The difference being that Mark IVs are allowed to lose components to overheating, and that must be replaced before the reactor goes critical. Mark IVs still have to run at least 10% of a cycle, just like Mark IIIs. Mark IIIs have the additional condition that they must run at least 10% of a cycle (16 mins 40 secs) before reaching critical heat or losing any components. This can be done manually or by using Redstone. Mark IIIs are unable to complete a full cycle without going into meltdown and thus need to be shutdown mid-cycle in order to deal with the high amount of excess heat. Mark III reactors tend to have an emphasis on efficiency at the cost of safety. Mark II s that can run 16 times or more get the special sub-class 'E' (Mark II-E) for almost being a Mark I. For example Mark II-3 will need a cool down period after running 3 cycles in a row. The sub-class for Mark IIs denote how many cycles the design can run before reaching critical heat levels. A Mark II must complete at least one full cycle before encountering heat problems. Mark II designs produce a small amount of excess heat and will need to be given a cool down period eventually to prevent the hull reaching 85% maximum heat or melting component. Mark Is have two sub-classes: Mark I-I for design that do not rely in outside cooling in anyway and Mark I-O for those that do. Mark Is tend have a low efficiency, but that's the price of a completely safe reactor. Until that happens, you can take guided tours of the disaster site: Ukraine's Ministry of Atomic Power started letting visitors in a few years ago.Mark I reactors generate no excess heat each reactor tick and thus are safe to use continuously for as long as you supply Uranium. The plant is scheduled to be dismantled and cleared away by the year 2065. Outbreaks of cancers and birth defects have been blamed on the Chernobyl disaster but never scientifically substantiated.īecause of power demand, the plant operated with its three remaining reactors for more than 14 years before being decommissioned in December 2000. However, a cover-up by Soviet authorities has spurred much speculation over what the long-term effects of the incident are. Officially there were 56 fatalities, mostly from radiation poisoning after the event. The death toll from the Chernobyl disaster is not well documented. Fifty thousand people were evacuated just from the town of Pripyat, turning it into an abandoned city virtually overnight. Consequently more than 300,000 people were evacuated from a roughly 18-mile zone that would later be dubbed the Zone of Alienation. The cloud of radioactive debris spewed by the disaster drifted over Ukraine, Belarus and Russia. The resulting concrete sarcophagus exists to this day, but questions of its stability and lifespan remain. It didn't.Įngineers finally poured 20,000 tons of concrete and lead onto the reactor to contain the radiation in December 1986. Helicopters then dropped about 5,000 metric tons of sand, lead and boric acid onto the reactor, in hopes it would contain the radioactive mess. This cleanup crew could only be on the rooftops of surrounding buildings for a maximum of 40 seconds, because the radiation levels were so high. Workers wearing heavy protective suits shoveled radioactive debris into what remained of the reactor. Soviet engineers scrambled to come up with a containment solution.
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