Conference Proceedings Paper
THERMAL AND STABILITY CONSIDERATIONS OF CANDU-SCWR SLIDING PRESSURE STARTUP
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16
Junjie Pan (Xi'an Jiaotong University)
Jianqiang Shan (Xi'an Jiaotong University)
The feasibility of the sliding pressure startup of CANDU-SCWR is assessed from both thermal and stability considerations. The coupled neutronic/thermal-hydraulics stabilities are investigated for both super- and sub-critical pressure operating conditions. The startup system and startup procedure are designed. The detailed thermal-hydraulics analysis is assessed based on the subchannel analysis and a stability map is constructed based on non-dimensional parameters and frequency domain method. The results show that the maximum cladding surface temperature can be well restricted lower than criterion (850°C), and the stability can be maintained by controlling the power and flow rate during startup.
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