Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (1): 8 doi: 10.1007/s41365-016-0017-6

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Thermal-hydraulic design and transient analysis of passive cooling system for CPR1000 spent fuel storage pool

Li Ge 1, Hai-Tao Wang 1,2, Guo-Liang Zhang 3, Jun-Li Gou 1, Jian-Qiang Shan 1, Bin Zhang 1, Bo Zhang 1, Tian-Yu Lu 1, Zi-Jiang Yang 1   

  1. 1. Xi’an Jiaotong University, Xi’an, 710049, China
    2. Shanghai Nuclear Engineering Research and Design Institute, Shanghai, 200233, China
    3. China Nuclear Power Technology Research Institute, Shenzhen, 518026, China
  • Contact: Jun-Li Gou E-mail:junligou@mail.xjtu.edu.cn
Li Ge, Hai-Tao Wang, Guo-Liang Zhang, Jun-Li Gou, Jian-Qiang Shan, Bin Zhang, Bo Zhang, Tian-Yu Lu, Zi-Jiang Yang. Thermal-hydraulic design and transient analysis of passive cooling system for CPR1000 spent fuel storage pool.Nuclear Science and Techniques, 2016, 27(1): 8     doi: 10.1007/s41365-016-0017-6

Abstract:

This paper proposes a design of passive cooling system for CPR1000 spent fuel pool (SFP). Our design can effectively manage the SFP temperature not to exceed 80 °C. Then the transient analysis of the CPR1000 SFP with designed passive cooling system is carried out in station blackout (SBO) accident by the best-estimate thermal-hydraulic system code RELAP5. The simulation results show that to maintain the temperature of CPR1000 SFP under 80 °C, the numbers of the SFP and air cooling heat exchangers tubes are 6627 and 19 086, respectively. The height difference between the bottom of the air cooling heat exchanger and the top of the SFP heat exchanger is 3.8 m. The number of SFP heat exchanger tubes decreases as the height difference increases, while the number of the air cooling heat exchanger tubes increases. The transient analysis results show that after the SBO accident, a stable natural cooling circulation is established. The surface temperature of CPR1000 SFP increases continually until 80 °C, which indicates that the design of the passive air cooling system for CPR1000 SFP is capable of removing the decay heat to maintain the temperature of the SFP around 80 °C after losing the heat sink.

Key words: Spent fuel pool, CPR1000, Passive cooling system, RELAP5