China's CAP1400 reactor vessel passes pressure tests | World Nuclear News

Martian

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China is currently building an advanced 1.4 GigaWatt CAP1400 nuclear reactor. It has state-of-the-art passive safety features. The most complex element is the reactor vessel. The massive 487-tonne CAP1400 reactor vessel recently passed its hydraulic pressure tests.

CAP1400 Nuclear Power Plant | [China's] State Nuclear Power Technology Corporation (SNPTC)

"The China Advanced Passive pressurized water reactor 1400MWe (CAP1400) is one of the serial research and development of PWRs adopting passive engineered safety features initiated by Shanghai Nuclear Engineering Research & Design Institute (SNERDI), which consists of CAP50, CAP150, CAP200, CAP1000, CAP1400 and CAP1700. The design of CAP1400 is based on the experience of the PWR technology R & D for more than 40 years, construction and safe operation for more than 20 years in China. It absorbs the accumulated experience and achievements of the world's first batch of AP1000 units. Furthermore, it adopts safety enhancement measures based on lessons from Japanese Fukushima nuclear accident.
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CAP1400 has systematic severe accident prevention and mitigation strategy, including passive containment cooling system, hydrogen control system, and especially, the in-vessel retention of molten core debris (IVR) which is the key mitigation strategy. IVR is used to ensure the reactor vessel remains intact and eliminate the consequent threats to containment integrity by the external reactor vessel cooling (ERVC). It can avoid the more severe and complex ex-vessel phenomena of melt.

Moreover, due to the Fukushima nuclear accident happened in Mar 11 2011, the standardized design has been reevaluated based on the lessons learned. Specific design improvements have been taken to enhance the plant’s capability to resist flooding and seismic and to supply cooling water and electrical power after 72hrs of postulated accident initiation. The basic design of CAP1400 started in July 2010 and completed in Dec 2011."
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CAP1400 reactor vessel passes pressure tests | World Nuclear News

"The vessel - with a total weight of about 487 tonnes - underwent a two-stage hydraulic pressure test to confirm the integrity of its welds and seals. The tests were witnessed by officials from China's regulator, the National Nuclear Safety Administration; reactor designer, the Shanghai Nuclear Engineering Research and Design Institute (SNERDI); and the manufacturer of the vessel, China First Heavy Machinery Group."

 
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Armand2REP

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Building a 2005 Westinghouse reactor in 2017 and the company just declared bankruptcy. Good luck getting support for that.
 

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