Rbmks

Some articles on rbmks, rbmk:

Nuclear Meltdown - Soviet Union-designed Reactors - RBMKs
... Soviet designed RBMKs, found only in Russia and the CIS and now shut down everywhere except Russia, do not have containment buildings, are naturally unstable (tending to dangerous power fluctuations), and ... The reactor from the Chernobyl Disaster was an RBMK reactor ... RBMK ECCS systems only have one division and have less than sufficient redundancy within that division ...
RBMK - Design Flaws and Safety Issues - High Positive Void Coefficient
... In RBMKs, light water was used as a coolant moderation was instead carried out by graphite ... In RBMKs, generation of steam in the coolant water would then in practice create a void, a bubble that does not absorb neutrons the reduction in moderation by light water is irrelevant, as graphite is still ... Such a condition is called a positive void coefficient, and the RBMK has the highest positive void coefficient of any commercial reactor ever designed ...