Nuclear Techniques ›› 2017, Vol. 40 ›› Issue (3): 30605-030605.doi: 10.11889/j.0253-3219.2017.hjs.40.030605


Study on mass flow distribution of CSR1000

CHEN Jie1,2,3, ZHOU Tao1,2,3, LIU Liang1,2,3, XIA Bangyang4   

  1. 1. School of Nuclear Science and Engineering, North China Electric Power University, Beijing 102206, China;
    2. Institute of Nuclear Thermal-hydraulic Safety and Standardization, North China Electric Power University, Beijing 102206, China;
    3. Beijing Key Laboratory of Passive Safety Technology for Nuclear Energy, Beijing 102206, China;
    4. State Key Laboratory of Reactor System Design Technology, Chengdu 610041, China
  • Received:2016-10-08 Revised:2016-11-16 Online:2017-03-10 Published:2017-03-11
  • Supported by:

    Supported by Key Laboratory of Nuclear Technology Design of Nuclear Reactor Systems Research (No.2014BH0041), Central University Basic Research and Operating Funds (No.2014BJ0086)


Background: Reactor core of supercritical water-cooled reactor of China (CSR1000) is selected as research object. Purpose: The establishment of thermal-hydraulic calculation model is to calculate coolant outlet flow and the outlet pressure, which is on the condition of changing the core power, flow and temperature distribution, and the size of the core inlet structure. Methods: Taking the SCAC (Steady supercritical water-cooled reactor analysis code) safety analysis code as calculation method. Results: The calculated results show that adjusting moderately the flow distribution of initial inlet fuel assembly will distribute uniformly the flow distribution of respective sub-channel. Inside and outside of the fuel assembly channel outlet pressure drop show an "N" shaped variation. Increasing the inlet core power of internal fuel assembly will reduce the flow distribution within internal fuel assembly. Conclusion: Adjusting moderately the flow distribution of initial inlet core will distribute uniformly the power distribution.

Key words: CSR1000, Inside and outside the fuel assembly, Mass flow distribution, Pressure drop

CLC Number: 

  • TL36