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Double spaced. This is SOME info that could be used The Chernobyl disaster is considered the most disastrous nuclear power plant accident in history, both in terms of cost and casualties. • Chernobyl is a city in Ukraine that is located around 36 miles North of the Capital, Kiev. • Before the disaster Ukraine was home to around 14,000 people. • First nuclear power plant in Ukraine was built here. • Known as worst nuclear disaster in the history of the world. • Reported 31 deaths but (WHO) reports 50 due to radiation exposure According to world nuclear association this is what happened: 1. Workers at Chernobyl reactor number four were performing test to see if turbines could provide enough energy to keep the coolant pumps running if there was a loss of power and if they could keep these coolant pumps running until the emergency generator was able to kick in. 2. This test had been done before and was unsuccessful 3. They turned down the reactor to 25 percent of its capacity but a problem arose when the power plummeted to 1 percent. They then tried to increase the power but a huge power surge arose and the reactors emergency shutdown failed. 4. One engineer wanted to abort the test but was told by a senior to carry on. This caused the reactor to become even more unstable. The biggest blame for this disaster lies with the senior management of Chernobyl for a few reasons. (1)- Plant director Viktor Bryukhanov was under constant pressure to ensure that Reactor #4 would be finished on schedule so that substantial communist party bonuses could be won. To do so he was forced to use tar [highly flammable] to coat the roof of the reactor. (2)- The Soviet Union’s Atomic Energy Commission did not make aware the fact that the reactors themselves were fatally flawed: they were dangerous to run at lower power levels. (KGB documents showed that from 1979 to 1986 authorities ignored repeated warnings of the danger at Chernobyl.) But the biggest problem is this: (3)- Although Leonid Toptunov is 2nd-in-command for the control room of Chernobyl’s Reactor #4 neither he nor control room foreman Aleksandr Akimov was in charge. Safety test preparations were instead overseen by the plant’s Deputy Chief Engineer Anatoly Dyatlov who gave the order for the test to be only carried out at a power level of 200 megawatts (USSR AEC test regulations STRICTLY set a minimum power level of 700 megawatts for the test) but Dyatlov assumes his position [Chief Engineer Nikolai Fomin was asleep in Pripyat during this critical test.] allows for him to set any parameters as he wishes, even for safety tests. Needless to say; when problems were first spotted, the men did take steps to prevent the disaster. When Akimov noticed the power surge he immediatly did what his training told him to do: hit the emergency shutdown button. (Soviet nuclear reactor emergency shutdown buttons are given the name AZ-5) but again, the USSR AEC hid one tiny fact from the knowledge of plant workers. (4)- The AZ-5 button automatically lowers the boron control rods into the reactor to try and stop the nuclear reaction ASAP, but the power levels shot up hundred-folds after that. This is because the boron control rods themselves are tipped with graphite (same stuff they use for the block that houses the fuel rods) which increases power, NOT reducing it. • On the morning of April 26th, 1986, the world experienced one of the most devastating nuclear accidents in history. The Chernobyl Disaster took place in Chernobyl, Ukraine, a small city which was home to around 14,000 people. It is claimed that the incident caused around fifty- six direct deaths. The Chernobyl Disaster caused a negative effect on organizations and money. (XXXXSENTENCEXXXX) The negative outcomes of the Chernobyl Disaster still have an impact on lives today. Today, it is prohibited to be within (XXX) miles within the (city, atmosphere) of Chernobyl. The Chernobyl disaster is the most disastrous nuclear power plant accident in history, both in terms of cost and casualties. Chernobyl is a city in Ukraine that is located around 36 miles North of the Capital, Kiev. In the night from 25 to 26 April in the two power plant complexes, there were 160 people on duty, including technicians and maintenance personnel of the various departments. Three hundred more workers were present at the building site of the third complex of the blocks 5 and 6.

CHERNOBYL DISASTER

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