The Tragedy Of Three Mile Island

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

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.

Three Mile Island Nuclear Power Station is on an island that is located about 10 miles from the town of Harrisburg, Pennsylvania.The plant housed two nuclear reactors, Unit 1 and Unit 2.Now there is only one that

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.

The basic causes of the meltdown were the damages to backup generators on reactors 1 through 3 by the sea water. This forced the emergency lights and cooling system to shutdown (which resulted in an overheating of the reactors). What made the situation worse is that Japanese officials were in a state of panic after the disaster. This is because they did not realize that the cooling systems were shut off and that the problem was compounded from the lack of response. ("Fukushima Utility")

This did not mean that the valve had actually performed that action, but rather that the message was received by the valve (History Channel…). The light shut off, which indicated to the operators that the valve had been opened and reclosed, however the valve did not reclose (Wikipedia). The PORV remained open and was releasing a combination of coolant and radioactive material. As coolant water was released, no instrument indicated this to the operators; the operators had only been trained to estimate the amount of water in the reactor by doing calculations based upon pressure readings. These pressure readings were now skewed and thus the calculations were wrong and based upon these wrong calculations, the operators stopped the flow of cooling water to the reactor. The lack of water caused overheating within the reactor and according to the US Nuclear Regulatory Commission’s findings, about half of the reactor’s core melted. Operators had no way of knowing this and also were not trained to handle such an event. Unlike the event at Chernobyl, the reactor stayed intact and massive amounts of radiation were not leaked into the surrounding area. This containment, led nuclear engineer, Jack Herbein to announce publically that the citizens of Harrisburg were in no danger. Herbein’s comments on the plant were near fraudulent because no one was certain as to the actual danger that they were in

These examples show both the author’s and the protagonist’s challenge to the order of things and the complete belief the character has. The best example of this is on line eight when the king says that he ‘shall not give you the boat’ the man replies ‘with calm assurance’ ‘you will’.

On March 1979, in Harrisburg, Pennsylvania Three Mile Island there were misread gauges and poor decision that lead to the melting of the core reactor. But after the core melted

Across the Susquehanna in Cumberland County, they implore us to allow the Reactor to begin again. They ask us why they didn’t get a vote – after all, they need power too. Last time I checked, Three Mile Island is not in Cumberland County. If the citizens of Cumberland County wish to move Three Mile Island to their neck of the woods, we will gladly take them up on their offer.

Three Mile Island Unit 2, located near Harrisburg, PA, had an automatic shutdown, even though the plant’s efficiency level rated about 100 percent. On March 28, 1979, one of the reactor pumps, used to supply cooling water, stopped operating, causing an automatic shutdown. This triggered an

In the early hours of April 26, 1986, a test gone awry caused two explosions that took out Chernobyl's Unit 4, killing two workers instantly and 29 more in the next four months. (The long-term death count is still growing, and all estimates are disputed among scientists, government officials, and international bodies.) Together,

The disaster took place on April 1986, and was caused by inexperienced staff. When the power plant had to undergo a special test, to make sure that sufficient amount of cooling water would be supplied to the reactor in case of a power outage. However, the test had been delayed, because the national grid required the power output more than the expected time. Hence, the test was postponed after midnight where the night shift had to come. The night shift had little experience about such a test as most of them were electrical engineers rather than nuclear. On the other hand, the night shift had to perform the test before the grid needed the power again, otherwise they would have all been fined or fired. Consequently, lead to an unnecessary pressure on the personnel, which in turn increased the probability of making incorrect

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.

The earthquake made the nuclear leak, and the nuclear leak not only affected the human activities, but also affected the environment as well. The nuclear radiation affects the soil and the sea around the station. Many fish died and the sea was polluted.

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.