The hypervapotron（HV）,as an enhanced heat transfer technique,will be used for ITER divertor components in the dome region as well as the enhanced heat flux first wall panels.W-Cu brazing technology has been develope...The hypervapotron（HV）,as an enhanced heat transfer technique,will be used for ITER divertor components in the dome region as well as the enhanced heat flux first wall panels.W-Cu brazing technology has been developed at SWIP（Southwestern Institute of Physics）,and one W/CuCrZr/316 LN component of 450 mm×52 mm×166 mm with HV cooling channels will be fabricated for high heat flux（HHF） tests.Before that a relevant analysis was carried out to optimize the structure of divertor component elements.ANSYS-CFX was used in CFD analysis and ABAQUS was adopted for thermal-mechanical calculations.Commercial code FE-SAFE was adopted to compute the fatigue life of the component.The tile size,thickness of tungsten tiles and the slit width among tungsten tiles were optimized and its HHF performances under International Thermonuclear Experimental Reactor（ITER） loading conditions were simulated.One brand new tokamak HL-2M with advanced divertor configuration is under construction in SWIP,where ITER-like flat-tile divertor components are adopted.This optimized design is expected to supply valuable data for HL-2M tokamak.展开更多
In the light of the needs to develop high-performance heat transfer component for nation-level large-scale scientific projects of China,a hypervapotron experimental platform with supply of heat flux 1 10 MW m-2 was es...In the light of the needs to develop high-performance heat transfer component for nation-level large-scale scientific projects of China,a hypervapotron experimental platform with supply of heat flux 1 10 MW m-2 was established.With this platform,the multiphase flow and heat transfer phenomena on the surface of triangular fin when the subcooled water flowed through were observed and measured with the planar laser induced fluorescence(PLIF) and high-speed photography techniques.The temperature contour on the slice plane of fin symmetry was measured and the heat flux contour was processed based on gradient computation.It is confirmed that:1) PLIF with high-speed photography is very powerful technique to investigate the multiphase flow of hypervapotron quantitatively;2) evaporation is the primary way in heat transfer mechanism of hypervapotron flow under the condition of high heat flux.The techniques and results obtained will provide useful reference in the R&D of hypervapotron technology in China.展开更多
基金supported by the National Magnetic Confinement Fusion Science Program of China(Nos.2011GB110001 and 2011GB110004)
文摘The hypervapotron（HV）,as an enhanced heat transfer technique,will be used for ITER divertor components in the dome region as well as the enhanced heat flux first wall panels.W-Cu brazing technology has been developed at SWIP（Southwestern Institute of Physics）,and one W/CuCrZr/316 LN component of 450 mm×52 mm×166 mm with HV cooling channels will be fabricated for high heat flux（HHF） tests.Before that a relevant analysis was carried out to optimize the structure of divertor component elements.ANSYS-CFX was used in CFD analysis and ABAQUS was adopted for thermal-mechanical calculations.Commercial code FE-SAFE was adopted to compute the fatigue life of the component.The tile size,thickness of tungsten tiles and the slit width among tungsten tiles were optimized and its HHF performances under International Thermonuclear Experimental Reactor（ITER） loading conditions were simulated.One brand new tokamak HL-2M with advanced divertor configuration is under construction in SWIP,where ITER-like flat-tile divertor components are adopted.This optimized design is expected to supply valuable data for HL-2M tokamak.
基金supported by the Fundamental Research Funds for the Central Universities of Chinathe National Magnetic Confined Fusion Energy Program of China (Grant No. 2009GB104005)
文摘In the light of the needs to develop high-performance heat transfer component for nation-level large-scale scientific projects of China,a hypervapotron experimental platform with supply of heat flux 1 10 MW m-2 was established.With this platform,the multiphase flow and heat transfer phenomena on the surface of triangular fin when the subcooled water flowed through were observed and measured with the planar laser induced fluorescence(PLIF) and high-speed photography techniques.The temperature contour on the slice plane of fin symmetry was measured and the heat flux contour was processed based on gradient computation.It is confirmed that:1) PLIF with high-speed photography is very powerful technique to investigate the multiphase flow of hypervapotron quantitatively;2) evaporation is the primary way in heat transfer mechanism of hypervapotron flow under the condition of high heat flux.The techniques and results obtained will provide useful reference in the R&D of hypervapotron technology in China.
