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Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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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.
F. W. Staub, N. Zuber
Nuclear Science and Engineering | Volume 30 | Number 2 | November 1967 | Pages 296-303
Technical Paper | doi.org/10.13182/NSE67-A17339
Articles are hosted by Taylor and Francis Online.
The void propagation equation is applied to predict the void response to both flow and power oscillations in a boiling liquid in forced flow through a duct with axially nonuniform power input. The analysis and the solution are presented in dimensionless form so they may be applied to various systems of practical interest. For the range of parameters examined in this paper, neither the steady-state void fraction nor the transient void response are significantly affected by the shape of the axial power-input distribution to the fluid. The predicted void response to combined flow and power-input oscillations to the fluid indicates that: 1) The void propagation velocity is about the same whether the power alone, flow alone, or power and flow together are oscillated, provided all other parameters are unchanged. 2) Flow oscillations in phase with power oscillations reduce the amplitude of the void oscillations below the values that would be present with either the same power or flow oscillations acting alone. 3) Flow oscillations 180° out of phase with power oscillations result in void oscillations whose amplitudes are roughly equal to the sum of the void amplitudes that would exist with the respective power and flow oscillations acting alone.