China completes concrete pouring at world’s first land-based small nuclear power plant
Китай АЭС
The China National Nuclear Corporation (CNNC) has completed pouring concrete into the floor slab of the ACP100 Demo Small Modular Reactor at the Changjiang Nuclear Power Plant (NPP) in Hainan Province in southern China. The 125 megawatt (MW) reactor will be commissioned in 2026 and will be able to generate 1 billion kilowatt hours (KWh) of electricity annually, enough to power 526,000 households.

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The floor slab is 60 metres long and 53 metres wide. It contains 1,300 tons of steel rods and consists of nine sections. At the basement of the steam turbine, the floor slab is 2.5 metres thick, while the remaining eight sections vary from one to four metres.

The project name is Linglong One. Its development started in 2010. The design layout, which involves the installation of the main components of the primary coolant circuit inside the reactor pressure vessel, was completed in 2014, and in 2016 the project passed safety audit performed by the International Atomic Energy Agency (IAEA). Finally, in June 2021, the National Development and Reform Commission of the People’s Republic of China issued a permit for the construction of the station. The construction will take 58 months. Steam generators will be manufactured by one of CNNC’s affiliate companies, and the reactor pressure vessel will be manufactured by Shanghai Boiler Works Limited, an enterprise specialising in the production of line heaters for NPP. Other internal components of the plant will be manufactured by Dongfang Electric Corporation, one of the three leading Chinese power plant equipment manufacturers (the other two are Harbin Electric Corporation and Shanghai Electric Group).

Apart from electric power, the multi-purpose reactor will be able to generate heat and industrial steam, and will also be used for water desalination. The Linglong One project will be the world’s first land-based small nuclear power plant (SNPP). The very first floating nuclear power plant was put into operation in 2020 in Russia, in the port of Pevek, Chukotka Autonomous District. The plant, which was commissioned by Rosatom Corporation in St. Petersburg, was tested in the port of Murmansk and then transported to Pevek via the Northern Sea Route. By 2028, Rosatom is going to build a land-based SNPP in the Yakut village of Ust-Kuyga located a few dozen kilometres from Kyuchus gold deposit. The plant will have a 55 MW RITM-200N reactor.


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