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Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Latest News
Can hydrogen be the transportation fuel in an otherwise nuclear economy?
Let’s face it: The global economy should be powered primarily by nuclear power. And it probably will by the end of this century, with a still-significant assist from renewables and hydro. Once nuclear systems are dominant, the costs come down to where gas is now; and when carbon emissions are reduced to a small portion of their present state, it will become obvious that most other sources are only good in niche settings. I mean, why use small modular reactors to load-follow when they can just produce that power instead of buffering it?
X. R. Wang, S. Malang, M. S. Tillack, ARIES Team
Fusion Science and Technology | Volume 60 | Number 1 | July 2011 | Pages 218-222
Divertor & High Heat Flux Components | Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 1) | doi.org/10.13182/FST11-A12355
Articles are hosted by Taylor and Francis Online.
This paper considers a combination of ARIES modular finger concept and a design with helium channels in a thick plate. Multiple-jet cooling at a back side of a plasma facing surface is employed in this concept. The plasma facing surface is subdivided into a large number of small hexagonal modules, similar to the EU finger concept. Such a modularization reduces thermal stresses and allows therefore maximum surface heat flux of 10 MW/m2 at least. A solution has been found allowing brazing the fingers made of a W-alloy directly into the W-plate, avoiding in this way the connection of dissimilar materials with largely different thermal expansion coefficients. For an increase in reliability, double walled thimbles are used in the most critical region, providing an additional barrier against leaks of the high pressure helium. Thermal-mechanical calculations confirmed the expected high performance of the concept with the maximum allowable heat flux > 10 MW/m2 with all the components staying in the elastic regime. Extensive analyses of non-linear materials responses, such as plastic deformation (yield) are performed to allow the materials to be pushed beyond 3Sm in order to determine the maximum allowable heat flux can be.