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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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.
V. E. Schrock, L. M. Grossman
Nuclear Science and Engineering | Volume 12 | Number 4 | April 1962 | Pages 474-481
Technical Paper | doi.org/10.13182/NSE62-A26094
Articles are hosted by Taylor and Francis Online.
Local heat transfer coefficients and pressure gradients have been measured for bulk boiling of water in forced flow (vertically upward) in round tubes with internal diameters ranging from 0.1162 to 0.4317 in., lengths of 15 to 40 in., heat fluxes of 6 × 104 to 1.45 × 106 Btu/hr ft2, mass fluxes of 49 to 911 lb/sec ft2, exit qualities of 5 to 57%, and at pressures ranging from 42 to 505 psia. The local heat transfer coefficients expressed in the form of the Nusselt number have been correlated in terms of Reynolds and Prandtl numbers and two dimensionless groups characterizing forced convection vaporization, the Lockhart-Martinelli parameter Xtt, and the “boiling number,” Bo = (q/A)/Ghfg. For large values of the latter, nucleate boiling predominates and the dependence of the heat transfer on Xtt is small. Conversely, at the small values of Bo, convective flow effects are dominant, and there is a strong dependence on Xtt.