Viability of hydrogen water chemistry for protecting in-vessel components of boiling water reactors
- Center for Advanced Materials, Pennsylvania State Univ., University Park, PA (US)
This paper reports that a mixed potential model (MPM) has been developed for calculating electrochemical potential (ECP) data for boiling water reactor (BWR) in-vessel components and recirculation piping using compositional data obtained from radiolysis water chemistry models. The calculated core component ECPs for the Duane-Arnold BWR are in good agreement with limited in-plant data. The calculated ECP data suggest that hydrogen water chemistry (HWC) will be effective in protecting the core inlet and the recirculation system of Duane-Arnold against intergranular stress corrosion cracking (IGSCC) but that it may be effective for this purpose in Dresden-2 because of the higher concentrations of radiolysis products predicted to exist in this reactor. Furthermore, the MPM predicts that HWC will be ineffective in protecting various in-vessel components such as the upper plenum, fuel channels, core bypass structure, and the downcomer.
- OSTI ID:
- 7041839
- Journal Information:
- Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 48:3; ISSN 0010-9312; ISSN CORRA
- Country of Publication:
- United States
- Language:
- English
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210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
BWR TYPE REACTORS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CONTAINERS
COOLING SYSTEMS
CORROSION
CORROSION PROTECTION
CORROSIVE EFFECTS
CRACK PROPAGATION
DECOMPOSITION
ELECTROCHEMICAL CORROSION
EMBRITTLEMENT
ENRICHED URANIUM REACTORS
HYDROGEN EMBRITTLEMENT
PLANNING
POWER REACTORS
RADIATION EFFECTS
RADIOLYSIS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR VESSELS
REACTORS
REDOX REACTIONS
STRESS CORROSION
THERMAL REACTORS
WATER CHEMISTRY
WATER COOLED REACTORS
WATER MODERATED REACTORS