Quote:
Originally Posted by cameraman
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As pointed out in other thread, Chernobyl reactor of RBMK-type has another design than Fukushima one. RBMK wasn't in hard containment.
quote :
On 26 April 1986, at 01:23 a.m. (UTC+3), reactor four suffered a catastrophic power increase, leading to explosions in the core. This dispersed large quantities of radioactive fuel and core materials into the atmosphere[6]:73 and ignited the combustible graphite moderator. The burning graphite moderator increased the emission of radioactive particles, carried by the smoke,
as the reactor had not been contained by any kind of hard containment vessel (unlike all Western plants). The accident occurred during an experiment scheduled to test a potential safety emergency core cooling feature, which took place during the normal shutdown procedure.
Chernobyl disaster