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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
T. N. Ake, R. G. McAndrew, D. D. Whitney
Nuclear Technology | Volume 55 | Number 3 | December 1981 | Pages 583-586
Technical Paper | Fuel Cycle | doi.org/10.13182/NT81-A32802
Articles are hosted by Taylor and Francis Online.
The Babcock and Wilcox Company (B&W) normally uses part-length axial power shaping rods (APSRs) for core axial power distribution control The development and implementation by B&W and the Sacramento Municipal Utility District of a procedure for extending cycle length by removing the APSRs at the end of cycle 3 of Rancho Seco Nuclear Generating Station is explained. Increased core reactivity and hence greater cycle length were successfully achieved. Neither the reactor protection system nor normal operating limits were violated during the APSR withdrawal procedure. Further, pellet-cladding interaction was avoided, and primary coolant feedand bleed requirements were within the capacity of the plant evaporators. During the 22 h at less than full power, the average capacity factor was 81.1%, a reasonable tradeoff in light of the extension of cycle 3 by 10 effective full-power days (EFPDs). Successive use of this technique over following cycles yields average gains of 5 EFPDs per cycle.