Fast Reactors and Accelerator Driven Systems Knowledge Base

IAEA-TECDOC--731: Evaluation of benchmark calculations on a fast power reactor core with near zero sodium void effect.

International Atomic Energy Agency, Vienna (Austria); Commission of the European Communities, Brussels (Belgium)

Abstract

This document investigates whether it is possible to reduce the void reactivity coefficient without affecting any other reactivity coefficient. The aim was to investigate the capability of reducing to nearly zero the sodium voiding feedback reactivity of an axially heterogeneous fast breeder reactor when a sodium plenum is introduced above the core instead of the upper axial blanket. In addition to the sodium void reactivity calculation, it was decided to investigate a series of core neutronic performance characteristics, such as breeder ratios, burnup swing, peaked linear power, power peaking factor, regional power fractions, and control rod worths. The calculation model of this BN-800 core was distributed to all participants by the IAEA. This document is based on papers presented at the meeting by participants from India, Japan, Germany, the Russian Federation, the United Kingdom and the United States of America.

view the full text of this report (format: PDF, size= 1907kB, 43 pages)

see also:

Chapters

index
(format: PDF, size= 22kB, 1 page)
background and objectives of the benschmark
(format: PDF, size= 125kB, 2 pages)
participants
(format: PDF, size= 25kB, 1 page)
description of the benchmark
(format: PDF, size= 438kB, 9 pages)
review of methods of calculations
(format: PDF, size= 106kB, 2 pages)
results
(format: PDF, size= 772kB, 17 pages)
summary and conclusions
(format: PDF, size= 118kB, 2 pages)
possible items for a benchmark continuation
(format: PDF, size= 57kB, 1 page)
Reference:
Evaluation of benchmark calculations on a fast power reactor core with near zero sodium void effect. Final report of an international benchmark programme, 1992-1993
International Atomic Energy Agency, Vienna (Austria); Commission of the European Communities, Brussels (Belgium)
IAEA-TECDOC--731