply that will met the great consumption rate. Many prominent scientist suggest that nuclear power is the most plausible explanation and solution to the fuel crisis. However, despite nuclear power having a exponentially lower emission rate, it presents its own hazards and threats—such as the Chernobyl and the Three Mile Island incidents. These accidents have many activists and politicians cautious about the prospect of using nuclear power as a complete alternative to fossil fuels—regardless nuclear plants are responsible for 11% of the energy supplied to the world annually (World Nuclear Association.) What many of the activist and politicians seem to overlook is that fossil fuels are an indefinite energy supply and will quite possible run out within
When people hear the term “nuclear energy”, the first thing that jumps to their minds is most often “danger”. Who could blame the world for their intense fears of nuclear power, especially after reading the reports from Dr. Ira Helfand and the American writer, David Biello? Dr. Helfand’s article, “Radiation’s Risk to Public Health”, attacks the nuclear energy with facts and concerns like those of the National Research Council BEIR VI report. Whereas Dr. Helfand supports his claims with scientific evidence, David Biello only had a script from a discussion that followed the Fukushima crisis. David Biello’s article, “How Safe Are U.S. Nuclear Reactors? Lessons from Fukushima”, he uncovers secret concerns and future plans about the incredibly disastrous incident. Although David Biello used credible sources and attempted to appeal to ethos, logos, and pathos, Dr. Ira Helfand contains an authority in his education and knows a great deal more about nuclear power and definitely has the best representation of ethos, logos, and pathos.
Three Mile Island in Harrisburg, Pennsylvania, contained the most serious commercial nuclear accident in U.S. history. The events that followed taught the U.S. a lesson learned about nuclear power and the damage it can cause. The Three Mile accident paved the way for reforms in the way nuclear power plants were operated and regulated. the location of the island, the accident, the meltdown, the aftermath, and the media circus were all critical points in the lessons learned.
Firstly, the atomic incidents of Three Mile Island in Pennsylvania and Chernobyl in Russia are often mentioned as examples for nuclear plants being unsafe. In both cases failures of workers led to a meltdown in the reactors and increased radiation in the surrounding area (Henderson 12-17). And as the recent disaster in Japan shows, a nuclear crisis cannot only be caused by human mishaps, but also by unpredictable and untamable natural hazards. Consequently, nuclear crises cannot be predicted or prevented completely. Nuclear plants are, furthermore, considered uneconomical because in the eighties the construction costs of nuclear plants were underestimated and exceeded the estimation by $100 billion (Henderson 103). Therefore, the nuclear power opponents are arguing that nuclear power is burdening the American economy unnecessarily. According to the nuclear physicist Jeff Eerkens, antinuclear groups are also claiming that nuclear power is not necessary for the future since renewable energy sources, such as solar, wind, hydro, and geothermal power will be providing sufficient energy for the United States, and are at the same time much cheaper than the costly nuclear power plants (Eerkens 20). Over all, opponents consider nuclear power to risky and inefficient to “deserve further support from U.S. taxpayers” (Henderson 104).
Three Mile Island nuclear plant is located in Pennsylvania, United State. The accident began on 28 March, 1979, a core meltdown in TMI-2 reactor. According to accident report, it was attributed by both human factors and mechanical failures: Something wrong happened in TMI-2’s secondary system, and resulted in a series of failures. The pilot-operated relief valve (PORV) automatically opened, but did not closed, which led coolant water to escape. The operator misread the situation and did not take proper actions in the first place due to inadequate training. The accident finally led to the release of about 2.5 million curies of radioactive gases, and 15 curies of radioiodine.
Nephi was one of the sons of Lehi. Lehi received visions from the Lord and began attempting to repent the people of Jerusalem. After his attempted murder from those angered by his preaching, Lehi listened to God’s commands and left Jerusalem. Shortly afterwards, God commands Lehi to send his four sons back to Jerusalem so that they may retrieve ‘The Brass Plates’ held by Jerusalem’s powerful leader Laban. The brothers failed during their first couple attempts to take the ‘Plates’ from Laban, but once Nephi traveled alone and prayed to the Lord, he was successful in defeating Laban with his own sword, which had been commanded by God, and returning the ‘Brass Plates’ to his father who spend times
This accident has been, by far the worst nuclear power plant accident within the borders of the United States.However, the studies conducted by governmental groups such as the Nuclear Regulatory Committee (NRC), the Environmental Protection Agency, the Department of Health, Department of Energy, and the State of Pennsylvania as well as numerous independent organizations have deemed that the accident at Three Mile Island had very little, if an at all, effects on the health of the communities surrounding the plant.[8]
Countless nuclear power plant accidents have been occurring quite frequently since its invention. Some accidents have even been underestimated,
Nuclear power was the world’s fastest growing form of energy in the 1990’s. However, presently it is the second slowest growing worldwide. Considering that nuclear power accounts for eleven percent of the world’s energy supply, one must ask what happened [Nuclear Power]. Why is it that the growth of nuclear power has almost completely stalled? The simple answer is that after meltdowns such as Three Mile Island and Chernobyl, many people are afraid of nuclear power plants, which causes great opposition to the expansion of the industry. Unfortunately, most people are not well informed about nuclear energy; many do not take the time to view its positives and negatives.
Ecological systems theory illustrated how social relationships and the world around individual effected their development. This perspective was develop by Urie Bronfenbrenner who examine the constitutional qualities of children and their interaction in environment and how this interaction impact on a child development. As a result, Bronfenbrenner develop five model of external influence on child development. In contrast, to the five model are Microsystem an immediate environment which a child lives, Mesosystem the connections in different microsystem, Exosystem the indirect environment which may exist between two or more settings. Marcrosystem which is the social and cultural values that influence children and also Chronosystem the changes
Many critics argue that due to the Three Mile Island nuclear incident that occurred March 28, 1979, in Pennsylvania resulted in a reactor meltdown, with no casualties due to a combination of equipment failure and a lack of operators understanding what to do to a faulty reactor. This incident has put the majority public to have safety concerns over not only the operators working in the plants but also the civilians in the surrounding area. Yet since the accident, the United States formed the National Academy for Nuclear Training to improve training the Institute of Nuclear Power Operations which reviews and accredits nuclear utilities’ training programs for all key positions at each plant. In addition, nuclear energy plants have proven the ability to produce clean electricity without greenhouse gas emissions and the reliability due to its increased efficiency and increased power output.