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Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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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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?
Zhi-Gang Zhang, Ken-Ichiro Sugiyama
Nuclear Technology | Volume 175 | Number 3 | September 2011 | Pages 619-627
Technical Paper | NURETH-13 Special / Thermal Hydraulics | doi.org/10.13182/NT11-A12510
Articles are hosted by Taylor and Francis Online.
To characterize the relationship between hydrodynamic and thermal effects on fragmentation of molten core structural material, which mainly includes cladding material, with the interaction of the coolant of sodium under a wide range of thermal and hydrodynamic conditions, this paper focuses on a series of fragmentation characteristics of a single molten Type 304 stainless steel droplet (5 g) with an ambient Weber number Wea from 199 to 586 and superheat conditions from 23 to 276°C, which penetrates into a sodium pool at an initial temperature from 301 to 313°C.In our experiments, fine fragmentations of single molten stainless steel droplets with high Wea were clearly observed, even under a supercooled condition that is well below its melting point of 1427°C. The dimensionless mass median diameters (Dm/D0) of molten droplets with high Wea are less than molten droplets with low Wea under the same thermal condition. When Wea is approximately >250, the hydrodynamic effect on fragmentation becomes predominant over the thermal effect under a relatively low superheat condition. For a higher Wea range, the comparisons indicate that the fragment sizes of the molten stainless steel droplet and jet have similar distributions to those of molten metallic fuel jets even with different thermophysical properties and a thousandfold mass difference, which implies the possibility that the fragment size characteristics of molten metal jets could be evaluated by the interaction of a single droplet with the sodium coolant without the consideration of dropping modes and mass.