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2. Nuclear reactor safety system - Wikipedia

   en.wikipedia.org/wiki/Nuclear_reactor_safety_system

   The High Pressure Coolant Injection (HPCI) System consists of a pump or pumps that have sufficient pressure to inject coolant into the reactor vessel while it is pressurized. It is designed to monitor the level of coolant in the reactor vessel and automatically inject coolant when the level drops below a threshold.

3. Loss-of-coolant accident - Wikipedia

   en.wikipedia.org/wiki/Loss-of-coolant_accident

   The Fukushima Daiichi nuclear disaster in 2011 occurred due to a loss-of-coolant accident. The circuits that provided electrical power to the coolant pumps failed causing a loss-of-core-cooling that was critical for the removal of residual decay heat which is produced even after active reactors are shut down and nuclear fission has ceased.

4. Three Mile Island accident - Wikipedia

   en.wikipedia.org/wiki/Three_Mile_Island_accident

   [48] [49] At 4:15 a.m., the relief diaphragm of the pressurizer relief tank ruptured, and radioactive coolant began to leak into the general containment building. This radioactive coolant was pumped from the containment building sump to an auxiliary building, outside the main containment, until the sump pumps were stopped at 4:39 a.m. [49]

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6. Timeline of the Fukushima nuclear accident - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_the_Fukushima...

   Coolant injection into reactors 1 and 3 is interrupted for 50 minutes due to a loss of power after a strong earthquake in the region. [170] Workers plan to pump water into turbine condensers, but need to pump water out of them first. Work to transfer water from the unit 2 and unit 1 condensers to a central storage tank was completed on 9 and 10 ...

7. Boiling water reactor safety systems - Wikipedia

   en.wikipedia.org/wiki/Boiling_water_reactor...

   The Reactor Protection System (RPS) is a system, computerized in later BWR models, that is designed to automatically, rapidly, and completely shut down and make safe the Nuclear Steam Supply System (NSSS – the reactor pressure vessel, pumps, and water/steam piping within the containment) if some event occurs that could result in the reactor entering an unsafe operating condition.

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9. Play Just Words Online for Free - AOL.com

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   Just Words. If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online! By Masque Publishing