China’s Linglong One, an ACP100 SMR, has reached near completion after the lower part of the reactor internals were installed last week at the SMR demonstration project at the Changjiang site on China’s island province of Hainan.
According to the China National Nuclear Corporation (CNNC), the “hanging basket assembly” of the internals was lowered into the reactor pressure vessel of the ACP100 on 29 August.
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Reactor internals play an important role in the reactor pressure vessel as they support the core, maintain fuel alignment, direct primary coolant flow, provide radiation shields for the vessel and guide in core instrumentation.
“The successful placement of the hanging basket assembly marked the official start of the installation of the internal components of the world’s first Linglong One reactor,” CNNC said.
In July 2019, CNNC began construction of the ACP100 reactor at the Changjiang site, where two CNP600 pressurised water reactors are already operational.
So far, construction of the SMR has proceeded according to plan. First concrete was poured in July 2021, with CNNC expecting full construction to take 58 months.
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By GlobalDataWorld Nuclear News reported that equipment installation work began in December 2022 and the main internal structure of the reactor building was completed in March 2023.
Expected to be complete by 2026, Linglong One will be the world’s first commercial onshore SMR.
The reactor will have a power generation capacity of 125MW and is set to produce one billion kilowatts of electricity a year, meeting the needs of 526,000 households, according to the South China Morning Post. In addition, the reactor will be used to provide heating for steam production and seawater desalination.
In June, Washington-based research institute the Information Technology & Innovation Foundation said that China is far ahead of other countries, including the US, in the deployment of advanced nuclear technologies, highlighting that the Linglong One SMR was the first of its kind to receive approval from the International Atomic Energy Agency.
