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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Satoshi Sato, Koichi Maki, Hideyuki Takatsu, Yasushi Seki
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 1076-1080
Neutronics Experiments and Analyses | doi.org/10.13182/FST96-A11963093
Articles are hosted by Taylor and Francis Online.
Shielding analyses for toroidal field coils (TFCs) around the exhaust duct in a nuclear fusion experimental reactor have been performed by two-dimensional discrete ordinate method, and their peak nuclear responses were evaluated. From the results, it was found that the duct wall of about 410 mm thickness was required incase of no shield structure behind the divertor in ordsr to satisfy the radiation limits of TFCs. Taking overestimation due to the analysis model simulating the exhaust duct with a toroidally continuos opening into account, nuclear responses may possibly be lower than the radiation limits by 300 mm thick duct wall. By providing a 480 mm thick shield with 140 mm wide slits behind the divertor, nuclear responses were reduced to about 1/20, and they were equal to or lower than the radiation limits for 200 mm thick duct wall. Also, taking overestimation, nuclear responses may possibly be more than six times lower than the radiation limits for 200 mm thick duct wall.
