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There are no channel covers on the fuel channels of the reactor; the control rod drives are below the colored covers. RBMK reactor with fuel channel covers. The top of the reactor is covered by the upper biological shield (UBS), also called "Schema E", or, after the explosion (of Chernobyl Reactor 4), Elena.
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English: RBMK-Core of Chernobyl-4: Positions of control rods (insertion depth in centimeters) approximately 1min30s before the explosion on Saturday, 26. April 1986, last signal of SKALA control system at 1:22:30 h. green: (167) control rods blue: (12) neutron detectors yellow: (32) shortened absorber rods inserted from below the reactor core
The RBMK is notable for its circular reactor lid where the control rod drive mechanisms reside and where loading and unloading of fuel occurs by means of a massive crane-mounted machine. In essence, the hall is a heavy-walled hot cell designed to shield potentially high radiation levels while fuel operations are underway.
Chernobyl Reactors 5 and 6 are unbuilt reactors, a part of Chernobyl Nuclear Power Plant's third generation phase. Intended as RBMK-1000 units capable of approximately 1,000 megawatts each, construction began on 1 July 1981 and was partially completed by the time of the Chernobyl disaster on 26 April 1986. The reactors were abandoned afterwards ...
1943 Reactor diagram using boron control rods. Control rods are inserted into the core of a nuclear reactor and adjusted in order to control the rate of the nuclear chain reaction and, thereby, the thermal power output of the reactor, the rate of steam production, and the electrical power output of the power station.
The plant has four nuclear reactors of the RBMK-1000 type, all of which are first generation units similar to that of Kursk and Chernobyl units 1 and 2. Each unit has a separate reactor building but the turbine hall is shared between 2 reactors. [2] In 2008, construction started on Leningrad II with 2 VVER-1200 type reactors. They will ...