Mitigation of radiation buildup in the BWR by feedwater zinc addition
Description
The benefit of adding zinc to the BWR primary system as a method of reducing primary system radiation buildup was first hypothesized in 1983. Following corroborating laboratory testing, the first zinc addition system was installed at the Hope Creek plant in 1986. Currently, nine BWRs have implemented zinc addition and an additional four units are in the process of being installed. This paper provides the current status of this technology. It reviews the radiation buildup results following zinc addition and re-examines the Zn-65 outage release concern identified- at the first refueling outage for Hope Creek. The status of the search for a zinc supply depleted in Zn-64 is discussed and the potential availability schedule is provided. Recent experience on the impact of hydrogen water chemistry on BWR radiation buildup, both with and without zinc addition, is reviewed. (author)
Additional details
Publishing Information
- Publisher
- Japan Atomic Industrial Forum, Inc.
- Imprint Place
- Tokyo (Japan)
- Imprint Title
- Proceedings of the 1991 JAIF international conference on water chemistry in nuclear power plants
- Imprint Pagination
- 811 p.
- Journal Page Range
- p. 55-65.
Conference
- Title
- 1991 JAIF international conference on water chemistry in nuclear power plants.
- Dates
- 22-25 Apr 1991.
- Place
- Fukui (Japan).
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 23022811
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BWR TYPE REACTORS; COBALT 58; COBALT 60; FEEDWATER; ISOTOPE RATIO; PRIMARY COOLANT CIRCUITS; RADIATION DOSES; RADIATION PROTECTION; TIME DEPENDENCE; WATER CHEMISTRY; ZINC OXIDES; ZINC 65
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CHALCOGENIDES; COBALT ISOTOPES; COOLING SYSTEMS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ENRICHED URANIUM REACTORS; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; HYDROGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; OXIDES; OXYGEN COMPOUNDS; POWER REACTORS; RADIOISOTOPES; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; THERMAL REACTORS; WATER; WATER COOLED REACTORS; WATER MODERATED REACTORS; WATER TREATMENT; YEARS LIVING RADIOISOTOPES; ZINC COMPOUNDS; ZINC ISOTOPES