Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Hydrogen water chemistry effects on BWR radiation buildup. Volume 1: Laboratory results and plant data, final report

Technical Report ·
OSTI ID:10106440
 [1]
  1. GE Nuclear Energy, San Jose, CA (United States)
+ Show Author Affiliations
The effects of hydrogen water chemistry on radiation field buildup in BWRs have been thoroughly investigated through laboratory experiments and reactor data evaluation. Laboratory studies included (1) measurements of Co-60 release from oxide particles; (2) measurements of Co and Ni releases from Stellite and Inconel specimens; (3) Co-60 deposition on stainless steel and carbon steel, and (4) characterization of stainless steel corrosion films. These studies were conducted in NWC, HWC and NWC/HWC cycling water chemistry conditions. The results of these studies are presented and discussed in this report. Based on both laboratory data obtained in these studies and the reactor data, a plausible mechanism of enhanced radiation buildup under HWC conditions in a few BWRs is hypothesized. The proposed mechanism involves the formation of Cr-enriched oxide films on stainless steel surfaces under HWC conditions. The available reactor data including piping dose rates, gamma scanning results, chemical decontamination results and reactor water chemistry and radiochemistry data were carefully reviewed. It is concluded that the reactor data provide a strong evidence to support the proposed hypothesis. In order to minimize the impact of switching from NWC to HWC on radiation field buildup in operating reactors, a number of strategies are also suggested in this report.
Research Organization:
Electric Power Research Inst., Palo Alto, CA (United States); General Electric Co., San Jose, CA (United States). Nuclear Energy Div.
Sponsoring Organization:
Electric Power Research Inst., Palo Alto, CA (United States)
OSTI ID:
10106440
Report Number(s):
EPRI-TR--104605-V1; ON: UN95005265
Country of Publication:
United States
Language:
English

Similar Records

Control of radiation-field buildup in BWRs
Technical Report · Sat Jun 01 00:00:00 EDT 1985 · OSTI ID:5535512
Hydrogen water chemistry effects on BWR radiation buildup: Volume 4, Corrosion product sampling at Monticello and Brunswick-2. Final report
Technical Report · Tue Oct 31 23:00:00 EST 1995 · OSTI ID:204993
Radiation buildup and control in BWR recirculation piping
Conference · Wed Dec 31 23:00:00 EST 1986 · Trans. Am. Nucl. Soc.; (United States) · OSTI ID:7148320

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100
36 MATERIALS SCIENCE
360105
360106
BWR TYPE REACTORS
CORROSION AND EROSION
CRACKS
HYDROGEN EMBRITTLEMENT
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
BOILING WATER COOLED
RADIATION EFFECTS
REACTOR MATERIALS
STRESS CORROSION
WATER CHEMISTRY