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Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
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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.
O. Lupas, D. Beraha
Nuclear Science and Engineering | Volume 104 | Number 1 | January 1990 | Pages 10-25
Technical Paper | doi.org/10.13182/NSE90-A23697
Articles are hosted by Taylor and Francis Online.
A three-dimensional, coarse-mesh, nonlinear, robust core model adapted to the specific requirements of a digital power distribution control system for boiling water reactors (B WRs) is presented. Optimal core power control can be achieved with a coarse power distribution description if the simulation is accurate enough. A two-stage concept is used to make the model both accurate and fast. A unique computation with an exact but slow conventional simulator provides a detailed physical basis for a reference core state. This input data basis, homogenized to larger spatial zones, enables a fast, one energy group simulator with xenon dynamics to compute transients covering the entire range of states that occur during normal operation. Validation tests have shown a large autonomy and good simulation qualities of the core model for several types of transients of interest for normal BWR operation. Its accuracy combined with fast execution, numerical stability, and ease in handling make the core model suitable for use in on-line core surveillance and control systems with real-time predictive capabilities. These same features also qualify it as a fast, quasi-static simulator for prediction of core behavior beyond the scope of digital control.