Analysis of in-vessel core catcher influencing on neutron irradiation of pressure vessel
Creators
- 1. State Nuclear Power Technology R and D Center, Beijing (China)
- 2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing (China)
Description
The strategy of in-vessel core catcher (IVCC) can be applied to achieve in-vessel retention on the condition of serious accident in pressured water reactor (PWR). The IVCC is a part of reactor pressure vessel (RPV) and it can't be replaced in life span of nuclear power plant. In addition, it endured neutron irradiation in long-term. The typical PWR RPV model and IVCC model were studied. The results show that IVCC don't change fast neutron flux in pressure vessel, and it don't influence the RPV irradiation result. Furthermore, the thermal neutron flux of pressure vessel obviously reduces, and the total irradiation level of pressure vessel reduces. The IVCC can't make against irradiation performance of the RPV, and it is useful for avoiding aging of RPV adversely. (authors)
Additional details
Publishing Information
- Journal Title
- Atomic Energy Science and Technology
- Journal Volume
- 47
- Journal Issue
- suppl
- Journal Page Range
- p. 234-238
- ISSN
- 1000-6931
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 48068993
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- CORE CATCHERS; FAST NEUTRONS; IRRADIATION; NUCLEAR POWER PLANTS; PERFORMANCE; PHYSICAL RADIATION EFFECTS; PRESSURE VESSELS; PWR TYPE REACTORS; RETENTION; SERVICE LIFE; THERMAL NEUTRONS
- Descriptors DEC
- BARYONS; CONTAINERS; ELEMENTARY PARTICLES; ENRICHED URANIUM REACTORS; FERMIONS; HADRONS; LIFETIME; NEUTRONS; NUCLEAR FACILITIES; NUCLEONS; POWER PLANTS; POWER REACTORS; RADIATION EFFECTS; REACTOR COMPONENTS; REACTORS; THERMAL POWER PLANTS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- 5 figs., 2 tabs., 8 refs.