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The RBMK (Russian: реа́ктор большо́й мо́щности кана́льный, РБМК; reaktor bolshoy moshchnosti kanalnyy, "high-power channel-type reactor") is a class of graphite-moderated nuclear power reactor designed and built by the Soviet Union.
A bigger problem was the design of the RBMK control rods, each of which had a graphite neutron moderator section attached to its end to boost reactor output by displacing water when the control rod section had been fully withdrawn from the reactor. That is, when a control rod was at maximum extraction, a neutron-moderating graphite extension ...
Chernobyl Nuclear Power Plant's original Soviet plan consisted of 12 units, and that units 5 and 6 were phase three of the plan. At the time, only two phases were complete, reactors 1, 2, 3 and 4. Both units were intended to be RBMK-1000 and would generate approximately 1,000 megawatts each, and also supported by two cooling towers located ...
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Main building and reactor containment is designed by Atomenergoproekt. [6] The MKER is intended to directly substitute for existing RBMK plants producing heat, electricity and medical isotopes. [5] The reactor building of the MKER consists of a dual containment structure with an inner diameter of 55.5 meters.
RBMK reactors, such as the reactors at Chernobyl, had a dangerously high positive void coefficient. This allowed the reactor to run on unenriched uranium and to require no heavy water, saving costs; RBMKs were also capable of producing weapons-grade plutonium, unlike the other main Soviet design, the VVER. [1]
A: So the reactor is fueled, the reactor is closed, bolted shut. Control rods are slowly being pulled out. The control rods absorb neutrons without undergoing any nuclear reactions.
Online refuelling equipment for Magnox reactors proved to be less reliable than the reactor systems, and retrospectively its use was regarded as a mistake. [4] Molten salt reactors and pebble-bed reactors also require online handling and processing equipment to replace the fuel during operation.