Nuclear News Weekly Roundup - 06/04 - 06/08
CNNC Signs Multiple Contracts with Russia’s Rosatom for Gen III & IV Reactor Technology Cooperation
On June 8th, one day before the Shanghai Cooperation Organization Summit in Qingdao, state-owned nuclear utilities CNNC and Rosatom Corp. signed three framework agreements: the Tianwan NPP Unit 7/8 Framework Contract, the Xudapu NPP Framework Contract, and the China Demonstration Fast Reactor Equipment Supply and Service Procurement Framework Contract. According to CNNC’s announcement, Tianwan Units 7 & 8, as well as Xudapu Units 3 & 4 (phase II), will use Russian VVER-1200 reactor technology. The two parties will also cooperate on equipment and services for the China Demonstration Fast Reactor (CDFR) currently under construction at Xiapu as of December 2017.
Xudapu Unit 1 & 2 (Phase I) were approved to use the AP1000 design, and prior to Friday’s announcement it was widely assumed that Phase II would also feature AP1000 reactors. This decision represents an unprecedented break with convention to site two different Gen III design trees for construction at a single site. The two corporations signed the contracts at the Great Hall of the People in Beijing, witnessed by Chinese President Xi Jinping and Russian President Putin.
Fangchenggang Unit 3’s Containment Dome Attached
On May 23rd, the containment dome of Fangchenggang Unit 3, CGN’s HPR000 demonstration project, was successfully installed. The milestone indicates that Unit 3’s civil construction phase has completed and the main installation phase has begun. The containment dome has a height of 13 meters, diameter of 45 meters and weighs more than 220 tons.
Key Progress on the National S&T Major Nuclear Project CAP1400 Demonstration Project
On April 26th, the “CAP1400 passive containment cooling system performance study and research” project passed NEA inspection. As a key safety and design feature of the CAP1400 reactor type, the passive containment cooling system uses gravity-driven injection, interior steam condensation and exterior water film evaporation to remove post-accident heat and protect the integrity of the containment. The project was issued by the NEA in 2011 as a joint project between SNERDI, SNPTC’s Huaqing Nuclear Technology Development Company, and Shanghai Jiao Tong University.
On June 1st, the “CAP1400 NPP digital instrumentation and control (I&C) system prototype development” project passed the NEA inspection, signifying the success of a NPP digital control system with proprietary intellectual property. A digital control system serves as the nervous system of a NPP and is key to safe and stable operation of the plant. NPP digital control technology is seen as one of the final missing pieces to reach complete localization of Gen III technology. The CAP1400 NPP digital I&C system prototype development project was established in 2014, issued by the NEA. SNPTC’s State Nuclear Power Automation System Engineering Company led the project. Other contributors include SERDI and State Nuclear Power Engineering Company.