ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
Meeting Spotlight
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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Latest News
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.
M. Marseguerra, E. Zio, F. Cadini
Nuclear Science and Engineering | Volume 155 | Number 3 | March 2007 | Pages 386-394
Technical Paper | Mathematics and Computation, Supercomputing, Reactor Physics and Nuclear and Biological Applications | doi.org/10.13182/NSE07-A2671
Articles are hosted by Taylor and Francis Online.
Inefficient control of the water level in a steam generator of a nuclear power plant is responsible for frequent unscheduled reactor trips. This problem is particularly critical at low power, when the steam generator exhibits the "swell and shrink" phenomenon and flow rate measurements are highly unreliable. The design of a proper controller capable of avoiding expensive shutdowns is eagerly sought for increasing the availability of the plant. In this paper, we present an extension of an adaptive, stable, fuzzy controller, whose design parameters are optimized via a genetic algorithm. Computer simulations confirm that the devised controller bears good performances in terms of small oscillations and fast settling time even in the presence of steam flow disturbances.