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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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IAEA again raises global nuclear power projections
Noting recent momentum behind nuclear power, the International Atomic Energy Agency has revised up its projections for the expansion of nuclear power, estimating that global nuclear operational capacity will more than double by 2050—reaching 2.6 times the 2024 level—with small modular reactors expected to play a pivotal role in this high-case scenario.
IAEA director general Rafael Mariano Grossi announced the new projections, contained in the annual report Energy, Electricity, and Nuclear Power Estimates for the Period up to 2050 at the 69th IAEA General Conference in Vienna.
In the report’s high-case scenario, nuclear electrical generating capacity is projected to increase to from 377 GW at the end of 2024 to 992 GW by 2050. In a low-case scenario, capacity rises 50 percent, compared with 2024, to 561 GW. SMRs are projected to account for 24 percent of the new capacity added in the high case and for 5 percent in the low case.
N. Tsuzuki, M. Chaki (The Inst of Applied Energy), D. T. Nguyen, Y. A. Hassan, K. Vierow Kirkland (Texas A&M)
Proceedings | Advances in Thermal Hydraulics 2018 | Orlando, FL, November 11-15, 2018 | Pages 160-169
Flow behavior of a jet issuing from a steam inlet nozzle of a Terry turbine, which is employed in the RCIC system of BWRs, was observed using PIV techniques. The nozzle has a complicated shape and sufficient data do not exist to predict flow phenomena including exhaust jet flow behavior. Single-phase air jet flow was applied for this experiment. The jet flows 10 mm from the nozzle then impinges on a flat wall which simulates the wall segment between buckets on a turbine wheel. The nozzle outlet pressure was set as 30 psi and 40 psi. Flow behavior and collision behavior was different between the two cases, which implies nozzle outlet pressure of Terry turbine also affects the flow behavior in the turbine. The flow behavior is very important to know how Terry turbine works in BDBE condition or to estimate actual life time of the RCIC system itself. This is the first trial to clarify the behavior and further work will be done in the future.
