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The AP1000 design traces its history to two previous designs, the AP600 and the System 80.. The System 80 design was created by Combustion Engineering and featured a two-loop cooling system with a single steam generator paired with two reactor coolant pumps in each loop that makes it simpler and less expensive than systems which pair a single reactor coolant pump with a steam generator in each ...
Power output will be 1150 MWe, with a 60-year design life, and would use a combination of passive and active safety systems with a double containment. CNNC's 177 fuel assembly design was retained. Initially the merged design was to be called the ACC-1000, [ 8 ] [ 9 ] [ 10 ] but ultimately it was named Hualong One.
The Westinghouse AP1000 was planned to be the main basis of China's move to Generation III technology. In July 2018, the first of four AP1000 reactors was connected to the grid. [52] Following Westinghouse's bankruptcy in 2017, it was decided in 2019 to build the Hualong One rather than the AP1000 at Zhangzhou. [53]
The System 80+ was developed into the Korean OPR-1000 and later APR-1400, [3] and contributed design features to the AP1000. [ 4 ] The NRC has certified the System 80+ for the U.S. market, but Westinghouse ceased actively promoting the design for domestic sale, prior to their bankruptcy.
Announcement of the project start came roughly twelve months after Westinghouse won a bidding contest over other companies. The contract for the new plant involved The Shaw Group (now Chicago Bridge and Iron), a minority shareholder in Westinghouse. Westinghouse was controlled by Japanese Toshiba. The Shaw Group did provide engineering ...
The design has been scaled up and improved with the AP1000. Certification testing and analysis of the AP600 and AP1000 reactor designs for Westinghouse were conducted at the APEX facility at Oregon State University. The one-quarter scale reduced pressure integral system certified the passively safe systems that cool the reactor core using ...
Initial plans called for three AP1000 units at Moorside, which is a nuclear power plant designed and sold by Westinghouse. [28] The design has improved use of passive nuclear safety , featuring fewer valves and pumps than previous PWRs and allowing cooling without intervention for up to 72 hours, relying mostly on natural processes such as ...
Construction of unit 2 started in June 2010, at that time the fourth Chinese AP1000 project together with the two units of the Sanmen NPP. [9] Commercial operation began in January 2019, after having completed a full-power test run for a week (168 hours). Both units will provide together about 20 TWh of electricity to the grid of Shandong ...