EPRI (Electric Power Research Institute)-PRESS isotopics benchmarking with and ENDF/B-V library

Conference · Wed Nov 01 04:00:00 EST 1989 · Transactions of the American Nuclear Society; (United States)

OSTI ID:5376192

Mosteller, R D ^[1]

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1. S. Levy, Campbell, CA (USA)

Modern pressurized water reactor (PWR) fuel assemblies are designed to reach much higher discharge burnups than were those in the past. Consequently, it is imperative that the methods employed for in-core fuel management continue to produce accurate results even at such high burnups. One of the most demanding applications of code packages in this regard is the accurate prediction of isotopics. In version 2 of the Electric Power Research Institute's (EPRI's) Advanced Recycle Methodology Program (ARMP-02), PWR lattice physics analysis is performed with the EPRI-PRESS code package. EPRI-Press previously had been benchmarked quite successfully against a variety of PWR isotopics measurements. However, comparisons with high-burnup isotopics measurements from pins removed from a lead test assembly (LTA) in Calvert Cliffs Unit 1 after three cycles of irradiation had shown some significant differences for the higher plutonium isotopes. This paper presents the results obtained from EPRI-PRESS isotopics calculations with the ENDF/B-V library for one of the fuel pins from the Calvert Cliffs LTA. This research was sponsored by EPRI.

• OSTI ID: 5376192
• Report Number(s): CONF-891103--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 60
• Country of Publication: United States
• Language: English

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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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ACCURACY
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BURNUP
COMPUTER CODES
COMPUTERIZED SIMULATION
CROSS SECTIONS
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FUEL ASSEMBLIES
FUEL MANAGEMENT
GROUP THEORY
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