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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
EPA administrator Lee Zeldin talks the future of nuclear
In a recent interview on New York radio station 77 WABC, administrator of the Environmental Protection Agency Lee Zeldin talked with host John Catsimatidis about the near-term future of the domestic nuclear industry and the role the EPA will play in the sector.
Catsimatidis kicked off the interview by asking if the U.S. will be able to reach total energy independence. Zeldin responded by saying that decreasing energy dependence on other countries, especially adversaries, was a top priority for him and the Trump administration.
J. D. Rader, B. H. Mills, D. L. Sadowski, M. Yoda, S. I. Abdel-Khalik
Fusion Science and Technology | Volume 64 | Number 2 | August 2013 | Pages 315-319
Divertor and High-Heat-Flux Components | Proceedings of the Twentieth Topical Meeting on the Technology of Fusion Energy (TOFE-2012) (Part 1), Nashville, Tennessee, August 27-31, 2012 | doi.org/10.13182/FST13-A18096
Articles are hosted by Taylor and Francis Online.
The helium-cooled modular divertor concept with integrated pin array developed by the Karlsruhe Research Center (FZK) is unusual among helium-cooled tungsten divertor designs in that it relies upon an array of pin fins on the back of the cooled surface, instead of jet impingement, to cool the plasma-facing surface. The Georgia Tech group experimentally studied a similar design constructed of brass which combined jet impingement with an array of identical cylindrical pin fins using air at nondimensional coolant mass flow rates, i.e. Reynolds numbers, which spanned the range expected under prototypical conditions. The results suggested that the pin-fin array, at least for the particular geometry studied, provides little, if any, additional cooling beyond that provided by jet impingement.Given that this earlier study considered only one pin-fin array geometry, however, a numerical study was performed to investigate whether changes in the array geometry could improve performance. Specifically, numerical simulations using the commercially available computational fluid dynamics software package ANSYS® 14.0 was used to examine how varying the pitch-to-diameter ratio for the fin array and the height of the fins affected average pressure boundary temperature and the pressure drop across the divertor. These results can, with appropriate experimental validation, be used to determine whether pin-fin arrays can be used to improve the thermal performance of helium-cooled tungsten divertors.