Published March 1989 | Version v1
Report Metadata-only

Evaluation of PWR transients with highest pressure increase for the ATWS case 'loss of main feedwater supply'

Creators

Description

The entire spectrum of transients analyzed during commissioning has been evaluated with respect to the potential of exceeding the primary system design pressure. The systematic evaluation indicates that during the ATWS case 'loss of main feedwater supply' the highest primary system pressure is obtained. This case has been analyzed in detail, and it has been indicated which degree of detail is necessary in the simulation. In addition, sensitivity calculations have been performed to find such parameters which influence the value of the maximum system pressure. (orig.)

Availability note (English)

Available from GRM Werbeberatung - Werbemittlung - PR, Eggenstein-Leopoldshafen, (Germany, F.R.).

Abstract (German)

Aus dem Spektrum der im Genehmigungsverfahren zu untersuchenden Transienten in Druckwasserreaktoren wurden solche naeher betrachtet, die das Potential haben, zu einer Ueberschreitung des Auslegungsdruckes im Primaersystem zu fuehren. Bei einer systematischen Eingrenzung der Faelle ergab sich, dass der ATWS-Fall 'Ausfall der Hauptspeisewasserversorgung' zu den hoechsten Druecken fuehrt. Dieser Fall wurde ausfuehrlich analysiert. Besonders wurde herausgestellt, welcher Detaillierungsgrad der Simulation erforderlich ist, und welche Parameter den Maximalwert des Primaerdrucks entscheidend beeinflussen. (orig.)

Additional details

Additional titles

Original title (German)
Beurteilung von DWR-Transienten mit starkem Druckanstieg anhand des ATWS-Falles 'Ausfall der Hauptspeisewasserversorgung'

Publishing Information

Imprint Pagination
65 p.
Series
Schriftenreihe Reaktorsicherheit und Strahlenschutz.;Ergebnisberichte, Untersuchungen, Studien, Gutachten.
Report number
BMU--1989-230

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
21036833
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ATWS; FAILURES; FEEDWATER; PRIMARY COOLANT CIRCUITS; PWR TYPE REACTORS; REACTOR SAFETY; TRANSIENTS; VERY HIGH PRESSURE
Descriptors DEC
ACCIDENTS; COOLING SYSTEMS; DESIGN BASIS ACCIDENTS; ENRICHED URANIUM REACTORS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; POLAR SOLVENTS; POWER REACTORS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; SAFETY; SOLVENTS; THERMAL REACTORS; WATER; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Contract/Grant/Project number
Contract BMU SR 271/3
Secondary number(s)
GRS-A--1532.