ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Oklo completes end-to-end demonstration of advanced fuel recycling
Oklo Inc. has announced that it has completed the first end-to-end demonstration of its advanced fuel recycling process as part of an ongoing $5 million project in collaboration with Argonne and Idaho National Laboratories. Oklo’s goal: scaling up its fuel recycling capabilities to deploy a commercial-scale recycling facility that would increase advanced reactor fuel supplies and enhance fuel cost effectiveness for its planned sodium fast reactors.
Shih-Jen Wang, Chun-Sheng Chien, Suh-Chyn Jeng
Nuclear Technology | Volume 105 | Number 3 | March 1994 | Pages 447-456
Technical Paper | Radiation Protection | doi.org/10.13182/NT94-A34943
Articles are hosted by Taylor and Francis Online.
A plant analyzer was developed for the Kuosheng power station, based on the AD-100 peripheral processor system. To analyze a transient from partial power conditions, the initial steady-state conditions must be generated in advance. A self-initialization algorithm for generating the initial partial power conditions has been developed. The initialization of the rated power conditions is performed first. The self-initialization algorithm then simultaneously adjusts important plant variables, such as the reactor power, dome pressure, downcomer level, feedwater temperature, and core flow, to the desired partial power conditions from the rated conditions with the aid of existing plant control systems and four extra control loops. This algorithm was developed and encoded in the Kuosheng plant analyzer. The initialization for a recirculation pump trip test at 68% of rated power demonstrates the success of this algorithm. The initial conditions generated can be saved and used for transient analysis. Tedious and time-consuming trial-and-error initialization procedures are eliminated. This methodology improves the accuracy and consistency of transient calculations for partial power conditions.