Three Mile Island is a nuclear generation facility located on three miles in the Susquehanna River, South of Harrisburg, Pennsylvania in the Londonderry Township in the United State of America. The construction of this nuclear generating facility unit started on the 1968 and opened on September 2, 1974. The facility has two separate units, three mile Island One (TMI1) and the Three mile Island two (TMI2) and these together has an annual generating capacities of 6645 tones.
The TMI incident was a partial nuclear meltdown that occurred on March 28, 1979, in one of the units’ nuclear reactors. This incident was one of the worst incidents that happened in the United State, and in the history of commercial nuclear power plant. It was rated a five on the seven-point scale in the world. The accident on unit two happened at four the morning of 28 March 1979 when the reactor was operating at 97 percent power. It involved a relatively minor malfunction in the secondary cooling circuit which caused the temperature in the primary coolant to rise, causing the reactor to automatically shut down in about a second. The relief valve failed to close and the instrumentation did not reveal the fact causing the primary coolant to drain away, also the residual decay heat in the reactor core was not removed resulting in damage of the core.
The chain of events during the Three Mile Island Accident
The pilot-operated relief valve (PORV) on the reactor cooling system opened as it was supposed to within seconds of the shutdown. Ten seconds later it should have closed; nevertheless, it remained open, leaking vital reactor coolant water to the reactor coolant drain tank. Responding to the loss of cooling water, high-pressure injecti...
... middle of paper ...
...ctor in the history of nuclear power worldwide( 616 days and 23 hours) operation (“nuclear association,” n.d., para. 1). The TMI-2 accident led to the establishment of the Atlanta-based Institute of Nuclear Power Operations (INPO) and its National Academy for Nuclear Training. These two industry organizations have been effective in promoting excellence in the operation of nuclear plants and accrediting their training programs.
In conclusion, the root causes of the accident were found to be operator’s inability to diagnose or respond properly to the unplanned automatic shutdown of the reactor, deficient control room instrumentation and inadequate emergency response training. The lesson learned from this accident has helped in the improvement of operator training toward protecting a plants cooling capacity, regardless of what might be triggering the problem.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- Generation of Idiots It has been documented that Albert Einstein was once quoted as saying “I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.” It is my assertion that technology does not make for a less intelligent people. Rather the use of technology allows people to obtain knowledge faster, be more efficient and better able to multi-task. In fact, technology is simply a tool that allows people to perform a variety of tasks and accomplish goals ranging from paying bills to designing and constructing an earthquake resistant buildings.... [tags: Technology, 21st century, Intelligence]
1192 words (3.4 pages)
- The Baby Boomers have grown older and the new generation, Generation X, Generation Y, also known as Millennials, are taking their place. Why has the world taken a huge interest in the Millennial generation. Millennials are people born between the years 1980 and 2000. They grew up being “coddled and helicoptered,” entertained by 24-hour TV. Sam Tanenhaus of The New York Times, writes that Millennials were “fussed over, dissected by psychologists, demographers, [and] trend-spotters.” Millennials were brought up using digital technology and mass media.... [tags: Generation Y, Generation X, Demographics]
1152 words (3.3 pages)
- The Generation Divide The “Generation Divide” (Biro, 2013) is a challenging problem for the leadership in today’s culture. The gaps between these generations are a concern organizations are confronted with. Today’s workforce includes four generations spanning more than 60 years in age (Cogin, 2012). Strategies aimed at attracting, retaining, and engaging employees of all ages are strategic concerns that employers are focusing on (Cogin, 2012). This paper will address the strengths of the four generations of American workers that exist in today’s workplace, similarities and differences, and how to resolve collaboration efforts between them (Mayden, 2014).... [tags: Generation Y, Generation X, Cultural generations]
1709 words (4.9 pages)
