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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Reflections on NOW
Hash Hasemianpresident@ans.org
Last month, I talked about my goal of strengthening ANS’s voice, in part by attending three conferences. I have now checked the first event off that list: the Nuclear Opportunities Workshop.
This year, NOW took another step in outgrowing its “workshop” moniker and transitioning to a full-fledged regional conference and expo. What started only a few years ago as a small gathering in Oak Ridge, Tenn., with roughly 50 attendees has skyrocketed to an event with 1,100 people in attendance in Knoxville.
NOW’s popularity reflected how busy the roughly 350 nuclear companies in Tennessee have been in recent years. There is significant work going on surrounding Gen IV reactor development and deployment, advancements in new nuclear fuels, and defense-related builds like the Uranium Processing Facility.
Dean Dobranich, Mohamed S. El-Genk
Nuclear Technology | Volume 94 | Number 3 | June 1991 | Pages 372-382
Technical Paper | Nuclear Fuel Cycle | doi.org/10.13182/NT91-A15815
Articles are hosted by Taylor and Francis Online.
Particle-bed reactors have been proposed to provide high-temperature, low-mass power sources for space-based operation. A computer program was prepared to simulate the thermal and mechanical response of a multilayered fuel particle operating in such a reactor. Issues of concern include temperature gradient and interference thermal stresses, along with the plastic and creep deformations associated with the high temperature of operation. The results of the computer simulations indicate that the interference thermal stress is much larger than the temperature gradient stress and the external pressure stress, and that permanent strain formation cannot be avoided for particles operating at temperatures greater than ∼2300 K. The results also reveal some interesting aspects unique to multilayered fuel particle performance. Two such aspects include (a) the interaction between interference thermal stress and high-temperature creep and (b) the effect of power ramp time on the formation of time-dependent plastic strains.