China Could Have a Meltdown-Proof Nuclear Reactor Next Year
This article by Richard Martin for the MIT Technology Review may be of interest to subscribers. Here is a section:
Read entire articleConstruction of the plant is nearly complete, and the next 18 months will be spent installing the reactor components, running tests, and loading the fuel before the reactors go critical in November 2017, said Zhang Zuoyi, director of the Institute of Nuclear and New Energy Technology, a division of Tsinghua University that has developed the technology over the last decade and a half, in an interview at the institute’s campus 30 miles south of Beijing. If it’s successful, Shandong plant would generate a total of 210 megawatts and will be followed by a 600-megawatt facility in Jiangxi province. Beyond that, China plans to sell these reactors internationally; in January, Chinese president Xi Jinping signed an agreement with King Salman bin Abdulaziz to construct a high-temperature gas-cooled reactor in Saudi Arabia.
“This technology is going to be on the world market within the next five years,” Zhang predicts. “We are developing these reactors to belong to the world.”
Pebble-bed reactors that use helium gas as the heat transfer medium and run at very high temperatures—up to 950 °C—have been in development for decades. The Chinese reactor is based on a design originally developed in Germany, and the German company SGL Group is supplying the billiard-ball-size graphite spheres that encase thousands of tiny “pebbles” of uranium fuel. Seven high-temperature gas-cooled reactors have been built, but only two units remain in operation, both relatively small: an experimental 10-megawatt pebble-bed reactor at the Tsinghua Institute campus, which reached full power in 2003, and a similar reactor in Japan.