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Title: Catawba 1 cycle 1 HZP reactor physics model investigation

Abstract

Following the startup of Duke Power Company's Catawba nuclear station, large disagreements were observed in the hot zero-power (HZP) reactor physics model when compared to the measured data. Errors of 15 to 20% were seen in the measured versus predicted power distribution in the form of an in-out tilt. This led to control rod worth errors of approx. 20%. Comparisons of Duke predictions with the vendor at hot full power (HFP) and equilibrium xenon showed good agreement. These predictions were substantiated when Catawba reached these conditions. The reactor physics methodology used in the development of the Catawba 1 cycle 1 (C1C1) model had been proven with the startup and operation of both McGuire nuclear station units. This paper addresses possible causes as to why the C1C1 HZP model failed when the C1C1 HFP model and the McGuire HZP and HFP models gave good results.

Authors:
Publication Date:
Research Org.:
Duke Power Co., Charlotte, NC
OSTI Identifier:
6498443
Report Number(s):
CONF-860610-
Journal ID: CODEN: TANSA; TRN: 87-021266
Resource Type:
Conference
Journal Name:
Trans. Am. Nucl. Soc.; (United States)
Additional Journal Information:
Journal Volume: 52; Conference: American Nuclear Society annual meeting, Reno, NV, USA, 15 Jun 1986
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; CATAWBA-1 REACTOR; REACTOR PHYSICS; MC GUIRE-1 REACTOR; MC GUIRE-2 REACTOR; COMPUTERIZED SIMULATION; BORON; C CODES; CONTROL ROD WORTHS; ERRORS; FUEL ASSEMBLIES; MATHEMATICAL MODELS; POWER DENSITY; QUANTITY RATIO; REACTOR START-UP; SLIGHTLY ENRICHED URANIUM; TEMPERATURE DEPENDENCE; ACTINIDES; COMPUTER CODES; ELEMENTS; ENRICHED URANIUM; ENRICHED URANIUM REACTORS; ISOTOPE ENRICHED MATERIALS; MATERIALS; METALS; OPERATION; PHYSICS; POWER REACTORS; PWR TYPE REACTORS; REACTOR OPERATION; REACTORS; SEMIMETALS; SIMULATION; START-UP; URANIUM; WATER COOLED REACTORS; WATER MODERATED REACTORS; 210200* - Power Reactors, Nonbreeding, Light-Water Moderated, Nonboiling Water Cooled

Citation Formats

Waldrop, K P. Catawba 1 cycle 1 HZP reactor physics model investigation. United States: N. p., 1986. Web.
Waldrop, K P. Catawba 1 cycle 1 HZP reactor physics model investigation. United States.
Waldrop, K P. Wed . "Catawba 1 cycle 1 HZP reactor physics model investigation". United States.
@article{osti_6498443,
title = {Catawba 1 cycle 1 HZP reactor physics model investigation},
author = {Waldrop, K P},
abstractNote = {Following the startup of Duke Power Company's Catawba nuclear station, large disagreements were observed in the hot zero-power (HZP) reactor physics model when compared to the measured data. Errors of 15 to 20% were seen in the measured versus predicted power distribution in the form of an in-out tilt. This led to control rod worth errors of approx. 20%. Comparisons of Duke predictions with the vendor at hot full power (HFP) and equilibrium xenon showed good agreement. These predictions were substantiated when Catawba reached these conditions. The reactor physics methodology used in the development of the Catawba 1 cycle 1 (C1C1) model had been proven with the startup and operation of both McGuire nuclear station units. This paper addresses possible causes as to why the C1C1 HZP model failed when the C1C1 HFP model and the McGuire HZP and HFP models gave good results.},
doi = {},
journal = {Trans. Am. Nucl. Soc.; (United States)},
number = ,
volume = 52,
place = {United States},
year = {1986},
month = {1}
}

Conference:
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