Analysis of Spent Fuel Pool Cooling Problems of CPR1000 NPP

The spent fuel pool of the CPR1000 type nuclear power plant（pressure water reactor）may loses it’s cooling function in some conditions. The author uses Ling Dong NPP as the example to analysis the design basis, system functions and defects of PTR, and gives some suggestions to improve the PTR with considering the requirements of technical specification. The results show that the spent fuel pool cooling problem is because that the designer does not consider the redundancy of the PTR completely. The author suggests to improve PTR cooling capacity and reduces the risk of losing cooling of spent fuel pool.