Nuclear Science and Techniques ›› 2019, Vol. 42 ›› Issue (1): 10604-010604.doi: 10.11889/j.0253-3219.2019.hjs.42.010604

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Development and preliminary validation of a sub-channel analysis code for molten chloride-cooled fast reactor

Ming LIN1,2,Maosong CHENG1(),Zhimin DAI1   

  1. 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-10-23 Revised:2018-11-26 Online:2019-01-10 Published:2019-01-25
  • Contact: Maosong CHENG
  • Supported by:
    Supported by Strategic Pilot Science and Technology Project of Chinese Academy of Sciences (No.XD02001005)

Abstract: Background

Molten salt-cooled reactor (MSR) is one of six Generation IV advanced reactor concepts, molten chloride-cooled fast reactor (MCCFR) is one of MSRs which uses high temperature chloride-salt as coolant and has great advantages of high temperature, low pressure and harden neutron energy spectrum, as well as potential in inherent safety.


This study aims to develop and valid a sub-channel analysis code for calculation and analysis of the thermal-hydraulic characteristics of MCCFR.


The single-phase sub-channel analysis approach is applied to coolant thermal-hydraulic analysis to solve transient mass, momentum and energy conservation equations. And based on the 7-bundle geometry, the pressure drop model and the turbulent mixing model applied in the sub-channel analysis code for molten chloride-cooled reactor are specifically analyzed and validated by comparison with these numerical results from Fluent.


The results indicate that the numerical results of the developed sub-channel analysis code with Rogers-Rosehart turbulent mixing model and Cheng-Todreas pressure drop model are in good agreement with that from Fluent in the case of steady state and transient.


The development and preliminary validation of the sub-channel analysis code will provide an effective design and analysis tool for the new chloride salt cooled fast reactor.

Key words: Molten chloride-salt reactor, Sub-channel analysis, Pressure drop model, Turbulent mixing model, Fluent

CLC Number: 

  • TL333