Česarkoli se na Kitajskem lotijo, vodi zaradi velikega obsega vlaganj v raziskave in razvoj ter velikega obsega kasnejše proizvodnje v ogromno tehnološko prednost in prednost glede produktivnosti pred drugimi državami. Od navadnih solarnih panelov, baterij za avte, električnih avtov, elktrolizerjev do jedrskih reaktorjev. Kitajska je kot prva začela s komercialno uporabo jedrskih reaktorjev 4. generacije (ki so bolj varni od konvencionalnih; glejte spodaj), glede konvencionalnih jedrskih reaktorjev pa so njihove cene za polovico nižje od najbližjega zahodnega zasledovalca (Južna Koreja). Konkurenca kitajskim reaktorjem so samo ruski. Seveda nič od obojega ne bomo (smeli) kupiti v Sloveniji.
LAST YEAR engineers at China’s Shidaowan nuclear power plant turned off the pumps pushing coolant around the reactor core. Then they waited. At a typical power plant, this would have been dangerous. Nuclear reactions create lots of heat, which is normally transferred by a coolant and then converted into electricity. With the pumps off, the nuclear fuel might have continued to heat up until it liquefied and damaged the reactor. Such “meltdowns” can release radiation. That is what happened in 2011 at the Fukushima Dai-ichi nuclear plant in Japan after a tsunami damaged its cooling systems.
But no such disaster occurred at Shidaowan. At first the reactor did heat up. Then it cooled down before any damage was done, says a paper by the plant’s engineers published in July. This was thanks to the plant’s clever design. Conventional reactors are powered by long fuel rods containing uranium. At Shidaowan, though, the fuel is in the form of tiny particles of uranium coated with carbon and other chemicals, and embedded in tennis-ball-sized spheres. These are known as “pebbles”. They can cope with extremely high temperatures without melting.




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