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Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:热科学与技术

Affiliation of Author(s):能源与动力学院

Issue:1

Page Number:20-25

ISSN No.:1671-8097

Abstract:Focuses on the local heat transfer performance of triangular sub-channel in the supercritical pressure water-cooled reactor (SCWR) with the pressure value of 25 MPa,mass rate of 800 kg/(m2 · s),heat flux value of 600 kW/(m2 · K).The fuel rod diameter is 8.0 mm,and the ratio of pitch to diameter is 1.2.Flow and heat transfer of supercritical water has been investigated using the computational fluid dynamics code ANSYS CFX and used ANSYS ICEM to get polyhedral meshes.Numerical simulation can be used to analysis the feasibility of enhanced heat transfer and reduce cladding temperature by grid spacer with blockage discs.In addition,the different results of heat transfer between applying the grid spacer in high enthalpy region and low enthalpy region in sub-channel is reported.

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