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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.
Meeting Spotlight
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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Latest News
Commercial nuclear innovation "new space" age
In early 2006, a start-up company launched a small rocket from a tiny island in the Pacific. It exploded, showering the island with debris. A year later, a second launch attempt sent a rocket to space but failed to make orbit, burning up in the atmosphere. Another year brought a third attempt—and a third failure. The following month, in September 2008, the company used the last of its funds to launch a fourth rocket. It reached orbit, making history as the first privately funded liquid-fueled rocket to do so.
G. K. Pandey, I. Banerjee, G. Padmakumar, C. Anandababu, K. K. Rajan, G. Vaidyanathan, P. Kalyanasundaram, S. C. Chetal, Baldev Raj
Nuclear Technology | Volume 175 | Number 3 | September 2011 | Pages 692-699
Technical Note | NURETH-13 Special / Fission Reactors | doi.org/10.13182/NT11-A12516
Articles are hosted by Taylor and Francis Online.
A sodium-cooled, 500-MW(electric) prototype fast breeder reactor (PFBR) is under construction in Kalpakkam, India. The PFBR core houses various subassemblies that are supported vertically inside the core by the sleeves provided in the grid plate. A small radial gap exists between the grid plate sleeve and the foot to facilitate easy handling of subassemblies. It is natural that there will be some leakage flow through this radial gap into the hot and cold pools of the PFBR. To minimize this leakage flow, top and bottom labyrinths are provided on the foot of the subassemblies. The total leak flow rate permitted from the top labyrinth is 195 kg/s, whereas the leak flow rate allowed through the bottom labyrinth is 436 kg/s. Labyrinth-type sealing devices have been developed by carrying out experimental studies. Based on various parametric studies, the labyrinth geometry was optimized. It was found that apart from the clearance between the foot and sleeve, important parameters affecting pressure drop are groove profile, groove pitch, groove-depth-to-width ratio, etc. Taking into account the outcome of these studies, helical square grooved labyrinths have been designed and manufactured for PFBR. This paper presents the details of the similarity criteria followed, experimental methodology applied, and results obtained from the experiments along with their transposability to reactor conditions.