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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
C. R. Bell, N. P. Oberle, W. Rohsenow, N. Todreas, C. Tso
Nuclear Science and Engineering | Volume 53 | Number 4 | April 1974 | Pages 458-465
Technical Paper | doi.org/10.13182/NSE74-A23376
Articles are hosted by Taylor and Francis Online.
A series of studies was made of bubble nucleation by fission fragments and fast neutrons. The experimental work was conducted by a liquid suspension method in a pressure chamber designed to provide for visual determination of the onset of nucleation. The minimum superheat necessary for nucleation of visible bubbles was measured in water and propylene glycol. An analytic prediction method for the superheat threshold is presented, utilizing the “thermal spike” theory of Seitz and Rayleigh’s criteria for instability of a vapor jet in liquid. This method predicts that the important parameter a, equal to the ratio of the track length in which net energy must be deposited to the critical bubble radius, should equal 6.07. By this analysis, this value is independent of the type of thermal-spike-producing radiation, the type of fluid, and the system condition. The experimental data from this investigation and all other published data were examined to determine the applicable a values. This examination did not result in identification of a values consistent with the proposed prediction. Reasons for the deviation of the data from predictions are discussed, but the basis of the deviations cannot be resolved.