COMMISSIONING TEST STUDY ON RESIDUAL HEAT REMOVAL VENTILATION IN SPENT FUEL CANISTER UNLOADING STAGE OF HTR-PM PROJECT

抄録

The construction of high temperature gas cooled reactor pebble bed demonstration project (HTR-PM) in China began in 2012 and realized grid connected power generation in December 2021. Great progress has been made, which has accumulated experience for the promotion and application of subsequent high temperature gas cooled reactor technology. In particular, the operation performance of the first set of Innovative Nuclear Power Technology has been verified through the commissioning test on the project site, which has laid a foundation for the normal operation of subsequent high temperature reactor demonstration projects. As one of the main auxiliary process systems, the spent fuel storage system also adopts an innovative design scheme, and the rationality and operability of the system design are verified through commissioning tests. Among them, the residual heat removal ventilation system for spent fuel on-line unloading as a key technology has also carried out in-depth commissioning tests, The operation characteristics of the residual heat removal ventilation system in the unloading stage of the spent fuel storage canister under different working conditions are verified through the commissioning test, so as to ensure that the performance of the residual heat removal system in the unloading stage of the spent fuel meets the safety requirements, which is also of great significance to the safe operation of the whole high temperature gas cooled reactor demonstration project.