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Title: Radiolysis gas formation and pressure increase during a criticality excursion

Abstract

During a criticality excursion occurring in fissile solution, most of the energy released is transformed into thermal heating and the formation of gas by radiolytic decomposition of water. In addition, for fast kinetics excursions, a pressure increase in the internal solution is observed. This pressure increases and hydrogen generation can pose a safety concern. To understand and to model these phenomena, the Commissariat a l'Energie Atomique (CEA) Institute for Nuclear Protection and Safety has carried out specific experiments at the SILENE facility to: measure the pressure increase accompanying the power peak and determine the volume of radiolysis gas formed as a function of the energy and medium. These results are interrelated, and it should be possible to make use of pressure, energy, and radiolysis gas data to set up an equation of state of fissile solution and, consequently, to improve currently existing calculation models.

Authors:
;
Publication Date:
OSTI Identifier:
5227517
Report Number(s):
CONF-890604-
Journal ID: ISSN 0003-018X; CODEN: TANSA; TRN: 90-002495
Resource Type:
Conference
Journal Name:
Transactions of the American Nuclear Society; (USA)
Additional Journal Information:
Journal Volume: 59; Conference: Annual meeting of the American Nuclear Society, Atlanta, GA (USA), 4-8 Jun 1989; Journal ID: ISSN 0003-018X
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; SILENE REACTOR; CRITICALITY; REACTOR SAFETY; WATER; RADIOLYSIS; CALCULATION METHODS; CEA; FISSILE MATERIALS; FISSION; HEATING; HYDROGEN; PRESSURE DEPENDENCE; QUANTITY RATIO; SAMPLING; TRANSIENTS; US DOE; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CHEMISTRY; DECOMPOSITION; ELEMENTS; ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; FISSIONABLE MATERIALS; FRENCH ORGANIZATIONS; HYDROGEN COMPOUNDS; MATERIALS; NATIONAL ORGANIZATIONS; NONMETALS; NUCLEAR REACTIONS; OXYGEN COMPOUNDS; RADIATION CHEMISTRY; RADIATION EFFECTS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SAFETY; US ORGANIZATIONS; ZERO POWER REACTORS; 220900* - Nuclear Reactor Technology- Reactor Safety; 220600 - Nuclear Reactor Technology- Research, Test & Experimental Reactors

Citation Formats

Barbry, F., and Rozain, J.P. Radiolysis gas formation and pressure increase during a criticality excursion. United States: N. p., 1989. Web.
Barbry, F., & Rozain, J.P. Radiolysis gas formation and pressure increase during a criticality excursion. United States.
Barbry, F., and Rozain, J.P. Sun . "Radiolysis gas formation and pressure increase during a criticality excursion". United States.
@article{osti_5227517,
title = {Radiolysis gas formation and pressure increase during a criticality excursion},
author = {Barbry, F. and Rozain, J.P.},
abstractNote = {During a criticality excursion occurring in fissile solution, most of the energy released is transformed into thermal heating and the formation of gas by radiolytic decomposition of water. In addition, for fast kinetics excursions, a pressure increase in the internal solution is observed. This pressure increases and hydrogen generation can pose a safety concern. To understand and to model these phenomena, the Commissariat a l'Energie Atomique (CEA) Institute for Nuclear Protection and Safety has carried out specific experiments at the SILENE facility to: measure the pressure increase accompanying the power peak and determine the volume of radiolysis gas formed as a function of the energy and medium. These results are interrelated, and it should be possible to make use of pressure, energy, and radiolysis gas data to set up an equation of state of fissile solution and, consequently, to improve currently existing calculation models.},
doi = {},
journal = {Transactions of the American Nuclear Society; (USA)},
issn = {0003-018X},
number = ,
volume = 59,
place = {United States},
year = {1989},
month = {1}
}

Conference:
Other availability
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