Published November 1981
| Version v1
Report
Restricted
Effects of different rod spacers (helical types) on coolant crossmixing
Creators
- 1. Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Obninsk. Fiziko-Ehnergeticheskij Inst.
Description
The results of investigations (electromagnetic measuring method) on coolant cross mixing in rod clusters with spiral wire spacers with different winding directions, with alternating unfinned and finned rods (case 'fin to rod'), as well as in rod clusters with much space between the rods, (case 'fin to fin') are reported. The local fluid dynamics parameters (distribution of the transversal and longitudinal velocity component) that define the physical processes of the coolant exchange in the rod clusters with helical spacers are explained. The investigation results for different helical spacer types are compared with each other. (orig.)
Availability note (English)
MF available from INIS under the Report Number; Also published in FEI--978, Obninsk, 1980.Abstract (German)
Es werden die Untersuchungsergebnisse (elektromagnetische Messverfahren) zur Kuehlmittelquervermischung in Stabbuendeln mit Wendeldraht-Abstandshaltern verschiedener Wicklungsrichtungen, mit abwechselnd glatten und berippten Staeben (Fall 'Rippe auf Stab') sowie in Stabbuendeln mit grossen Stababstandsverhaeltnissen (Fall 'Rippe auf Rippe') berichtet. Eroertert werden die lokalen fluiddynamischen Parameter (Verteilungen der transversalen und longitudinalen Geschwindigkeitskomponente), die die physikalischen Vorgaenge des Kuehlmittelaustausches in den Stabbuendeln mit wendelfoermigen Abstandshaltern bestimmen. Die Untersuchungsergebnisse fuer verschiedene Typen wendelfoermiger Abstandshalter werden einander gegenuebergestellt. (orig.)
Files
Restricted
The record is publicly accessible, but files are restricted to users with access.
Additional details
Additional titles
- Original title (German)
- Einfluss verschiedener Stababstandshalter (wendelfoermige Typen) auf die Kuehlmittelquervermischung
Publishing Information
- Imprint Pagination
- 16 p.
- Report number
- KFK-tr--672
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 13692640
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- FINS; FLUID FLOW; FUEL ELEMENT CLUSTERS; HELICAL CONFIGURATION; HOT SPOTS; MEASURING METHODS; REACTOR CORES; REYNOLDS NUMBER; SPACERS; TURBULENCE; VELOCITY
- Descriptors DEC
- CONFIGURATION; FUEL ASSEMBLIES; REACTOR COMPONENTS
Optional Information
- Notes
- Translated from Russian: Vliyanie nekotorykh sposobov distantsionirovaniya sterzhnei (vintovoe orebrenie) na mezhkanal'noe peremeshivanie.