How many pumps does reactor 3 contain?
The plant comprises six separate boiling water reactors originally designed by General Electric (GE), and maintained by the Tokyo Electric Power Company (TEPCO). At the time of the quake, Reactor 4 had been de-fueled while 5 and 6 were in the cold shutdown for planned maintenance.
Which reactor exploded in Fukushima?
reactor 4
The hydrogen explosion in reactor 4 was caused by hydrogen coming out from the spent fuel pool. In that pool, there were (and are) used nuclear fuel rods that released and still release decay heat. As the water level dropped, the used fuel rods were exposed to the air and hydrogen was formed.
How many Fukushima reactors are there?
six
The Fukushima Daiichi Nuclear Power Plant comprised six separate boiling water reactors originally designed by General Electric (GE) and maintained by the Tokyo Electric Power Company (TEPCO). At the time of the Tōhoku earthquake on 11 March 2011, Reactors 4, 5, and 6 were shut down in preparation for re-fueling.
What went wrong at Fukushima?
At the Fukushima nuclear power plant, the gigantic wave surged over defences and flooded the reactors, sparking a major disaster. Authorities set up an exclusion zone which grew larger and larger as radiation leaked from the plant, forcing more than 150,000 people to evacuate from the area.
What type of reactor is the Fukushima Daiichi reactor?
The Fukushima Daiichi reactors were GE boiling water reactors (BWRs) of an early (1960s) design supplied by GE, Toshiba and Hitachi, with what is known as a Mark I containment. Reactors 1-3 came into commercial operation 1971-75. Reactor capacity was 460 MWe for unit 1, 784 MWe for units 2-5, and 1100 MWe for unit 6.
What is Unit 3 at Fukushima Daiichi?
Unit 3 of the Fukushima Daiichi Nuclear Power Plant (福島第一原子力発電所3号機の建設 Fukushima Daiichi Genshiryoku Hatsudensho Sangoki no Kensetsu) was one of the reactors in operation on 11 March 2011, when the plant was struck by the tsunami produced by the Tohoku earthquake.
How many nuclear reactors melted down at Fukushima?
^ “3 nuclear reactors melted down after quake, Japan confirms”. CNN. 7 June 2011. Retrieved 13 July 2011. ^ ” ‘ Melt-through’ at Fukushima? / Govt report to IAEA suggests situation worse than meltdown”. Yomiuri. 8 June 2011.
What happened in Fukushima Japan in 2011?
2011 tsunami and aftermath. The Fukushima Daiichi nuclear disaster (福島第一原子力発電所事故, Fukushima Dai-ichi (pronunciation) genshiryoku hatsudensho jiko) was a series of equipment failures, nuclear meltdowns, and releases of radioactive materials at the Fukushima I Nuclear Power Plant, following the Tōhoku earthquake and tsunami on 11 March 2011.