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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.
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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!
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Latest News
Virginia utility considers SMRs
Dominion Energy Virginia has issued a request for proposals from leading nuclear companies to study the feasibility of putting a small modular reactor at its North Anna nuclear power plant.
While the utility says it is not a commitment to build an SMR at the site, the RFP is “an important first step in evaluating the technology and the North Anna site to support Dominion Energy customers’ future energy needs consistent with the company’s most recent Integrated Resource Plan.”
Kenneth J. Doran, Ronald E. Engel, Randall S. May
Nuclear Technology | Volume 93 | Number 1 | January 1991 | Pages 16-21
Technical Paper | Nuclear Reactor Safety | doi.org/10.13182/NT91-A34514
Articles are hosted by Taylor and Francis Online.
Complex valve and instrument networks are frequently found in nuclear power plants; the complexity of such networks is often due to built-in, safety-related redundancy. When developing RETRAN input to model a redundant network, it is generally assumed that the performance of such a network can be accurately represented by the performance characteristics of its individual components. This approach, however, can introduce a substantial amount of conservatism into the RETRAN calculations because a redundant network tends to outperform its components. To help utility engineers evaluate the performance of redundant networks, the Electric Power Research Institute has sponsored the development of the PLAnt NETwork Simulation (PLANETS) computer program. The PLANETS code can be used to develop both conservative and best-estimate network characteristics for RETRAN input. Analyses have shown that the use of network inputs can significantly reduce calculated event consequences as well as provide added safety or operating margin.