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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Latest News
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.
Ronald D. Boyd
Fusion Science and Technology | Volume 67 | Number 4 | May 2015 | Pages 754-761
Technical Paper | doi.org/10.13182/FST14-814
Articles are hosted by Taylor and Francis Online.
The hypervapotron (HV) has been demonstrated to be a superior thermal management (TM) and high heat flux removal (HHFR) technique for fusion reactor plasma-facing component applications involving a single-side absorbed heat flux (up to between 20 and 30 MW/m2). However, the conjugate heat transfer HV flow channel (HFC) only can be optimized completely when the related HHFR controlling parameters have been identified. In an earlier work, Part I of the present effort, we identified three high heat flux-side controlling TM and HHFR dimensionless parameters and a characteristic temperature difference. In the present work, six HV wall conjugate heat transfer dimensionless primary controlling parameters and five secondary controlling parameters have been identified. The controlling parameters include the effects of (1) most geometric specifications of the array of fins; (2) variations in the HV wall thermal conductivity and heat transfer coefficient; (3) effective Biot numbers characterizing effects that include the fin array, a typical fin example, and the side walls; (4) the HFC unobstructive portion flow aspect ratio, and (5) the HFC wall aspect ratio.