You need JavaScript to view this

High pressure experimental water loop; Cellule experimentale a eau sous pression

Abstract

A high pressure experimental water loop has been made for studying the detection and evolution of cladding failure in a pressurized reactor. The loop has been designed for a maximum temperature of 360 deg. C, a maximum of 160 kg/cm{sup 2} and flow rates up to 5 m{sup 3}/h. The entire loop consists of several parts: a main circuit with a canned rotor circulation pump, steam pressurizer, heating tubes, two hydro-cyclones (one de-gasser and one decanter) and one tubular heat exchanger; a continuous purification loop, connected in parallel, comprising pressure reducing valves and resin pots which also allow studies of the stability of resins under pressure, temperature and radiation; following the gas separator is a gas loop for studying the recombination of the radiolytic gases in the steam phase. The preceding circuits, as well as others, return to a low pressure storage circuit. The cold water of the low pressure storage flask is continuously reintroduced into the high pressure main circuit by means of a return pump at a maximum head of 160 kg /cm{sup 2}, and adjusted to the pressurizer level. This loop is also a testing bench for the tight high pressure apparatus. The circulating pump and the  More>>
Authors:
Grenon, M; [1]  Terny, M [2] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
  2. Societe Grenobloise d'Etudes et d'Applications Hydrauliques, 38 (France)
Publication Date:
Jul 01, 1958
Product Type:
Technical Report
Report Number:
CEA-R-957
Subject:
42 ENGINEERING; AIRTIGHTNESS; CLADDING; COOLANTS; DESTRUCTIVE TESTING; FLANGES; FUEL ELEMENT FAILURE; HEAT TRANSFER; IN PILE LOOPS; LEAK DETECTORS; LEAK TESTING; PRESSURE RANGE MEGA PA 10-100; PRESSURE VESSELS; PRESSURIZATION; PWR TYPE REACTORS; TEMPERATURE RANGE 0400-1000 K; THERMAL CYCLING; URANIUM BASE ALLOYS; WATER; ZIRCONIUM ALLOYS
OSTI ID:
20901008
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R0957063231
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
17 pages
Announcement Date:
Aug 30, 2007

Citation Formats

Grenon, M, and Terny, M. High pressure experimental water loop; Cellule experimentale a eau sous pression. France: N. p., 1958. Web.
Grenon, M, & Terny, M. High pressure experimental water loop; Cellule experimentale a eau sous pression. France.
Grenon, M, and Terny, M. 1958. "High pressure experimental water loop; Cellule experimentale a eau sous pression." France.
@misc{etde_20901008,
title = {High pressure experimental water loop; Cellule experimentale a eau sous pression}
author = {Grenon, M, and Terny, M}
abstractNote = {A high pressure experimental water loop has been made for studying the detection and evolution of cladding failure in a pressurized reactor. The loop has been designed for a maximum temperature of 360 deg. C, a maximum of 160 kg/cm{sup 2} and flow rates up to 5 m{sup 3}/h. The entire loop consists of several parts: a main circuit with a canned rotor circulation pump, steam pressurizer, heating tubes, two hydro-cyclones (one de-gasser and one decanter) and one tubular heat exchanger; a continuous purification loop, connected in parallel, comprising pressure reducing valves and resin pots which also allow studies of the stability of resins under pressure, temperature and radiation; following the gas separator is a gas loop for studying the recombination of the radiolytic gases in the steam phase. The preceding circuits, as well as others, return to a low pressure storage circuit. The cold water of the low pressure storage flask is continuously reintroduced into the high pressure main circuit by means of a return pump at a maximum head of 160 kg /cm{sup 2}, and adjusted to the pressurizer level. This loop is also a testing bench for the tight high pressure apparatus. The circulating pump and the connecting flanges (Oak Ridge type) are water-tight. The feed pump and the pressure reducing valves are not; the un-tight ones have a system of leak recovery. To permanently check the tightness the circuit has been fitted with a leak detection system (similar to the HRT one). (author)Fren. [French] Une cellule experimentale a eau sous pression a ete realisee pour l'etude de l'evolution et de la detection de ruptures de gaines dans le cas d'un reacteur pressurise. Les performances de ce circuit sont: 350 deg. C maximum pour la temperature et 160 kg/cm{sup 2} maximum pour la pression, le debit pouvant atteindre 5 m{sup 3}/h. Le circuit complet est constitue de plusieurs parties: un circuit principal avec pompe de circulation a rotor immerge, preiseur a vapeur, tubes chaudieres, deux cyclones, l'un decanteur et l'autre separateur de gaz, et un echangeur a tubes; sur ce circuit principal est monte en derivation un circuit de purification continue avec detendeurs et pot de resines devant permettre en plus l'etude de la tenue des resines a la pression et a la temperature; a la sortie du cyclone degazeur est branche un circuit de gaz destine a l'etude de la recombinaison des gaz de radiolyse en phase vapeur. Le circuit de resines, le circuit de gaz, ainsi que divers petits circuits de prelevement reviennent tous a un circuit de stockage basse pression; une pompe de relevage, refoulant sous 160 kg/cm{sup 2} et asservie au niveau dans le pressuriseur, reinjecte en permanence de l'eau du circuit basse pression au circuit principal. Cette cellule constitue un banc d'essai egalement pour le materiel etanche a haute pression. La pompe de circulation et les brides de raccordement (du type Oak Ridge) sont etanches; la pompe d'alimentation et les detendeurs ne sont pas etanches; des vannes etanches sont a l'essai, les autres vannes non etanches comportent une recuperation des fuites. Un systeme detecteur de fuites d'un principe analogue a celui utilise sur la pile americaine HRT a ete monte sur ce circuit et permet un controle permanent de l'etancheite. (auteur)}
place = {France}
year = {1958}
month = {Jul}
}