Bounding burnout risk power limits for the K-14 cycle

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This document discusses burnout risk (BOR) power limits which are designed to protect the reactor from a significant release of fission products, due to critical heat flux (CHF) burnout of fuel and target assemblies. At expected operating power levels for the reactor restart, approximately 50% of historical full power, the risk of CHF and attendant burnout is negligible. Flow instability power limits will restrict reactor operation, and flow instability will always occur before CHF. BOR power limits must nevertheless be calculated because they are required by the reactor control computer, (2) Bounding BOR limits have been calculated for the K-14 ... continued below

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Pages: (21 p)

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Shadday, M.A. Jr. October 1, 1990.

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Description

This document discusses burnout risk (BOR) power limits which are designed to protect the reactor from a significant release of fission products, due to critical heat flux (CHF) burnout of fuel and target assemblies. At expected operating power levels for the reactor restart, approximately 50% of historical full power, the risk of CHF and attendant burnout is negligible. Flow instability power limits will restrict reactor operation, and flow instability will always occur before CHF. BOR power limits must nevertheless be calculated because they are required by the reactor control computer, (2) Bounding BOR limits have been calculated for the K-14 cycle, to fulfill this requirement, and they are presented in this document. Two sets of BOR limits have been calculated: one applicable for the first subcycle, zero to 30% fuel burnup, and the other for the second subcycle, 30% to 55% fuel burnup.

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Pages: (21 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92015062
  • Report No.: WSRC-TR-90-394
  • Grant Number: AC09-89SR18035
  • DOI: 10.2172/5141823 | External Link
  • Office of Scientific & Technical Information Report Number: 5141823
  • Archival Resource Key: ark:/67531/metadc1052810

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  • October 1, 1990

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 1, 2018, 7:11 p.m.

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Shadday, M.A. Jr. Bounding burnout risk power limits for the K-14 cycle, report, October 1, 1990; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc1052810/: accessed August 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.