The ACP100 modular reactor, known as Linglong One, completed its cold functional tests in Changjiang, Hainan province, according to the China National Nuclear Corporation(CNNC).
Tightness tests on the ACP100 modular reactor
The procedures will validate that the reactor’s safety systems and critical components are correctly installed. During the tests, the tightness of the primary circuit was evaluated, including pressure vessels, valves and piping, in addition to cleaning the main circulation ducts.
The simultaneous operation of the reactor and its auxiliary systems recorded the first complete integration of the assembly. According to CNNC, the results demonstrate the structural integrity of the system and confirm the quality of the facility.
The next stage of the schedule will be the execution of hot functional tests. These involve raising the temperature of the reactor cooling system to simulate to simulate real operating conditions prior to nuclear fuel loading.
The ACP100 is a 125 MWe integrated pressurized water reactor designed to provide modular solutions for power generation, steam production, district heating and desalination. Development began in 2010 and, after passing an IAEA safety review in 2016, it became the world’s first SMR to receive such approval.
This project was officially launched in 2019. Construction began in July 2021, equipment installation in December 2022 and the containment dome was placed in February 2025. It is also scheduled to enter commercial operation in 2026.
Source and photo: CNNC
