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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
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.
R. Brevi, M. Cumo, A. Palmieri, D. Pitimada
Nuclear Science and Engineering | Volume 46 | Number 1 | October 1971 | Pages 131-139
Technical Paper | doi.org/10.13182/NSE71-A22340
Articles are hosted by Taylor and Francis Online.
Very promising results with the insertion of twisted tapes in tubular heat exchangers have suggested performance of experiments under more interesting conditions, i.e., at higher pressures (50 atm) with exchangers of larger dimensions (200 cm in length and 1-cm i.d.). The results show a great increase in the forced-convection heat transfer coefficient ranging from 100 to 150% at specific mass flow rates of 70 to 100 g/(cm2 sec). The law of dependence of the Nusselt number on the Reynolds number varies with an exponent unity instead of 0.8. The burnout thermal power increases by 30 to 50%; correspondingly, the burnout qualities increase from 60 to 90%, thus drastically reducing the post-burnout length. Furthermore, within this length there are no characteristic, dangerous temperature oscillations. The present results, together with others cited in the referenced literature, constitute a basis for improvement of the subcritical once-through heat exchangers for pressurized-water and liquid metal fast breeder reactor power plants.