Safety analysis of loss of cooling accident for typical spent fuel pool
Creators
- 1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai (China)
Description
A model of spent fuel pool in nuclear power plants is developed by using the system code RELAP5/MOD3 and it simulates the hot water behavior of the whole spent fuel pool in the present paper. The nodalization in the model is based on the cycles of spent fuels. Based on the model, normal operation of the spent fuel pool and its cooling system is simulated. The spent fuel pool loss of cooling accident is simulated after that. The effects of radiation heat transfer mode, spray before leakage of radioactive material and the nodalization of hot channel and bypass outside of rack on the temperature response are analyzed. lt is shown in the calculation that the model is able to simulate the normal operation of the spent fuel pool and its cooling system and succeeds in establishing the mechanism of natural convection cooling. The fuel uncover time is 17.87 days and it takes 19.14 days for fuel PCT to exceed 1204 ℃. The 12.6 kg/s spray cooling takes 2.4 hour to reduce the temperature of the fuels from 726.9 ℃ to 100 ℃. (authors)
Additional details
Publishing Information
- Journal Title
- Nuclear Power Engineering
- Journal Volume
- 36
- Journal Issue
- 4
- Journal Page Range
- p. 149-153
- ISSN
- 0258-0926
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 49047451
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- ACCIDENTS; BYPASSES; COOLING SYSTEMS; FUEL STORAGE POOLS; HEAT; HOT CHANNEL; HOT WATER; LEAKS; LOSSES; NATURAL CONVECTION; NUCLEAR POWER PLANTS; RADIOACTIVE MATERIALS; SAFETY ANALYSIS; SIMULATION; SPENT FUELS; SPRAY COOLING; STEADY-STATE CONDITIONS
- Descriptors DEC
- CONVECTION; COOLING; ENERGY; ENERGY SOURCES; ENERGY SYSTEMS; ENERGY TRANSFER; FUELS; HEAT TRANSFER; HYDROGEN COMPOUNDS; MASS TRANSFER; MATERIALS; NUCLEAR FACILITIES; NUCLEAR FUELS; OXYGEN COMPOUNDS; POWER PLANTS; REACTOR MATERIALS; THERMAL POWER PLANTS; WATER
Optional Information
- Notes
- 6 figs., 7 refs.