- The film The Green Mile was originally written by Stephen King and later directed by Frank Darabont. It is based on the guards and inmates of a penitentiary’s Death Row during the great depression. There is a certain monotony that comes with working on Death Row and Paul Edgecomb, played by Tom Hanks, has become numb to the fact that he is paid to take lives; that is until John Coffey gets sentenced to death and is sent to Paul’s “green mile”. John Coffey is a very large black man that was accused of rape and murder of two little girls, and in the 1930’s having charges like that brought upon you was grounds for the death penalty, especially for a black man in the south.... [tags: Green Mile, Frank Darabont, directors, ]
723 words (2.1 pages)
- Rationale: This design brief is intended to take into account the results of Heath’s VAST heuristic (relating to activities) (1989, in Elliott-Burns, 2003) and a selection of Lackney’s Design Principles (n.d.). Hennah’s (2007) concepts of traffic flow and layout will be incorporated. The design will also consider the requirements of integrating a guided inquiry pedagogy. The users of the space will also be given the opportunity to take part in the process. Heath’s VAST heuristic offers a “rich alternative” (p7, 1989, as cited in Elliott-Burns, 2005) to a checklist approach to designing and can be used to evaluate a learning space and lead to the design of a new one.... [tags: Design Brief]
2158 words (6.2 pages)
- Generation Me or often called millennials are controversially consisting the generation born from 1980 until 2000. Most of the older generations call these young people slothful, shallow, egotistical and fame-obsessed. However, some people have different perspectives about them and call these millennials creative, optimistic, open minded and efficient. This contentiousness has caused numerous research by professors and others regarding ‘Generation Me’. Nevertheless, every generation has its strengths and weaknesses.... [tags: Generation Y, Strauss and Howe]
812 words (2.3 pages)
- I strongly believe that people of my generation are smarter and more intelligent than our ancestors, while my grandparents disagree with this idea. I see that the present-day discovery of scientific facts and modern technology help shaping our idea of the world and lead us to the better understanding of the world, by giving us skill of swiftness, convenient access to information and fact of nature, and correcting the false myths. Also, brand-new style of teaching allows kids these days to be more creative and confident than those in the old days, as students are allowed to use ask their teacher when in doubt, and join an open discussion in class.... [tags: My Generation]
1077 words (3.1 pages)
- A Geographical Classification: Seven Mile Dam- The Seven Mile Hydroelectric Facility The Seven mile dam is a modern hydroelectric power generation facility located on the Pend d’Oreille river about 15 kilometres SE of Trail, BC. The power plant was built to maximize the energy production of the Pend d’Oreille river system. A new power station was needed to meet the electricity demand of the local population and the energy dependent smelting operations of Teck- Cominco The Seven Mile facility is located between two other major hydroelectric facilities, the Boundary dam and the Waneta power station.... [tags: Soil, Water, Hydroelectricity, Arithmetic mean]
2113 words (6 pages)
- ... Department of Justice (2016), which stated, “The HHI reflects both the distribution of the market shares of the top four firms and the composition of the market outside the top four firms.” For example, there are unconcentrated results, which means the market is unlikely to have favorable competitive effects. Then there are moderately concentrated results that can either have unfavorable competitive effects or raise significant competitive concerns depending on what the HHI outcome was. Lastly, there are highly concentrated results that will enhance the market power, facilitating even more competition for the other companies.... [tags: Economics, Capitalism, Market economy]
972 words (2.8 pages)
- Have you ever wondered if our generation is the dumbest. Well, there’s some evidence to prove so. Generation ‘Y’ is considered to be the dumbest generation of all. This is based on numerous experiments, polls, surveys, etc. While everything else in this world is rising, intellect of each generation is falling. With the ignorance of facts, by choice, and lack of some education, Generation ‘Y’ is considered to be the dumbest generation. “Ignorance of facts” simply means that the education is there but this generation just chooses not to use it.... [tags: Millennial Generation]
887 words (2.5 pages)
- Dissociative Identity Disorder ( Disorder )
- Being The Youngest Of A Family Is The Best, But I Disagree
- Smartphone Is An Essential Part Of People 's Lives
- Interview Preparation Is The Act Of Preparing For An Interview
- Mass Media And The United States Presidential Election
- School Psychology Organization Is The Group