Numerical analysis of heat transfer in the concentric recuperator for Chinese multifunctional experimental loop DRAGON-IV

摘要

It is difficult to measure the detailed flow fields and heat transfer of the concentric recuperator heat exchanger for Chinese multifunctional experimental loop DRAGON-IV. Consequently, the three-dimension numerical analysis of the LiPb flow and heat transfer in loop has been carried out using the CFD code FLUENT. The detailed flow fields, which include temperature, velocity, pressure and heat transfer of liquid LiPb in concentric recuperator test section, are presented as a reference for the experiments of high temperature corrosion, stress corrosion, concentric recuperator heat transfer, mini-TBM test, thermal-hydraulics and the MHD effect test.