Natural disasters and Engineering errors

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Presentation transcript:

Natural disasters and Engineering errors William Kuzma

What is the Fukushima Daiichi nuclear disaster? The Fukushima Daiichi nuclear disaster was a disaster where emergency generators responsible for cooling a nuclear rector failed; leading to nuclear meltdowns and the release/exposer of radioactivity and radioactive materials/particles (fallout). The disaster Caused immense damage by means of radiation and fallout, with an exclusion zone covering 1/3 of the Fukushima region and misplacing hundreds of thousands

Where and when did the Fukushima Daiichi nuclear disaster take place? Japan, Tohoku, Fukushima in the Fukushima Daiichi Nuclear Power Plant The disaster started on March 11, 2011. Map of the Fukushima Daiichi nuclear disaster exclusion zone

Who was responsible for the Fukushima Daiichi nuclear disaster? The company responsible for the Fukushima Daiichi Nuclear Power Plant was the Tokyo Electric Power Company(TEPCO). The 2011 Tōhoku earthquake (which was a magnitude 9 earthquake) was responsible for creating a tsunami that damaged the plant and its backup generators.

Why did the Fukushima Daiichi nuclear disaster happen? Attributed by three main things; environmental factors, poor planning/carelessness, and poor engineering. Environmental factors - If there was no Tsunami in the first place their cooling system would have never failed and the generators would have been able to support the cooling system and all other normal functions. Poor planning /carelessness- The Tokyo Electric Power Company dismissed the history of the location in regards to tsunami and never took precautions in the possibility of a tsunami. A study in 2008 made it clear that there was an immediate need to better protect the plant from flooding by the seawater. Poor engineering- The original cooling system plans showed that the piping systems for two reactors in the isolation condenser separated one another. But when sending the application for approval they showed the piping connected outside the reactor. But they never made the change to the original plans which violated regulations. In 2008 when an engineer inspected one of the generators he noted that if a tsunami were to ever occur there would be flooding. Almost nothing was done to secure the generators but added a door to its entrance.

Bibliography http://www.world-nuclear.org/information-library/safety-and- security/safety-of-plants/fukushima-accident.aspx https://www.economist.com/news/asia/21676828-lack-trust-authorities- hindering-resettlement-near-fukushima-back-nuclear-zone https://en.wikipedia.org/wiki/Fukushima_Daiichi_nuclear_disaster Image: https://www.economist.com/news/asia/21676828-lack-trust- authorities-hindering-resettlement-near-fukushima-back-nuclear-zone