Safety Evaluation Of Indian Nuclear Power Plants Post Fukushima Incident

1. 2. 3. 4. Physical Causes of Fukushima Event In the accident of Fukushima Daiichi NPPs, huge Earth quake of magnitude 9 followed by Tsunami of Height 15m, caused serious situation common to units 1-3 such as Loss of external power supply from grid due to Earth quake. Emergency power sources like DG, Batteries continued for around 1 hr, and failed subsequently due to Tsunami. Loss of core cooling (Decay heat_removal function) due to unavailability of all sources of power supply. Loss of Reactor decay heat removal resulted in fuel over heating- Metal Water Reaction Hydrogen Generation & Explosion inside the outer Building. - N.B: More information given as links to Bold Italics.

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