Published December 1991 | Version v1
Miscellaneous Metadata-only

Scoping calculations within the framework of the neutron physics PWR design procedure SAV90

Creators

Description

Scoping calculations within the framework of the neutron physics PWR design procedure SAV90. Reliable forecasts of the performance characteristics of pressurized water reactors over several years are an essential precondition for preoptimizing fuelling plans and reducing fuel costs. If a coupled system of three-dimensional partial differential equations (two-group-diffusion equations) is used to exactly describe the processes in the reactor core, a CYBER-990 computer needs about one hour for one burnup cycle. A simplified two-dimensional scoping calculation model has been developed which, within a short time and at low expense, supplies reliable propositions for judging a fuelling plan. (orig./DG)

Availability note (English)

Available from FIZ Karlsruhe.

Abstract (German)

Verlaessliche Vorhersagen des Betriebsverhaltens von Druckwasserreaktoren ueber mehrere Jahre sind eine wesentliche Voraussetzung, um Beladeplaene vorzuoptimieren und Brennstoffkosten zu senken. Benutzt man zur exakten Beschreibung der Vorgaenge im Reaktorkern ein gekoppeltes System dreidimensionaler partieller Differentialgleichungen (2-Gruppen-Diffusionsgleichungen), so benoetigt eine CYBER-990-Rechenanlage fuer einen Abbrandzyklus etwa eine Stunde. Es wurde ein vereinfachtes zweidimensionales Scoping-Rechenmodell entwickelt, das in kurzer Zeit und mit geringem Aufwand zuverlaessige Aussagen zur Beurteilung eines Beladeplans liefert. (orig./DG)

Additional details

Additional titles

Original title (German)
Scoping-Rechnungen im Rahmen des neutronenphysikalischen DWR-Auslegungsverfahrens SAV90

Publishing Information

Imprint Title
Fuel element report
Imprint Pagination
47 p.
Journal Issue
no. 2
Series
Brennelement-Report.
Journal Page Range
p. 38-40.

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
24030210
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BURNUP; COMPUTER CALCULATIONS; NEUTRON TRANSPORT THEORY; POWER DISTRIBUTION; PWR TYPE REACTORS; REACTOR CORES; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
DISTRIBUTION; ENRICHED URANIUM REACTORS; POWER REACTORS; REACTOR COMPONENTS; REACTORS; SPATIAL DISTRIBUTION; THERMAL REACTORS; TRANSPORT THEORY; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
Imprint:Brennelement-Report.